1、 - -. NIL-C-22Li92 53 7977906 0367374 B -il- - - MGC-22492 (Wep ) 9 May 1960 MLITARY SPECIFICATION CVPTER, CLSCLE, SELE-EmXNG Thi+ specification has been approved by the -8ureau of Naval Weapons, Department of the Wavy 1. SCOPE 1.1 -.- accurately cutting holes in various materials (see 3.3.1) and in
2、 very thin metals to a center punched mark without the use of a pilot hole. 1.2 Classification.- as specified (see 6.2): This specification covers circle cutters with a self-centering device, capable of Circle cutters and sebe of cutters shall be of the following types and sets Type I - Circle cutte
3、rs, self-centering Type II - Sets Set 1 - 3/16 through 2i/32 Set 2 - 11b6 through 1-5/32 Set 3 - 1-3/16 through 1-19/32 Set 4 - 1-5/8 through 2-1/32 2. APPLICIIBLE SPECIFICATIONS AM, STANDARDS 2.1- The following specifications and standards of the issue in effect on the date of invitation for bids,
4、forn a part of this specification. SPECIFICATIONS Federal PPP-E-566 PPP-B-585 PPP-B-591 PPP-B-601 PPP-B-6Zt PPP-E-636 PPP-B-676 PPP-T-76 Boxes, Folding, Paperbqard Boxes, Food, IXrebound Boxes, Fiberboard, Wood-Cleated Boxes, Wood, Cleated Plyuocxi Boxes, blood, Nailed and Lock Corner Boxes, Fiber B
5、oxes, Set-Up, Paperboard Tape, PressureSensitive Adhesive, Paper Kater-Fesistant IIIIGP-116 Preservation, Methods of MGB-4229 Boxes, Paperboard, lbtal-Stayed MTLB-10377 Box: Wood, Cleated, Veneer, Paper Overlaid 14ILb10547 Liners, Case, iaaterproof Standards MIGSTD-105 MLSTD-129 (?hen requesting spe
6、cifications and standards refer to both title and number. applicable specifications may be obtained upon application to the Comanding Officer, Naval Supply Depot, 5801 Tabor Avenue, Philadelphia 20, Pennsylvania Sampling Procedures and Tables for Inspection by P.t%ributes larking for Shipment and St
7、orage Copies of Code GDS.) 3. REQUIRE33:IJTS 3.1 grade of high speed tool steel. hen specified (see 6.2), the cutters shall be furnished xith carbide tipped cutting edges, 1hterial.- Unless otherwise specified (see 6.2), the circle cutters shall be made of a high 3.2 X1tinc.- Cutters shall be marked
8、 in a plain and permanent mnner with the manufacturers neme or with a tradeaark of such knoim character that the source of manufacture xay be readily determined. specification nunber. Cases containing sets shall be marked with the item name, type, set number and _- 1 - J- fl -.- THIS BQ%Q;i%igB3T G8
9、i3TA8PS - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M1L-C-22 51 qq77qOb 036q175 T - _ MIGC22492( Wep 3.3 3.3.1 brass and steel shimstock; tenplate paper; hardboard; cork gasket; hard rubber; fiber glass; and o1uminu.n honeyconb. 3.3.2 -.- Cutte
10、rs shell be furnished in sises of 3/16 inch through 2-1/32 inches, outside dimeter, by 1/32 inch incremer,s, as specified (see 6.2). 3.3.3 Death of cut.- Each different size of cutter shall be capbe of accurately cutting holes through various naterials (See 3.3.1) in varying thicknesses up to the ma
11、ximum material thickness as specified in Table I. Type I. Circle Cutters. Self-Centering.- Cutting ability.- The cutters shall be capable of cutting such materiels as metals; plastic; TbJ3J-E I Cutter Size inches 3/l6 +hrough 9/32 5/16 through 13/32 7/16 through 17/32 9/16 through 21/32 11/l6 %hroug
12、h 25/32 13/16 through 2-1/32 Depth of Cut inches nin. 1/32 1/16 3/16 u3 u4 3/* 3.3.4 the noninal sise. of the manufacturers noninal shank size, TolerP.nce.- The outside diameter of the cutter shall be within plus or minus 0,0005 inch of The diameter of the straight shank shall be within plus 0.000 m
13、inus 0.001 inch 3.3.5 free froa excessive burrs and wlthin plus or minus 0.002 inch of the nominal size of the cutter. The cutter shall be capalle of locating the holes to a center punch mark within plus or ninus 0.005 inch (see 4.4.2). 3.3.6 Shanks.- shanks of e dieneter capble of driving the cutte
