1、, . f For Chief, 16-1-2 Insignia, Grade, Enlisted Personnel, Metal; For 1/C, 16-1-3 Insignia, Grade, Enlisted Personnel, Metal; For Senior and Master Chief Petty Officers (Navy) 2/C, and 3/C Petty Officers (Navy) Apprentice and Feaman Group Rates (Navy) (Miniature copies of Drawings 16-1-1, 16-1-2,
2、and 16-1-3, are attached as figures 1, 2, and 3 respectively). 2.2 Other publications The following documents form a part of this specification to the extent specified herein. Unless a specific issue is indicated, the issues in effect on date of invitation for bids or request for proposal shall appl
3、y: NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT National.Motor Freight Classification (Application for copies should be addressed to American Trucking Associa- tions, Attn: Traffic Dept., 1616 P Street, Nw, Washington, DC 20036.) UNIFORM CLASSIFICATION COMMITTEE, AGENT Uniform Freight Cla
4、ssification (Application for copies should be addrepsed to the Uniform Classification Committee, Room 1106, * 222 South Riverside Plaza, Chicago, ILL 60606) 3. REQUIREMENTS 3.1 Guide sample Samples, when- furnished, are solely for guidance and information to the contractor (see 6.3). Variations from
5、 this specification may appear in the sample, in which case this specification shall govern, 3 . Licensed by Information Handling Services.- MIL-I-L7578D 8Lt m 977770b 038Lb37 7 m mL-I-19578D (NU) 3.1.1 Government .laned.propery Hubs, when furnished by the. Government, shall be used only for making
6、the contractors working dies. The contractor S stamping and embossing dies shall be tooled and polished to remove dents, sdratches and.all*other imperfections. (see 6.4). I 3.1.2Approvedcntrctorsahple When hubs are not available, all require- ments specified for the.applicable.insignia and as exhibi
7、ted by the approved contractors sample shall apply- (see 6.5). *3.2 First article When specified (see 6.21, the contractor shall furnish sample unit(s) for first article inspection and approval Csee 4.2). 3.3 Materials 3.3.1pper Ijaselloy !Che copper base alloy from which the insignia shall be made
8、shall be free from pits, scale (including red oxide), dents, nicks, cracks, scratches, segregations and foreign inclusions that will not be removed in later processing. The alloy shall conform to the chemical composition specified in Table T when tested as specified in 4.3 .l. Table I - .516;5-19.5“
9、. lo. .25 . “ . . .JO . . Remainder *3.3,2 Chemical .f iriish The black chemical finish shall conform to MIL-F-495. *3.3.3 Enamel The enamel shall- be a dead-flat black synthetic baking type - . . . . er . . . Nickel . . . - . (max) . . hax) . . (max) Zinc and shall be tested as specified in 4i3.1,-
10、 3.34.Hard solder The hard solder shall be a silver alloy having a minimurrl melt2ng point of 1,075OP be.3.6.3). 3.3.5AttaChing-dvice The attaching device shall be a prong and clutch of the type shown in ftgure 4. The prong shall be-of the nickel-silver alloy specified in Table T and the clutch fast
11、ener shall be brass conform-ing to the chemical compositions specified . in Table I when tested as specified in Table TT. *Zn addition, the attaching device shall remain functional after testing as specified in 4.5.1 v When the size of the ins.ignia. is a limiting factor, the clutch inay be 318. the
12、 contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the contractor .may use his own or any other facilities suitable for the perfofmance of the inspection requirements specified herein, unless disa
13、pproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Certificate of compliance Where certficiates of complian
14、ce are submitted, the Government reserves the right to check test such items to determine the validity of the certification. 4.2 First article inspection The first article submitted in accordance with 3.2 shall be inspected as specified in 4.3.3 for compliance with design, construction, workmanship
15、and dimensional requirements; 4.3 Inspection Inspection shall be performed in accordance with MIL-STD-105, except. where otherwise indicated herein. 4.3.1 Component and material inspection In accordance with 4.1 above, com- -ponents and materials shall be inspected and tested in accordance with the
16、requirements of referenced specifications, drawings, and standards unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase document. Tn addition, the materials.listed in Table 1I.shall be tested for the characteristics specified and in accordance with
17、the referenced testmethods. The values specified in Section 3, except where otherwise specified, apply to the average of the determinations made on the sample unit for test purposes as specified in the applicable test methods. All test reports shall contain the individual values utilized in.expressi
