1、GGG-G-61 AUGUST 25, 1932 FEDERAL STANDARD STOCK CATALOGUE Section IV (Part 6) FEDERAL SPECIFICATION FOR GAGES; PLUG AND R1NG;PLAIN AND THREAD This specitlcation was approved for promulgation by the Federn1 Speciflcstions Board on Au ust 23,1932, for the use of the departments anil independent estab-
2、 lishments of (by fine pitches,r “go” and not go,” above $ to and including 435 inches; (c) coarse pitches, “not go” only, above to and including 4j4 inches. A thick flanged type with two adjusting slots for al1 “go” coarse pitch gages, above to and including 4% inches, The dimensions of thread ring
3、 gage blanks in the range from No, O to 4% inches, inolusive, and of parts for the thread ring age lockin device, shall be in accordance with Tables XVII, XVIIf, XIX, an8 xx, E-ab(2). Gaging dimensions and tolerances, lhread ring gages.- Thread ring gages shall be class X in accordance with toleranc
4、es as specifled in Table XVI unless otherwise ordered. See note 1-2. Thread setting plugs shall be used to govern the size of thread sing gages. The gaging dimensions of thread ring gages and setting plugs shall be as follows: EBb(2)s. Angle of thread.-The included angle of thread shall be 60 unless
5、 otherwise specified. E-Sb (2) b, Pitch.-The pitch shall conform to the threads per inch Bpecified in the order. E-2b(S)c. Major diameter.-A relief shall be provided at the root of the “go, ring gage, the width of which shall be not greater than one-eighth of the pitch. A relief shall be provided at
6、 the root of the “not go” ring gage, the width of which shall be approximately one-fourth of the pitch. See Figure 6. The maximum major diameter of the thread setting plug for the ergo“ ring gage shall be the maximum major diameter of the screw to be gaged. The minimum major diameter of the thread s
7、etting plug for the “not go” gage shall be the minimum major diameter of the screw to be gaged. E-2b(2)dB Pitch diameter.-The pitch diameters of thread setting plugs or ring gages shall be the maximum pitch diameter of I Speciflc information as to the meaning of the terms “he pitches” and “coarse pi
8、tches” 88 used above is g!ven ln the footnote to Table XVII. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the screw to be gaged. The pitch diameters of “not go” thread setting plugs or ring gages shall be the minimum pitch diameter of the screw to
9、 be gaged. E-2b (2)e. Minor diameter.-The maximum minor diameter of the “go” ring gage shall be the minimum diameter specified for the tapped hole to be gaged. The minimum minor diameter of the rnot go” ring gage shall be at least 0.0002 inch greater than that specified for “go” ring gages. F. METHO
10、DS OF INSPECTION. F-l. Finish of gaging surfaces.-Gaging surfaces shall be inspected visually as to seams, cracks, scratches, rust spots, and other defects which may materially affect the life of the gage. F-2. Gaging dimensions.-The gaging dimensions of all gages for which tolerances are specified
11、herein shall be measured. The accu- racy of such measurements shall be controlled by comparison with dimensional standards which have been certified by the Bureau of Standards. F-2a. For measurement of the pitch diameter of thread plug gages, wire methods shall be used. (Such methods are described i
12、n Aqpendix 2 of the 1928 Report of the National Screw Thread Corn- mission, Bureau of Standards Miscellaneous Publication No. 89.) In measuring the pitch diameter of screw thread gages by means of wires, and in measuring the wires themselves, the same contact pres- sure shall be used, and wires shal
13、l be measured between a flat contact and a cylindrical contact 0.760 inch in diameter. Unless otherwise specified a contact pressure of 1 pound shall be used for all wires and gages for pitches 80 threads per inch and coarser. F-2b. The pitch diameter of thread ring gages-that is, the ad- justment o
14、f size-shall be determined by the fit of th0 ring gage on thread setting plug. F-3. Taper lock handles and gaging members.-The taper shankla and handles of gages of taper lock design shall be inspected by means of gages made in accordance with Tables XXI and XXII. G. PACKAGING, PACKING, AND MARKING.