14、r. furnished dth florse taper shanks. Pcconiliodote on adapter 56th a i/ house coinpactly; and hold securely the component parts. TFBLZ II - Goninonent Parts for Sets Cutters Pdarhrs - Size by 1/32 inch Nmber Shank thber Diemeter (Inches) Inch Set increnents required size required i i 1 1 1 1 3/16 t
15、hru 21/32 16 I/, 2 11/16 thru 1- 5/32 16 u4 3 1- 3/16 thru 1-19/32 / 14 1/1, 4 1- 5/3 thru 2- 1/32 14 u4 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - -_ hIL-C-22q92 51 m 7999906 0369176 L W MIL-C22492( Wep) 3.5 Workmanshiu.- burrs, rust, corr
16、osion, and other defects that may affect their serviceability. 4. QUALITY ASSURANCE PROVISIONS The cutters shall be free from sharp edges, except the cutting edges, free fro2 . 4.1 Unless otherwise specified herein, the supplier is responsible for the performance of all inspection requirements prior
17、 to submission for Government inspection and acceptance. otherwise specified, the supplier may utilize his own facilities or any comercial laboratory acceptable to the Government. Inspection records of the examinations and tests shall be kept complete and available to the Government as specified in
18、the contract or order. Except as 4.2 BaD linr, for lot acceDtance.- 4.2.1 Insrnction lot.- AU circle cutters or sets of cutters of one size or class offered for delivery at one time shall be considered a lot for the purpose of acceptance inspection and tests. 4.2.2 A randon sample of circle cutters
19、or sets of cutters shall be selected by the inspector for visual and dimensional characteristics in accordance with Standard HiL-sTD-105 at inspection level I. The 4.U shall be equal to 1.5 percent defective. 4.2.3 Sampling for accuracy md cuttina tests.- Two cutters shall be selected fro% the seqle
20、 cutters, or sample sets selected in accordance with 4.2.2, end subjected first to the accuracy test specified in 4.4.2 and secondly to the cutting test Specified in 4./+3. pass these tests, then the lot represented by the sanple shall be rejected. 4.2.4 Samplina for drop test of cases.- Two sets of
21、 cutters shall be selected. fro:$ the saqple sets, selected in accordance vth 4.2.2, md subjected to the drop test specified in 4.4.4. If either case fails-the test, then the lot represented by the sample shell be rejected. 4.3 Visual and dimensional exmination.- Each of the smple cutters or each co
22、nponent part of the smple sets selected in accordance with 4.2.2 shell be visually and dimensionally exeniined by the inspector to verify compliance with this specification. component part of the sample sets containing one or more visual or dimerisional defects shall be rejected, and if the number o
23、f defective cutters or sets in any sample exceeds the acce;tance number for that sample, the lot represented by the sanple shell be rejected. Samulins for visual and dimensional insuecm.- If either cutter fails to Any cutter in the sample cutters or any 4.4 Test procedures.- 4.4.1 for the size speci
24、fied to determine confornience 16th 3.3.4. 4.4.2 Accurac. test.- Each sainple cutter selected in accordance with 4.2.3 shall be checked for confornance with 3.3.5. Four center punch narks representing the four corners of P square vhcse side is twice the diameter of the sample cutter shall be accurat
25、ely spaced on e ;nild steel plp.te. The thickness of the plate shall conforin to the mi.nimum depth of cut specified in Table I. sample cutters shall be held in the spindle of a precision drill press and the cutter located over the center punch marks with the centering device of the cutter and the h
26、oles nechined. holes shall be checked for hole size, finish and spacing, spacing shall conform to 3.3.5. 4.4.3 Cuttina test,- The two sempie cutters selected in accordmce with 4.2.3 and used for Yhc accuracy test in 4.4.2 shall be selected for the cutting test. Tne cutters shall cut a totel r,f 5 ho
