ARMY NN-P-71 C-1973 PALLETS MATERIAL HANDLING WOOD STRINGER CONSTRUCTION 2-WAY AND 4-WAY (PARTIAL)《2-WAY和4-WAY型(部分)木梁施工物料运输货盘》.pdf

《ARMY NN-P-71 C-1973 PALLETS MATERIAL HANDLING WOOD STRINGER CONSTRUCTION 2-WAY AND 4-WAY (PARTIAL)《2-WAY和4-WAY型(部分)木梁施工物料运输货盘》.pdf》由会员分享，可在线阅读，更多相关《ARMY NN-P-71 C-1973 PALLETS MATERIAL HANDLING WOOD STRINGER CONSTRUCTION 2-WAY AND 4-WAY (PARTIAL)《2-WAY和4-WAY型(部分)木梁施工物料运输货盘》.pdf（29页珍藏版）》请在麦多课文档分享上搜索。

1、FEDERAL SPECIFICATION PAIJEIS, MATERIAL HANDLING, WOOD, STRINGEZ CONSTRUCTION, 2-WAY AND 4-WAY (PARTIAL) This specification was approved by the Commissioner, Federal Supply Service, General Services Administration, for the use of all Federal Agencies. 1. SCOPE 1.1 This specification covers the desig

2、n, materials, and fabrication of various sizes and styles of wood pallets for general storage and materials handling. 1.2 Classification. Pallets covered by this specification sha.ll be of the following types, classes, styles, sizes, groups, and grades as speci- fied (see 6.2): Type I - Two-way, flu

3、sh (see figure 1). Class 1 - Assembled. Class 2 - Unassenbled (knockdown) . Style A - Nonreversible. Length and Width (inches) : Size 1 - 32 by 40. Size .2 - 40 by 48. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NN-P-71C Size 3 - 48 by 48. Size 4

4、 - 48 by 60. Style B - Reversible. Length and Width (inches Size 1 - 32 by 40. Size 2 - 40 by 48. Size 3 - 48 by 48. 2 ryPe II - Two-way, wing, assembled, nonreversible (see figure 2). Length and Width (inches) : Size 1 - 32 by 40. Size 2 - 40 by 48. Size 3 - 48 by 48. Type III - Four-way (partial),

5、 flush, assembled, nonreversible (see figure 3). Length and Width (inches) : Size 2 - 40 by 48. me m - Faur-way, partial, wing, assembled, nonreversible, single use, 40 x 48 (see figure 6 and 7) . Type V - Four-way partial, wing, nonreversible (see figures 6, 7 and 8). Class 1 - Assembled Class 2 -

6、Unassembled. _c_ .- L. _1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NN-P-LC 39 m 9999974 0037333 2 m NN-p-nc Length and Width (inches) Size 1 - 32 by 40. Size 2 - 40 by 48. Type VI - Two-Wayy flush; assenbled, 60 x 60 (for tire storage) (see fi

7、gures 9 and 10). Graup I - Low densiw woads (softwoods and hardwoods). Group II - Medium density woods (sofEwoods). Group III - High density woods (hardwoods) Group IV - Very high density woods (hardwoods), Grade A Untreated. Grade B - Treated. 2. APPLICABlZ DOCUMENTS 2.1 The follaring documents, of

8、 the issues in effect on date of. invitation for bids or request for proposal, form a m of this specification to the extent specifiedherein: 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m-p-71 Federal Specifications : FF-N-L05 QQ-S-781 TT-W-572

9、PPP-B-636 Federal .Standards : FED. STD. No. 123 - Nails, Brads, Staples and Spikes: Wire, Cut and Wrought. - Strapping, Steel-, Flat and Seals. - Wood-Preservative; Water- - Boxes, Shipping, Fiberboard. Repellent. - Marking for Domestic Shipment (Civil Agencies). (Activities outside the Federal Gov

10、ernment may obtain cupies of Federal Specifications, Standards, and Handbooks as outlined under General Information in the Index of Federal Specifications and Standards and at the prices indicated in the Index. The Index, which includes cumulative monthly supplements as issued, is for sale on a subs

11、cription basis by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. (Single copies of this specification and other Federal Specifications required by activities outside the Federal Government for bidding purposes are available without charge from Business Servic

12、e Centers at the General Services Administration Regional Offices in Boston, New York, Washington, DC, Atlanta, Chicago, Ifansas City, MO, Fort Worth, Denver, San Francisco, Los Angeles, and SeattLe, WA. (Federal Government activities may obtain copies of Federal Specifications, Standards, and Handb

13、ooks and the Index of Federal Specifications and Standards from established distribution points in their agencies.) Military Standards : MIL-STD-105 MIL-S!I!D-129 MIL-STD-731 MIL-STD-1363 - Sampling Procedures and Tables for Inspection by Attributes. - Marking for Shipment and Storage. - Quality of

14、Wood Members for - Measurement of Wood Moisture Containers and Pallets. Content. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, NN-P-71C 39 m 7777774 0037315 b NN-P-71C .(Copies of standard8 required by suppliers in connection with specific prac

