AIR FORCE GGG-P-61 A (2)-1980 PARALLELS STEEL AND CAST-IRON PRECISION-GROUND《平行线 钢和铸铁精密地面》.pdf

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1、GGG-P-61A AMENDMENT-2 JanuayY 4, i980 SUPERSEDING lUENMWI-1 Januaxy 11, i968 , FEDERAL SPECIFICATION PARALLELS; STEEL AND CAST-IRON PRFXISION-GROUND This amendment, which forms a part of ,Federal Specification GG-P-Gla, dated July 6, 1966, was approved by the Commissioner, Federal Supply Service, Ge

2、neral Services Administration, for the use of all Federal agencies. PAGE 1 Paragraph 2.1: Under !Federal Specification“, add the following: “PPP-P-40 Packaging and Packing of Hand Tools. “PPP-T-1150 Tools and Tool Accessories for Power Driven, Metal and Woodwork-ing Mach- inery, Packaghg and Packing

3、 Of“ Under Wilitary Specification“, delete WILH-15424“ in its entirety. PAGE 2 After paragraph 3.2, add the following paragraph: “3.2.1 Recycled material. Recycled and recovered raw materials should be used to the maximm extent possible in lieu of virgin raw materials as long as these materials do n

4、ot jeopardize the intended use and fully comply with all contract requirements. adversely affect the perfomce or maintainability of individual components or the overall assembly. ?%terials not specified herein shall be of the same quality used for the intended purpose fi comrcial practice. None of t

5、he above shall.be interpreted to-mean that the use of used or rebuilt products will be allowed . I Materials used shall be free from defects which would FSC 5220 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-b - GGG-P-bLA (2) 52 W 7777779 004L112 O

6、 1 GGG-P-6I.A PAGE 2 (cont ) . Delete paragraph 3.7.3 in its entiyety and substitute the following: “3.7.3 Tolerance. For parallels having its opposite surfaces spaced 3Ll6-inch (4.8mess apart, such opposite surfaces shall not deviate from a true plane in excess of O. 002-inch (O. O51 m) . For paral

7、lels havlng opposite surfaces spaced from 3./4 through 3/4-inch (6.4 through i9 m), such surfaces shall not deviate from a true plane in excess of O. 0005-inch (O. 0127 mn) . For parallels having opposite surfaces spaced in excess of 3/4inch (i9 rmn) , such surfaces shall not deviate from a true pla

8、ne in excess O. 0002-lnch (O. 0051 mn) . Parallelism between opposite sides shall be as shown in table II. sides shall be square with each other within 0.0005-inch (0.0127 m). .Type I parallels shall be similar to figure 1, conform to table I, and the tolerance in table II.?! PAGE 4 Adjacent . Parag

9、raph 3.10.1, last line - Delete t18711 and substitute 1165t1. PAGE 6 Delete pamgmphs 5.1 and 5.1.1 along with table M in their entirety and insert the following: “5.1 Preservation, pac and packing. Unless otherwise specified (see 6.2 ), the parallels shal%?;eserved, packaged, and packed in accordanc

10、e with PPP-P-40 and of the requirements of PPP-P-40 to comply with PPP-T-1150“. Military custodians: Arnly-m Air Force - 99 User activities: Navy - UIC, As, SH Preparing activity: Air Force - 99 -Woj ect No .- 5220-0186 U;S. .GOVERNMENT PRINTING OFFICE : 1981 - 341-706/2276 orders for.this publicati

11、on are to be placed with.Genera1 Services AdmMstra- tion, acting as an agent for the Superintendent of Documents. See section 2 of this specification to obtain extra copies and other documents referenced herein. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-