18、ng the final results. The sample unit shall be as indicated in Tabl.e.11. The sample size shall be as indicated below. The lot-shall be unacceptable if one or more sample units fail to meet any of the test requirements specified. Lot size Sample size 800 or less 801 thru 22,000 2 5 22,001 and over 3
19、 6 1 O Licensed by Information Handling Services r I H H al rl .1c H B ! I T m -m x 4 i I2 cd m rcl O u al 7 O Licensed by Information Handling ServicesMIL-I-1757BD 84 E 7777906 03Eblr3 O E *4.3.2 In-process inspection Inspection may be made at any point or during any phase of the manufacturing proc
20、ess to determine whether operations or assemblies are carried. out as specified. The Government reserves the right to exclude from consideration for acceptance any . - material or service for which in-process inspection had indicated non- conformance. 4.3.3 Examination of the end-item Examination of
21、 the end item shall be in accordance with 4.3.3.1 and 4.3.3.2. The applicable inspection levels and acceptable quality levels (AQZS) shall be as indicated in 4.3.3.3. , The sample unit shalI be one finished insignia. The lot size shall be . expressed in units of insignia. *4.3.3.1 Visual examination
22、 The finished hsignia shall be-examined for defects in design, workmanship, color, finish and marking. Defects designated by an asterisk (*) shall be classified as a major when seriously affecting serviceability or appearance and minor when affecting serviceability or appearance but not seriously. C
23、lassification Examine Defect Major * .Minor I Color 1. 2. 3“ II Enamel 1. 2. 3. 4. 5. 6. 8 ? III Design, con-: 1. . struction and 2. Workmanship 3. 4. 6. .7. 8. 9. 10. 11. 12. 5. Color and/or finish is a poor Color not flat black Color missing (any area) Not enameled Cracked, chipped or crazed Bubbl
24、es , lumps, imbedded foreign-matter or blemish Hole or blister Coarse or uneven Discoloration or stain, match to approved sample clearly noticeable Not design specified Detail not definitive Detail double struck Edge not trimmed Not pierced where- required Piercing not clean and smooth . Design forc
25、ed X Insignia distorted, bent, or malformed Surface pitted, porous nicked, dented or scratched Any. letter or star missing or not positioned as specified X Any burr, fin, step, rough 0.r sharp edge +8 Metal cracked or fractured X * * * .*. *. * * * * * * * * * Licensed by Information Handling Servic
26、es MIL-I-17578D 84 m 9777706 03836411 2 m . MIL-I-19578D (NU) . Classification Examine Def ct . - Major * Minor 1x1 Design, con- 13. Any area burned or reduced s truc tion and in soldering * workmanship 14. Any solder on face or edge (cont.d) of insignia !x 15. Excess solder on back not removed X 1.
27、 Not type specified IV Attaching 3. Prong bent affecting use 4. Does not function.proper1y 5. Not positioned as specified X device . 2. Any component part missing X * * * V Marking Missing, illegible, not placed inconspicuously . X 4.3.3.2 Dimensional examination The insignia shall be examined for d
28、efects in dimension. Any measurement not within the specified tolerances shall be considered a defect. The sample unit shall be one finished insignia. %e lost size shall be expressed in units of finished insignia. *4.3.3.3 Inspection levels and acceptable quality levels The inspection levels and acc
29、eptable quality levels (AQLs), expressed in defects per 100 units, shall be as follows: Inspection lev1 For visual examination in 4.3.3.1 - II For dimensional examination in 4.3.3.2 S-3 AQL S Major To tal 2.5 15 .O One class 4.0 4.3.4 Examination of packagingreqirements An examination shall be made
30、to determine that packaging, packing, and marking comply with Section 5 requirements of this specification. Defects shall be scored in accordance with the list below. The sample unit shall be one shipping container fvlly prepared for delivery with the exception that it need not be sealed. Defects of
31、 closure listed below shall be examined on shipping containers fully pre- pared for delivery. The lot size shall be thenumber of containers in the end item inspection lot. The inspection level shall be S-2 and the AQL shall be 2.5 defects per one hundred units. Examine Defect Marking (exterior Omitt
32、ed, incorrect, illegible, of improper size, and interior) location, sequence or method of application. Ma terials . . Any component missing, damaged or not as specified. 9 o I Licensed by Information Handling ServicesExamine Defect Workmanship Inadequate application of components, such as: incomplet
33、e closure of container flaps, loode strapping, inadequate stapling, incorrect appli- cation-of tape. Bulging or distor.tion of con- tainers. is more or less than specified. L/ container is more or less than specified. Content Number of .insignia per intermediate container Number of intermediate cont
34、ainers per shipping - 1/ For this defect, one intermediate container from each shipping container in the inspection lot shall be examined. *4.4 Testing of the end item Testing of the completely fabricated insignia shall be performed in accordance with Table III for the character-. istics shown there
