1、MIL-S-12875B L.March_J 969- s UP ERS E u IW $lIL-S-l2875A( 1) 30 June 1958 MI LI TF,RY S PE CI FI CAT I Oi4 SHEES , PERFORATED, METAL This specification is mandatory for use Dy all e- partments ana Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers seven types of me
2、tal perforated sheets. 1.2 Classification. The sheets covered by this specification and the respective base sheet specifications shall be as specified (see 6.2) and are as follows: Type I . - Brass : Class a - Q-B-613 Class b - QQ-B-639 Type II - Aluminum Alloy: Class a - QQ-A-250/2 Class b - QQ-A-E
3、O/ Type III - Tinplate: QQ-T-425 Type IV - Terne Sheet: OQ-T-191 Type V - Sheet Steel: QQ-S-698 Type VI - idickel-Copper Alloy: QQ-14-281 Type VI1 - Steel, Sheet and Strip, Low-Carbon: QQ-S-698 Class a - Hot rolled Class b - Cold rolled *Procurement documents to specify (see 6.2). *Zinc coatings (Fi
4、nisn No. 1.9, MIL-STD-171) FSC 9515 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-S -1 28758 2. APPLICABLE DOCUbiENTS 2.1 Government documents. The following docunlents of the issue in effect on date of invitation for bids or request for propo
5、sal shall form a part of this specification to the extent specifiea herein: S PECI FI CAT I ONS FEDERAL QQ-A-250/2 QQ-A-250/8 QQ-B -6 13 QQ-B-639 QQ-N-281 QQ-S-698 QQ-T-191 QQ-T -425 - Aluminum Alloy 3003, Plate and Sheet. - Aluminum Alloy, 5052, Plate and Sheet. - Brass, Leaded and Non-Leaded, Plat
6、e, Rolled Bar, Sheet and Strip. - Brass, ijaval , (Flat Products) , Plate, Bar, Sneet and Strip. - Nickel-Copper-Alloy Bar, Plate, Rod, Sheet, Strip, Ni re , Forgi ngs and Structural and Speci al Shaped Sections . - Steel, Sheet and Strip, Low-Carbon. - Terne Sheet (Long and Short Ternes). - Tinplat
7、e (Hot Rip and Electrolytic). MI L I TARY MIL-C-3993 - Copper and Copper Base Alloy Kill Products, Packaging of. STAN DARDS MI LI TARY MIL-STR-105 - Sampling Proceciures and Tables for Inspection by MIL-STD-129 - Marking for Shipment and Storage. MIL-ST-163 - Steel Mi 11 Proclucts Preparation for Sh
8、ipment and MIL-STD-171 - Finishing of !Wal ana Nooci Surfaces. NIL-STO-649 - Aluminum and liagnesiuni Products Preparation for Attributes. Storage. Shipment and Storage. (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement func
9、tions should be obtaineu from the procuring activity or as directeci by the contracting off i Cer. ) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-L2875B 75 m 7777906 OLL6326 I m KI L -S - 1 2 3 7 5 B 2.2 -_. Otherpublications. - The follow
10、ing document forms a part of this specification to the extent specified herein. cated, the issue in effect on date of invitation for bids or request for porposal shall apply. Unless otnerwise indi - UIY I FORM CLASS I FI CAT I OiJ COiyIi4I TTEE Uniform Freight Classification (Application for copies
11、of these rati ngs, rules and regulations should be addressed to Uniform Classification Conmi ttee, 202 Union Station, 516 West Jackson Boulevard, Chicacjo, Illinois 6060b.) 3. REQUIREMENTS 3.1 Material. All materials used in the manufacture of the sheets shall conform to the specifications and appli
12、cable drawings forming a part of this specification (see 6.2). 3.2 Flanufacture. The sheets shall be manufacturea as specified on the appl i cable drawing and procurenent docurnent . 3.3 Perforations. -.- 3.3.1 tions shall be as specifies on the applicable drawing or procurement document. Size and a
13、rrangement. The size and arrangement of the perfora- 3.3.2 Ifixerfections. .- -_- The perforated sheets siizll be kept in the same condi ti oni n whi ci7 tne unperforated sheets were recei ved (see 3.5) . 3.4 Unperforated sheet. 3.4.1 -, Size. The size of the sh2ets shall be as specified in the mate
14、rial specification (2.1) or procurenicnt ciocumiit. Tolerances in sizes alloweci in the niaterial specifications shall apply to the per- forated sheets furnished under this specification. 3.4.2 II- Thickness. The thickness of the unperforated sheet shall be as specified in the material specification