27、les in a corrosion resistant steel plate et e speed of 70 surface feet per minute and e feed of 0.0015 inch per tooth per revolution. depth of cut specified in Table I. The holes shall conform to the accuracy for surface finish and size specified in 3.3.5. 4.4.4 hou test for cases.- Each sample set
28、selected in accordp.rice with 4.2.4 ond containing the component parts shall be dropped 5 tines in the normal upright position onto a solid concrete floor froz a height of 12 inches. damage which may affect its serviceability, nor any daxage to the contained co:npoqent parts. 5. PREPARATION FOR DELT
29、VERY 5.1 Ceanina. preservation. anilDackagin.- 5.2.1 Level A.- overseas type wood cleated fiberboard, nailed wood, wirebound wo fiberboard boxes shall not exceed the weight limitations of Che applicable box specificakion. 5.2.2 Level B.- Cutters and cutter sets, packaged as specified (see 6.2), shal
30、l be packed in domestic type wood Cleated fiberboard, nailed wood, wirebound wood, cleated plywod Dr wocd-cleated paper overlaid boxes or class 2 fiber boxes conforming to Specification PPP-B-591, PPP-B-621, PPP-B- 585, PPP-B-601, MLB-10377, or PPP-636, respectively, at the option of the contractor.
31、 Box closures shall be as specified in the applicable box specification or appendix thereto. weight of wood boxes shall not exceed 200 pounds; fiberboard boxes shall not exceed the weight limitations of the applicable box specification. 5,2,3 Level C.- manner which will insure acceptance and safe de
32、livery at destination. conply to the Unifora Freight Classification Rules or other regulations as applicable to the mode of transportation. 5.3 !-farking.- interior and exterior shipping container shall be ma.rked in accordance with Standard I4ILSlD-lZg. Cutters and cutter sets shall be preserved an
33、d packaged in accordance with the Cutters and cutter sets, packaged as specified (see 6.2), shall be packed in Caseliners for boxes The gross weight The gross . Cutters and cutter sets, packaged. as specified (see 6.2) shall be packed in a Shipping containers shall In addition to any special marking
34、 required by the contract or order or herein, 6. Noms 6.1 punched layout marks in thin aetals and other materials. or driven by portable powered drills and are particularly adapted to the thin materials comon in oircrdt fabrication. 6.2 Orderiw data.- Procurement docunents should specify the followi
35、ng: Intended use.- Circle cutters are intended to locate and cut holes accurately to center The cutters may be held in iuachine tools (a) (b) (c) (cl) Size required (see 3.3.2). (e) (f) Title, number and date of this specification, Tgpe and set nmber required (see 1.2 snd 3.4.1). if carbide tipped c
36、utters are required (see 3.1). if Horse tapered shank is required (see 3.3.6). If adapter is required (see 3.2.4). 4 _*- I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. - . .“ MIL-C-22LI72 51 7977706 0367178 5 ML- C-22492 ( Wep NOTICE: When Gover
37、nment drawings,specifications, or other data are used for any purpose other than in connection with a definitely related Government procurement operation, the United States Government thereby incurs no responsibilsty nor any obligation whatsoever; and the fact that the Government may have formulated
38、, furnished, or in any way supplied the said drawings, specifications, or other data, is not to be regarded by implication or otherwise as in eny manner licensing the holder or any other person or corporation, or oonveying any right or permission to manufacture, use, or sell any patented invention that may in any way be related thereto. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