35、in. The sample unit for end item testing except for fused prongs, shall be two completely fabricated insignia or eadh grade; for fused prongs, the sample untshall be one insignia. The requirements are applicable to the individual unit and except for fused prng testing, with one determination per sam
36、ple unit; for fused prongs, all prongs- on that item will be tested, however, one defect will be scored regardless of how many prongs on that item fails. The results shall be reported as pass or fail, Except for fused,prong.testing the inspection level shall be S-1 and the AQL shall be 6.5 defects p
37、er hundred units; for fused prong testing, the inspection level shall be S-2 and the AQL 6.5 Dm. *Table III - End item testing Requirement Test Characteris tic paragraph method Functioning of attaching devices Stability of soldered joints Stability of fused ,joints Test for baked enamel 3.3.5 4.5.1
38、3.6.3 4.5.2 3.6.3 4.5.3 3.6.5 4.5.4 i 10 Licensed by Information Handling ServicesMIL-I-17578D 84 m 7779706 038l164b b m 4.5 Tests 4.5.1 Funcfidningf ttachirigdevices The clutch fastener shall be removed from each prong of the attaching device and replaced 10 times, after which it shall not be possi
39、ble to remove the clutch fastener from its prong except by depressing the release wings. 4.5.2 Stability of soldered jints The sample of the insignia to be tested .-shall be placed. in an oven maintained at 1065 P. (+ 5F) for not less than 15 minutes. While at the specified temperature, the-insignia
40、 shall be lifted by the smaller of the soldered parts and the soldered area shall be examined for evidence of separation of the parts. *4.5.3 Stability f elecfronically fused joints Item to be tested shall be anchored on a horizontal surface. All prongs on each end item shall be grasped at least 1/3
41、 its length above the fused joint and bent thru an angle of 90 degrees (45 degrees to each side of the vertical) until separation occurs. The fused joint shall then be examined to determine compliance with 3.6.3. A bending tool in the form of 45 degrees template may be used for this test provided th
42、e prong is gripped at least 1p3 its length above the fused joint. *4.5.4.Tst for baked en-el Draw a knife edge across the face side of the specimen making four parallel scores one sixteenth inch apart. Repeat thls process drawing the knife edge this time perpendicular to the previously scored lines,
43、 making small blocks in the finish. No flaking or chipping of the small blocks shall occur. 5. PACKAGING 11 Licensed by Information Handling Services5.1 Preservation-packaging Packaging shall be level A or C as specified (see 6.2). *5.1.1 Level A A single or pir of insdgnia shall be mounted on a whi
44、te sulfite card with the clutch fasteners attached. . The card shall be cut 2 4 inches square and have a ginimum thickness of 0.011 inch, The mounted Insignia shall be individually packaged in a snug-fitting transparent polye- thylene bag having a minimum thickness of 0.002 inch. All seams and closu
45、res shall be effected by heat sealing. Prior to.or during the heat sealing operation, excess air within the bag shall be expelled. Fifty units thus packaged, of one type and class only, shall be placed, with the insignia face to face, in a paperboard intermediate container 7 inches long, 5 5/8 inche
46、s wide, and 2 1/2 inches high, outside dimensions. The container shall conform to type I, variety 1, class A, style 4 of PPP-B-676. 5.1.2 Level C (Commercial packaging) Insignia shall be packaged to afford adequate protection against physical damage during shipment from the supply source to the firs
47、t receiving activity. The package and quantity. per package shall be the same as that normally used by the contractor for retail distribu- tion. I 5.2 Packing Packing shall be level A, B, or C as specified Csee 6.2) 5.2.1 Level A Twelve intermediate containers, containing one type and one class of i
48、nsignia only and packaged as specified in 5.1, shall be packed in a fiberboard shipping container assembled, closed and reinforced conforming to type SF, class weather-resistant, grade Ys, size 1 of HIC-B-17757. Toward the end of the contract, or when there is less rhan?the required amount per conta
49、iner of the same type and class, mixed classes may be packed within the same container. 5.2.2 Level B Twelve.intemediate containers, containing one type and one class of insignia only and packaged as specified in 5.1, shall be packed in a fiberboard shipping container assembled and closed confdrming to type CF, class domestic, grade 275,- size 1 of MX-B-17757, Toward the end of the contract, or when there is less than the required amount per container of the same type and class, mixed cPasses may be packed in the same container
