1、F-43-aG GGG-B-LZLB 52 m qvwc/4 0043447 rn . A ! GGG B 121b -. - _I_-_.-_ - - June 4, 1964 SUPERSEDING ht. Fed. Spec GGG-B-00121a(GSA-FSS) October 28, 1963 FEDERAL SPECIFICATION BAR, SINE; PLATE SINE (AND FIXTURES) Clris specification was approved u tlie Bomniissioner, Federal Supply Serv- (ce, Gette
2、rall Xercices Admiidstration, for tlie tise of all Federal agencies. .1. SCOPE AND CLASSIFICATION 3.1 Scope. This specification covers re- quirements for sine bars, plates, and fistures. They we for use in inspection and layout work. 1.1.1 Fede?-ai? specif“at2on covemge. Fed- em1 specifications do n
3、ot include all varieties of t.he commoclit as indicated by the title of the specification, or which are commercially avail- able, but are intended to cover only those geii- erally used by the Federal Government. 1.2 Classification. 1.2.1 Xypes, grades, and classes. Sine bars, plates, and fixtures co
4、vered by this specification shall be of the following types, grades, and classes, as speced (see 6.1) : Type L-Sine bars, Grade A.-Laboratory. Class 1.-Lapped. Class 2.-Groiiiid. Grade B.-Commercial, Class 1.-Lapped. Class 2.-Ground. Type 11.-Sine plates. Grade A.-Laboratory. Class 1,-Lapped. Class
5、2.-Grouiicl. Class I.-Lappecl. . Class 2.-Ground. Type 111.-Sine bar fixtures. Grade A.-Laboratory. Class 1.-Lapped. Class 2.-Ground. Grade B.-Commercial. Class 1.-Lapped. Class 2.-Ground. Grade A.-Laboratory. Grade B.-Cominercid. Type N.-Sine plate fistures. Class 1.-Lapped. - General Specifica- ti
6、on. rUlta.?y Specifications : ;ILGP-ll-PreserT.atioii* 3ethods of. 4.1 Sine bur. For any operating setting, including clamped settings, parallelism of cyl- inder axis to the working surface of the base shall be maintained mithin the applicable tol- erance specified (see column 4, table I or 11). 3.7
7、.4.2 Bases. Reference surfaces of bases of sine bar fixtures shall be lapped, ground, or scraped as specified (see 6.1), flat and parallel wit-hin t.lie applicable tolerank specified (sm column 2, table I or II). Specific tolerances shall apply to all areas- mithin one-sixteenth inch from t.he edges
8、 of the finished surfaces. 3.7.4 Accuracy. 3.7.5 Shes. Sine bar fixtures shall be fur- nished in the sizes specified in the invitation for bids (see 6.1). 3.8 Type IV, grades A and B, classes 1 and 2 sine plate fixtures. 3.8.1 Consti*uct2m. Type IV sine plate fix- tures shall consist of a type II si
9、ne plate and a base (see figure 4). Construction shall be such as to provide for smooth adjustment of the sine plate, and if provided with clamping means, construction shall be rigid when sine bar is clamped posit.ion above working surface of the base. In the case of hinged Mures, the diameter of th
10、e pivot cylinder inay differ from that of the cylinder at the free end. FIGURE 4.-Type IV, sine plate fixtures. 3.8.2 Base nzatewhl. Material for sine plate fixture bases shall be in accordance with 3.7.2. 3.8.3 Hardness. Hardness of sine plate fix- ture bases shall be in accordance with 3.7.3. 3,.8
11、.4 Accu?my. Accuracy of she plates for sine plate fixtures and bases for sine plate fix: tures shall be in accordance trith 3.7.4.1. and 3.7.4.2, respectively. 3.8.5 Sizes. She plate fixtures shall be fur- nished in the sizes specified in the invitation for bids (see 6.1). - 3.9 Accessories. Accesso
12、ries for sine bars, plates, or fixtures shall be as specified in the invitation for bids (see 6.1). 3.10 Tolerances for special sizes. For sizes smaller than 5 inches, tolerances for the 5- inch size of the designated grade shall apply. Provided by IHSNot for ResaleNo reproduction or networking perm
13、itted without license from IHS-,-,- / GGG-B-L2LB 52 E 7777774 0043504 b GGG-B-12lb For sizes above 5 inches, other than 10-inch ancl 20-inch sizes, applicable tolerances shall be ob- tained by straight line interpolation between the values in the table or by extrapolation on the straight lines deter
14、mined by the IO-inch and 20-inch values in tables I and II. 3.11 Case, Sine bars and sine plates shall be furnished with cases of wood or other suit- able material, with hinged cover, having metal hinges and clasps. The case shall be so designed that the sine bar, or plate shall rest securely on fel