15、urement function8 rhould be obtaiued from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this opacification to the extent specified herein. Unless otherwise hdicated, the issue in effect on date of iUVit8tiOn for bids

16、 or request for proposal shall apply. Uniform Classification Committee, Agent: Uniform Freight Classification National Motor Freight Traffic Asrociation, Inc., Agent: National Motor Freight Classification (Application for copier should be addreosed to the American Trucking Associations, hc., ATTR: T

17、ariff Order Section 1616 P Street, W, Washington, DC 20036 *) National Wooden Pallet and Container hsociation: Specificatione and Grades for Warehouse, Permanent or- Returnable Pallet8 of Weat Cm8t Woods. (Application for copies should be addrersed to the National Wooden Pallet and ConCainer Associa

18、tion, 1619 Massrchuretts Avenue, NW, Washington, DC 20036,) American Society for Testing and Haterials (bsTM) Standard: E 18 67 - Rockwell hardness and Rockwell Hardness of Metallic Materials E 290 68 - Semi-Guided Bend Test for Ductility of Metallic Materials (Application for copie8 should be addre

19、sseid to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 3. REQUIRFSIENTS 3.1 Description. Stringer pallets covered by this specification are of six diTferent types: Two-way flush, two-way wing, four-way (partial) flush, four-way wing for single use, four-w

20、ay (partial) wing, and two-way flush for tire storage. Some of the pallets are available either assembled or disassembled, the latter to provide economical shipment. As many as five different sizes are covered in both low density and high density woods. 5 43) Provided by IHSNot for ResaleNo reproduc

21、tion or networking permitted without license from IHS-,-,-_I.- NN-P-7LC 37 W 7777774 00373Lb B = -_ - NN-P-C 3.2 First article (preproduction model). When specified (see 6.2) , the supplier shall furnish one or more pallets for examination and testing within the time frame specified (see 6.2), to pr

22、ove prior to starting production, that his production methods will produce pallets that comply with the requirements of this specification. Examination and tests shall be as specified in section 4 and shall be subject to surveillance and approval by the Government (see 6.3). 3.3 Materials. 3.3.1 Woo

23、d. All wood shall be of any of the species, or combination - thereof within a group, listed in MIL-STD-731. Quality or“ wood shall conform to class 2 structural classification of MIL-STD-731 with the following exceptions or additions. Moisture content o-f pallet components shall be in accordance wit

24、h 3.3.1.1. Type VI pallets shall be fabricated of group III or IV woods; other pallet types shall be of the wood group sgecified (see 6.2) . (a) Pith shall be firm and tight. (b) White speck shall not be permitted- except in type IV pallets for which the following applies. White speck shall not be p

25、ermitted-in stringers or edge deckboards. White speck may be in all other deckboards, but shall be limited in severity to scattered .rather than.honeycombed. Scattered white speck is characterized by theholes or pockets being filled with white cellulose material rather than the empty holes of areas

26、considered a.s honeycomb. not be permitted. consti tte in aggregate over 1/6 the surface of the individual piece (e) Deckboards and stringers for type IV pallets shall conform to the commercial grade and quality grade respectively as contained in Specifications and Grades- for Warehouse, Permanent o

27、r Returnable Pallets of West Coast Woods except for the preceding requirements which constitute exceptions when applicable. (c) Insect infestation, as evidenced by fresh dust piles, shall (d) Torn grain shall not exceed 1/16 inch in depth and shall not 3.3.1.1 Moisture content. Unless otherwise spec

28、ified (see 6.21, the moisture content of class 1 pallet components, except those for type IV pallets, shall be as follows at time of fabrication: Deckboards - average of 19 percent with no single piece Group III and IV woods over 1 inch thick shall not exceed 26 percent. Stringers - not over 26 perc

29、ent except for type VI pallets over 22 percent. which shall have no restriction. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NN-P-71C 39 7797774 0037317 T W NN-P-7lC Class 2 pallet components shall have the sane moisture content as specified for

30、class 1. Type IV pallets shall have no restriction on the moisture content. Conrponents of preserved pallets shall be seasoned according to the above requirements prior to preservative treatment. Moisture content shall be de-terrnined as specified in 4.5.2.3. 3.3.2 Nails. Nails shall conform to FF-N

31、-105, type II, style 18. The helical thread shall have a minimum of four flutes. Nails for pallets fabricated of groups 1 and 2 woods (softwoods) shall be 2-1/4 inches long by 0.120 inches in diameter. Nails for pallets fabricated of groups 3 and 4 woods (hardwoods) shall be 2-1/2 inches long by O .