15、 G-1. Packaging.-In the shipment of gages, extreme precautions shall be taken against both corrosion and damage by contact with other gages during transit. Ml defining steel surfaces shall be greased and protected with waxed paper. Newspaper, mapping paper (unwaxed) or excelsior shall not be allowed
16、 to come into con- tact with gaging surfaces. Small gages suitably wrapped may be separated by newspapers, excelsior, etc. Heavy gages shall be rigidly fastened in place in a strong, rigid container E;6 that no movement is possible. Plain plug and ring gages shall not be shipped mated. When large th
17、read-ring gages are shipped with their master or setting thread-plug gages, mating is desirable as a means of protecting the plug threads against damage. In such cases a non-acid grease shall be used, such that electrolytic corrosiqn between the mating gage surfaces will be prevented. Provided by IH
18、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. GC-B. Packing.-Unless otherwise specified, gages shall be delivered in standard commercial containers so constructed as to insure accept- ance by common or other carriers for safe transportation at the lowest rate
19、to the point of delivery. (3-3. Marking.-Unless otherwise specified, shipping containers shall be marked with the name, size, and quantity of gages contained therein, as defined by the contract or order under which We shi - ment is made, the name of the contractor, and the number of t % e contract o
20、r order. :. REQUIREMENTS APPLICABLE TO INDIVIDUAL DEPARTMENTS. H-l. The following departmental specifications of the issue in effect on date of invitation for bids shall form a part of this speci- fication: H-la. Navy Department, General Specifications for Inspection of Material, copies of which may
21、 be obtained without cost on appli- cation to Bureau of Supplies and Accounts, Navy Department, Washington, D. C. NOTES. 1-1. Terminology.-The following definitions are intended to clarify the meaning of certain technical terms employed in this specificahion: A plain cylindrical plug gage is a compl
22、ete unthreaded internal gage of single or double ended type for the size control of holes. It consists of handle and gaging member or members, with suitable locking means. A progressive cylindrical plug gage is a complete unthreaded internal gage consisting of handle and gaging member in which the “
23、go” and “not go” gaging sections are combined in a single unit secured to one end of the handle. A thread plug gage is a complete internal thread gage of either single or double ended type, comprising handle and threaded gaging member or members, with suitable locking means. The gaging member is tha
24、t integral unit of, a plug gage which ia accurately finished to size and is employed for size control of the work. In taper lock gages, the gaging member consists of LL shank and a gaging section. The gaging section is that portion of the gage which comes into physical contact with the work. In the
25、plug gage range above 1.510 to and including 4.510 inches, the gaging section is identical with the gaging mem6er. The shank (applied to taper lock ages only) is that portion of the gaging member which is employe B for fixing the gaging member - - to the handle. The term “taper lock” designates that
26、 construction in which the gaging member has a taper shank, which is forced into a taper hole in the handle. This design is standard for plug gages in the ran e above 0.059 inch to and including 1.510 inches, and is optional B or plain cylindrical and thread plug gages in the range above 1.510 inche
27、s to and including 2.510 inches, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted wi
28、thout license from IHS-,-,- FEDERAL STANDARD STOCE CATALOGUE (Zrq., 198) GGG-(241-9 (Section IV, Part 5) Range: Above 0.059 to and including 1.610 inch; optional above 1.510 to and including 2.510 inches I3 Range: Above 1.510 to and including 2.510 inches Range: Above 2.510 to and inoluding 4.510 in
29、ches FIGURE 1.-American gage design standard plain cylindrical plug gages, details of construction l. GO” gaging member. 2. “Not go” gaging member. 8. Progressive gaging member. 4. Shank. 6. Taper lock handle. 6. Drift hole (or slot). t. Qo” gaging member. 8. “Not go” gaging member. 127577-33-2 10.