15、t or other suitable material. 3.12 ddentification of product. 3.12.1 Chil agencies. Sine bars, plates and fixtures shall be marked in a plain and per- manent manner with the manufacturers name or trademark of such known character t,hat the source of manufacture may be readily deter- mined. Special m
16、arking, as specified in 3.5.4.4 md 3.6.4.4 shall be provided for grade A sine ham and sine plates. 8.12.2 Hilitary agencies. Sine bars, plates and fixtures shall be marked for identification in accorda.nce PPP-B-676 ; or ;to PPP-B-636, style and type optional. The wrapped fixture shall be packaged a
17、s specified herein, r Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GGG-B-LZLB 52 7777774 0043506 T W GGG-B-12lb 5.1.3 Level C. Sine bars, sine plates, and fixtures sliall be preserved aiid packagecl in accorclance with t.he suppliers commercial pr
18、actice. 5.2 Packing 5.2.1 Levez A. The sine bars, sine plates, ancl fistiires, piesemecl ancl packagecl as speci- fied in 5.1.1, sliall be packed in wood cleated fiberboard, cleated plywood, nailed wood or wireboiuicl boxes conforming to PPP-B-591, PPP-B-GO1 (domestic type), or PPP-3-621, respectidy
19、. Tlie gross weight of the boxes sliall not exceed approshnately 200 pounds. 5.2.1.1 Case liners. Shipping containers sliall be prouidecl with case liners coiifoiming to MIL-L-10547. Case liners sliall be closed ancl sealed in accordance with the appeiiclis to RIILL-10547. 5.2.2 Level B. The sine ba
20、rs, sine plates, ancl fuitures, preseryecl ancl packagecl as speci- fied in 5.1, sliall be packed in a close-fitting box coiiforiniiig to one of tlie followiiig at the option of the coiit.racto : Spccificatiott Tjipc or class PPP-E-621 _-_- Class 1. PPP-R-601 _ Domestic trpe. PPP-B-636 _ Tjpe I, cla
21、ss 1. The gross weight of tlie wood boxes sliall not exceed 150 pouiids, ancl tlie fiberboard boxes shall not exceed the n-eiglit liiiiitatioii of tlie box specific a t 1011. 5.2.3 JeweZ C, Sine bars, sine plates, and stures &all be packed in a manner to insiire acceptance by common carrier aiid saf
22、e delivery at destination. Shipping coiitsiiiers shall con- form to the rules or regdations of carriers as applicable to the mode of transportation. 5.3 Marking, 5.3.1 CzUil agencies. In addition to any special iiiarkiiig required by the contract or order, interior packages ancl e.xterior sliipping
23、containers sliall be marked in accorclaiice with Fed. Std. No. 123. 5.3.2 Military agencies. In addition to any special marking required by the contract or order, interior packages aiid exterior contltinerh shall be marked in accordance with itIIL-STD- 129. 6. NOTES 6.1 Ordering data. Purchasers sli
24、oulcl es- ercise any desired options off eecl lierein, ancl procurement clocumeiits slioulcl specif y the (a) Title, number, ancl date of this specifi- (6) Kame, type, grade, ancl class of item (e) Size (see 1.2.2). (d) Nominal sizes (see 3.5.5 ancl 3.6.5). (e) Specify working surface required (see
25、3.6.1). (f) If accessories attacliiiieiit is not required (see 3.6.1.1.). (y) Finish of reference surfaces of bases (see 3.7.4.2). (IL) Accessories for sine bars, plates, ancl fis- tiires, if required (see 3.9). (i Ligliteiiiiig holes, if procuriiig agency option (see 3.13). (i) Levels of preserrati
26、oii, packaging, aiid packing (see section 5). (k) Barking, if different (see 5.3). 6.2 .Transportation description. Trans- portation descriptions aiid minimiini yeiglits applicable to this commodity are : following : cation. requirecl (see 1.2). Rail : Tools, iiot otlierwise indexed by iia.nie. Carl
27、oad iiiiiiimiim weight 30,000 poimds. iuotor : Tools, not otherwise iiiclexed. Trickload miiiimnin weight 30,000 pounds, subjeck to Ride 115, National Motor Freight Classific a t 1011. Preparing activity: GSA-FSS MILITARY CUSTODIANS : Army-MU Naw-Weps Air Force-MAA U.S. Government Printing Office : 1964 Copies of this specification may be purchased for 5 cents. .c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