32、120 inches in diameter. As an alternate fastener, a hardened steel nail having the following characteristics is acceptable: Length: 2-1/4 inches plus or minus 1/16 inch. Wire Diameter: 0.UO inch plus or minus 0.002 inch. Head: 1/4 inch dianeter plus or minus 5 percent, Hardness : Rockwell C42 minimu

33、m. Point: Diamond or chisel point 5/32 inch long plus or minus Pitch diameter: 0,138 inch plus or minus .O05 inch. Thread: Helical, minimum of four flutes, forming an angle of 1/16 inch. 60 degrees plus or minus 5 degrees with a plane perpendicular to the axis. Threads shall extend from the point up

34、 to at least 2/3 of the shank length. The alternate hardened nails shall be ductile enough to bend 90 degrees over a mandrel the same diameter as the nail without fracture. Ductility of nails shall be determined in accordance with 4.5.2.2. Hardness of the nails shall be determined in accordance with

35、 4,5.2?1. 3.4 Design and construction. Design and construction of class 1 pallets shall be in accordance with the requirements specified herein. Except for final assembly, class 2 pallets shall conform to the same requirements. Figures 1, 2, and 3 contained herein are for the convenience of identifi

36、caton and are not intended to preclude the purchase of pallets which are otherwise in accordance with the requirements of this specification. Figures 4 through 10 show detail requirements for the various types of pallets covered herein. 3.4,l Tolerances and positioning of components. A plus or minus

37、 tolerance of l/4 inch vil1 be permitted on the overall length and width of the assembled pallet. The deckboards and stringers of any one pallet shall be uniform in thickness and width, with a tolerance of 1/16 inch over the 7 Provided by IHSNot for ResaleNo reproduction or networking permitted with

38、out license from IHS-,-,-NN-P-71C minimum sizes specifie d in 3.4. 2. Stringers shall not protrude on any side and shall be cut square on the ends. Assembled pallets shall have an out- of-square deviation not to exceed 3/8 inch (3/4 inch difference in diagonals) Intermediate deckboards shall be para

39、llel with the edges and with each other. 3.4.2 Details of components . 3.4.2.1 Stringers. Stringers except for type VI pallets, shall be nominal 2 x 4 inches, surfaced or smooth sawn on both top and bottom surfaces. Stringers shall have minimum uniform width of 3-1/2 inches and a uniform thickness o

40、f 1-1/2 inches. The difference in width between the two ends of stringers shall not exceed 1/16 of an inch. The outside stringers shall be surfaced or smooth sawn on the outside face, in addition to the top and bottom. Outside stringers for type VI pallets sha2.1 be nominal 3 x 4 inches; center stri

41、nger shall be nominal 2 x 4 inches with minimum sizes as shown in figure 9. 3.4.2.1.1 Number and spacing of stringers. Types I and II pallets in the various widths, type IV pallets, and type V, size 1 pallets shall have the number of stringers as specified below.- Stringers shall be spaced uniformly

42、, except that +he second and fourth stringers on pallets 48 by 60 inches shall be spaced a minimum of 28 inches to a mahum of 30 inches between their inside surfaces, and located equidistant from the cen$er stringer. “pes III and V, size 2 pallets shall have four stringers with the two inside string

43、ers located so that their outside edges are 8 inches apart and equidistant from the outside stringers. Stringer Requirements (Types I, II, IV and V Size 1) Width of Pallet Number of Stringers (Inches) 40 48 60 3 3 5 Types I, III, and VI pallets shall have the outside stringers flush with the ends of

44、 the deckboards. Types II, IV, and V pallets shall have the outside stringers located as shown in figures 6 and 8. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3,4.2,1.2 Fork notches and strap- slots. Types III, IV, and V pallets shall have each

45、 stringer notched for fork truck entry. Each stringer shall have two notches 1-1/8 inch minimum to 1-1/4 inch maximum in depth. The bottom of each notch shall be a minimum of 8-1/2 inches and not over 10-1/2 inches in length, except that on type V, size 1 pallets the notch shall be 842 plus or minus

46、 1/8 inches long. Distance of the center of the notch to the end of the stringer shall be as follows: Size 1 - 9-1/4 inches plus or minus 1/8 inch Size 2 - 10-7/8 inches plus or minus 1/8 inch The top of the notch shall be not less than 7 inches long. Strap slots shall be provided in the upper edge

47、of all stringers for all wing type pallets as shown on figures 7 and 8. 3.4.2.2 Deckboards. Deckboards shall be of a length corresponding to the width of the pallet being fabricated. Deckboards shall be surfaced on one side to a thickness of not less than 11/16 inch. Top deck end and bottom deck ent

48、ry boards shall be free of wane on their outer edges and shall be mounted flush with the ends of the stringers. Top deck end and bottom deck entry boards shall be not less than 5-1/2 inches wide. Deckboards located over strap slots shall be a minimum of 4-1/2 inches wide to provide adequate nailing

49、space on either side of the slots, The balance of top deckboards shall be random widths with none less than nominal 4 inches nor more than nominal 8 inches. Spacing between top deck boards shall not exceed 1-1/2 inches except that type IV pallets shall have a spacing of 3 inches and type VI pallets shall be as shown in figure 9. On reversible pallets spacing of bottom deckboards shall be the same as for