1、A-A-2318 51 777977V 0042678 1 W A-A-231 8 September 27, 1985 ?COMMERCIAL ITEtd DESCRIPTION FILE, HAND (AMERICAN PATTERN), ROUND, REGULAR The General Services Administration has authorized the use of this commercial item description in preference to Type XVI, Class 1, Styles A, B, and C of Federal Sp
2、ecification GGG-F-325. This commercial item description covers hand files used for enlarging circular openings, elongating holes, and similar purposes. . Salient characteristics: Mater i al : Taper : Des i gn : Tang: Teeth: Marki ng : Workmanship : Carbon alloy steel. At least one-third of the lengt
3、h to the point. Furnished in bastard-cnt, second-cut, or smooth-cut as shown in table. Bastard-cut files in lengths 4 inches through 10 inches shall be single-cut (one set of parallel cuts on the surface) or double-cut (two sets of parallel cuts on the surface, one set crossing the other); lengths 1
4、2 inches through 16 inches shall be double-cut. Second-cut files shall be single-cut, except for the 14 inch length which shall be double-cut. Smooth-cut files shall be single-cut. wood handle. Tempered to a maximum hardness of 45 on the Rock- well C scale at a point approximately miavay of its leng
5、th and width. Of a conventional shape and size suitable ?or attachment to a Uniformly cut or etched and of uniform height throughout the fully cut portion. Cutting surfaces hardened to a uniform hardness. The distance between the heel and point of the file, excluding the tang, shall be hardened to n
6、ot greater than 68 nor less than 64 on the Rockwell G scale, Free from decarburization and britteness. a Marked with the country of origin and the name of the manufactur- er or with a trademark of euch known charaeter that the source of manufacture may be readily determined. The teeth of the file sh
7、all be vel-defined, sharp, and uniform in height and form. There shall be no evidence of rust or other defect which may impair servicedbilityq durability, or appearance. FSC 5110 / THIS DOCUMENT CONTAINS a PAGES ? Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
8、rom IHS-,-,-A-A-231 51 = 7977979 00L12b77 3- A-A-231 8 National Stock Number 5110-00-234-6545 5110-00-234-6548 51 10-00-234-6551 51 10-00-234-6554 5110-00-234-6557 5110-00-234-6560 5110-00-239-6898 51 10-00-806-1 O00 51 10-00-234-6549 51 10-00-234-6552 51 10-00-234-6555 5 I 1 0-00-203-4692 51 10-00-
9、203-4647 5110-00-234-6550 51 10-00-234-6553 5110-00-234-6556 5110-00-234-6559 5110-(20-234-6562 23% 4 6 8 10 12 14 16 4 6 8 IO 14 4 6 8 10 12 14 Diameter at Number of teeth A . Min. Max. largest seotion per inch Inch Bast ar d-cut 37 44 26 . 31 21 25 19 21 16 19 15 18 . 17 3/16 1 /4 5/16 3 /8 1 /2 5
10、/8 . 3 /4 15 Second-cut 3/16 46 53 34 39 28 32 1 /4 26 29 5/16 21 23 3 I8 5 /f3 Smooth-cut 58 65 46 51 39 43 36 3? 32 35 30 33 Allowable distortion (maximum) Inch 0.01 o .o10 .o20 ,025 .O25 .O30 .O40 .o1 o .o10 - .o20 ,025 ,030 .01.0 ,010 .o20 .O25 ,025 ,030 kngth dimension: Measured from the point
11、(free or front end) to the heel (junction of the tang with the body of the file) and have a tolerance of plus oc minus 1 /8 inch. Tolerance: Diameter (A) - plus or miqus 1/32 inch. Regulatory requirements, In accard4noe with the section 23.403 of the Federal Acquisition Regulations, the Governments
12、policy is to acquire items composed of the highest percentage of recovered materials practicable, consistent with main- taining a satisfactory level of competition without adversely affecting performance requirements or exposing suppliersi employees to updue hazards from the recovered mat er i als. Preservation, packaging, packing, labeling, and marking. The preservation, packag- ing, packing, labeling, and marking shall be as specified in the contract or order. PREPARING ACTIVITY: GSA-PSS 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