15、 and procurenent document. 3.5 WorkmansJji. The perforated sheets shall be free froiil foreign matter (dirt,il or grease) and damage such as cracks, or deformation which could affect their use. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-
16、128756 95 7797706 0116327 3 MI L -S - 1 2 87 5B 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. 4.1.1 Suppliers responsibilit , Unless othervise specified in the con- tract or purchase order, the supp + ier is responsible for the perforiiance of all inspection requirements as spec
17、ified herein. Except as otherwise speci- fied in the contract or order, the supplier niay use his own or any other facilities sui table for tne performance of the inspection requi reinents speci - fied herein, unless disapproved by the Governnent. The Government reserves the right to perform any of
18、the inspections set forth in the specification where sucn inspections are deemed necessary to assure supplies and services conform to specified requirements. 4.1.2 Ob jecti ve evi Qence. The suppl i er s ha1 1 provi de ob jecti ve evi - dence acceptable to7h-e-cKtracting offi Cer that the requi reni
19、ents of 3.1 and section 5 for which specific inspection has not been provided in this specification have been satisfied. 4.2 - Qua- - conformance i nslecti - - on. 4.2.1 Lotting. A lot shall consist of tne perforated sneets pro- duced by one manufacturer, at one plant, from the same materials: under
20、 essentially the same manufacturing concii tions. i-lo:./ever, no more than one lot of unperforated sheets shall be representeu in any one lot of finished perforated sheets. 4.2.2 Sampling for examination. - Sampling shall be c&ducted in ac- cordance with MIL-STD-105. 4.2.3 Inspection - procedure. 4
21、2.3.1 For examination. -.-_ Sample perforated sneets shall be examineci in accoraance with the classification of defects anu l4IL-ST-lLi5. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PiIL-S-122758 4.2.3.2 - C1 assi fi cati on of defect?. (a) S
22、heet, perforated, me= (Gwg as specified _._ (see 6.2). Defects Categories - Cri ti cal : itone def i ned -_- Iria j or : AQL 1.0 percent defective 1 o1 1 o2 1 03 104 1 O5 1 U6 Perforations missing, incomplete, or wrong size Perforations incorrectly located Sheet size incorrect Sheet tiiicktiess inco
23、rrect irurrs or rough ecices Workriiansiiip (3.5) - i4i nor : 20 1 AQL 2.5 percent defective Protective finish missino (wnen applicable) 5. PREPARATIOiI FOR DELIVERY 5.1 Preservati ondackaoi ng anci Dacki nq. Perforated sheet of typz orderedw6.2)shal -be prepEdTr-dFlivery in the level specified (see
24、 6.2) as applicable as noted beow: Type I - In accordance witn ML-C-3993 Type II - In accorciance with idL-STD-649. Type III to VI1 - In accordance with i4IL-STZ-163. 5.2 - Plarkinq. -L contract or order shi ppi iig containers siia1 1 be marked i ti accorance wi tn WIL-STO-129. In aduition to any sp
25、ecial markina required by tilie 6. NOTES 6.1 -_-_- Inteiicied -_-_ use. Yiic Eietal perforated sheets are for use in the manufacture of canisters : gri 11s , strai tiers and sirii 1 ar i tenis. 6.2 Orderi ny kata. Procurement documents chou1 d speci fy the fol - 1 owi ng : (a) The title, number and
26、date of this specification, (b) The title, number and aate of the applicable Yrawing. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-12875B 75 9 777970b OLL6327 7 W MIL-S-1287SB (c) (d) (e) The size and thickness of unperforated sheet if not o
27、n The type and class sheet required. The level of preservation, packaging and packing required. drawing . Custodians : Preparing activity : Army - LIU Navy - SH Revi ew acti vi ty : Navy - SH, AS, OS User i nteres t : Amy - ME, MI, GL, KR Amy - MLi( EA) Project do. 9315-0098 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