30、Handle for reversible gage, 9. Progressive gaging member. 11. Socket head screw, 12. Locking prong. 13. Lockkg groove. 14. Cross-pin hole. 15. Hexagon head screw. 16. Web. I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f-lo FEDERAL STANDARD STOCK
31、CATALOGUE (Section IV, Part 6) I d % h- d Q t, 1 d z h- .i I Q o 1 T T Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- FEDERAL STANDARD STOCK GATALOGUE (AUO., 193gl GGG6-61-11 (Section IV, Part 6) 8 z d &xxxk#3. Y -. Provided by IHSNot for ResaleNo
32、reproduction or networking permitted without license from IHS-,-,-C QGGG-61“12 dug., 1938) FEDERAL STANDARD STOCK CATALOGUE (Seotion IV, Part 6) t, “ rq Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FEDERAL 8TANDARD STOCK CATALOGUE (Aug., 132) - GG
33、GG-61-13 (Section IV, Part 6) LI. O B z L?.U Or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- . -. GGG-G-bY-52 W 7777774 OClq435q=m GGG-C-61“14 (Am, 1888) FEDERAL STANDARD BTOCK CATALOGUE (Section IV, Part 5) lq g8 *o o Cs III III III III III III
34、III III III II, III III III Il Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(Section IV, Part 5) Y a ci 8 E? e R qs E 3ZISllltra -3 .“ N a, Q$j R Q 1 L 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
35、-,-,-(Section IV, Part 5) III Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-h 5 V .I FI U O 127577-33-3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FHDERAL STANDARD STOCK CATALOGUE (Seotion IV,
36、Part 6) c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GG(3-G61“20 (Au&, i0SB) FEDERAL STANDARD STOCK CATALOGUE (Section IV, Part 6) TABLEI VIII.-Pla
37、in ring gages, range above 0.060 to and including 1.61 O inche8 GO NOT GO Range Qeneral dimensions Ring size No. Above- -1-1- Inches Inches Inches O. 160 .240 .365 136 %e .610 136 W I I “Not Length groove *. go“ of bush- width m F Radius 1.1- 1 Bushings are Me inch longer than ring thickness, but at
38、e ground flush after hole is finished. * Sizes 3, 4, and 6 are sold. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FEDERAL STANDARD STOCE CATALOGUE . (AW., 1938) GGGG-61-21 (Seotion IV, Part 5) B “B Provided by IHSNot for ResaleNo reproduction or n
39、etworking permitted without license from IHS-,-,-Range: No O to and including 1.510 inches ? I 14 Range: Above 1.610 to and including 2.610 inches Range: Above 2.510 to and including 4.510 inches FIGURE 4.-American gage design standard thrmd plug gages, detfiils of constructlon 1. “Go* gaging member
40、. 2. “Not go” gaging member. 4, Shank. 6. DrPft.hole (or slot). 8. Ta er lock handle. 8. “Not go” gaging member. 7. tcGo” gaging member. 10. Handle for reversible gage. 12, Looking prong, 11. Socket head screw, 14. Cross-pin hole. 13. Locking groove. 16. Web. 15. Hexagon head screw. Provided by IHSN
41、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FEDERAL STANDARD STOCK CATALC (Section IV, Bart 6) d B N- Q b UE GGG-6-61-23 (AUO., less) O*CO Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FElDERAL x Y O w x 9 F? e
42、- *% 8 -3 b R 2 STANDhRD STOCK CATALOGUE (Seation IV, Part 6) H Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O u M z 8 9 t, R sem III 101010 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QGG-Q-6&
43、“6 (dug., iwa) FEDERAL STANDARD BTOCK CAI r0 f f P * ta (Eleotion IV, Part 6) 1 n 4 n P Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FEDERAL STANDARD STOCK CATALOGm (uq., lgsfi) GGG-G-61-27 (Section IV, Pert 5) x O“ Provided by IHSNot for ResaleNo
44、 reproduction or networking permitted without license from IHS-,-,-GGG-G-61 52 m 9399974 00411373 O 9 GGGGI-61“ZB ( Auvq 18Sk) FEDERAL STANDARD STOCK CATALOGUE (Section IV, Part 6) s o 3 O N W f N W cct 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-B d z B h- d L E 1 a I, I, L U Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FEDERAL STANDARD STOCK CATALOGUE (Seotion IV, Part 6) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
