1、MIL-F-4540OA( MU) - 3 July i968 SWERSEDII G MIL-F-45400 ( CmiC) 8 June 1959 MILITARY SPEC1 FI CMION FIM ASSEN3LY, BOICB, 4-POlJiID, Mi5 1. SCOPE 1.1 This specification covers an extensible fin for use with a 4-pound incendiary bomb. 2. APPLICABLZ DOClJWNTS 2.1 Government documents. The following doc
2、uments, of the issue in effect on date of invitation for bids, form a part of this speci- fication : SPECIFICATIONS mmAL uu-P-268 - Paper, Kraft , Untreated , Wrapping. MMM-A-250 - Adhesive, Ikter-Resistant , For Sealing Fiberboard Boxes. PPS-T-76 - Tape , Pressure Sensitive Adhesive Paper , Vater R
3、esistant, For Carton Sealing. STANDARDS NILITARY IiIL-STD-10 -. Surface Roughness , Waviness and Lay. MIL-STD-105 - Sampling Proceures and Tables for Inspec- tions by Attributes. d MIL-STD-129 - Xarking for Shipmsnt and Storage. 3RAT;JIIiGS US ARMY ?&JifIrilIOHS COI&WiD EDGENOD ARSENAL D14-5-3020 -
4、Fin, 4-Lb. Bomb, 325, Bill of Material. FSC 1325 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-45400A 13 W 7779706 030bi17 2 W (Copies of specifications , standards , drawings , and publications required by suppliers in connection with specif
5、ic procurement func- tions should be obtained fromthe procuring activity or as directed by the contracting officer.) 2.2 Oth.er publications. The following docume.nt forms a part of this specification. on date of invitation for bids shall apply. Unless otherwise indicated, the issue in effect UNIFOR
6、M CLASSIFICATION COMMITTEE Uniform Freight Classification (Application for copies of these ratings, rules and regulations should be addressed to Uniform Classification Committee, 202 Union Station, 516 West Jackson Boulevard, Chicago, Illinois 60606. ) 3. REQUIREMENTS 3.1 Materiais and components. 3
7、*1.1 Haterids. All materials cited on Drawing D1-5-3020 or on the subsidiary drawings shall conform to the specifications listed thereon, or to the specific characteristics set forth on the drawings. 3.1.2 Components. Ail components of.the fin shall conform to the specifications and drawings listed
8、on Drawing D14-5-3020 and subsidiary drawings. Ci4-5 -3021. 3,2 Assembly, The fin shall be assembled as specified on Drawing 3.3 Surface roughness. Surface rougnness, specified by symbol on detail drawings. shall comply with MIL-STD-10. 3.4 Preproduction. Prior to the start of reguiar production, a
9、pre- -production lot of fins shall be produced in accordance with this Specification for examination (see 4.3 and 6.1). . The fin shall be free of all foreign matter (oil, such as dents, cracks, and deformation which could affect its use. 2 Provided by IHSNot for ResaleNo reproduction or networking
10、permitted without license from IHS-,-,-MIL-F-q5400A 13 9999906 030b73i 4 = I 4, QUALITY ASSURANCE PROVISIONS h. 1 Responsibility for inspection. 4.1.1 Suppliers responsibility. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the perfor- mance of all insp
11、ection requirements as specified herein. otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the perfomnance*of the inspec- tion requirements specified herein, unless disapproved by the Government. The Government reserves the right to perfo
12、rm any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to specified require- ments * Except as 4.1.2 Objective evidence. The supplier shall provide objective evidence acceptable to the contracting officer that the
13、requirements of 3.1 and section 5 for which specific inspection has not been pro- dded in this specification have been statisfied. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) Preproduction inspection (see 4.3). (b) Quality conformanc
14、e inspection (see 4.4). 4.3 Preproduction inspection. 4.3.1 Sample-. A preproduction sample of 500 fins shall be manu- factured usiq the sane methods, materials, equipment, and processes as will be used during regular production. 4.3.2 inspection procedure. 4.3.2.1 For examination. Three-hundred fin
15、s shall be taken at random from the preproduction sample, and .examined far conformance with the drawings and specifications thereon. z 4.3.2.2 Acceptance/rejection criteria. The preproduction samples, when examined, must.meet the requirements of this specification to be acceptable. The acceptance n
16、umber is zero. The supplier shall ob- tain writtien approval fromthe contracting officer prior to proceeding with regular production. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-4540OA( MU) 4.4 Quality conformance inspection. 4.4.1 Lottin
17、g. A lot shall consist of fins of one interfix number produced during one week, by one manufacturer, froia the sme materials, from the same drawings, under essentially the sane manufacturing con- ditions. 4.4.2 Sampiine 4.4.2.1 For examination. Sampling .shall be conducted in accordance with MIL-STD
18、-10 5. 4-4.3 inspection procedure. 4.4,3.1 For examination. Sample fins snail be examined in accordance with the classification of defects and IdLL-STD-105. 4-4-3.2 Classification of defects. (See inspection data list IDL 14-5-3021 for inspection equipnent requlred to perform the examina- tions spec
19、ified in this section.) (a) Fin, b-Pound bomb, Ml5 , as seinoly (Drawing Cib-5-30-), Categories Defects Critical: Mone defined Ma j or : *lo1 *lo2 103 *lob 105 “106 107 108 109 110 AC& O .25 percent defective Inoperat ive Component missing, incorrect or incorrectly assembled Overall length incorrect
20、 (body) Staking or welding (when applicable) incorrect Safety plunger head incorrectly formed Graphite coating nissing Length ( 5.153) incorrect Safety plunger hole size or location incorrect Tail curl incorrect Inside distance across flats incorrect Il1 Workmanship ( 3.5 ) 4 Provided by IHSNot for
21、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-YSqOOA 13 m 9799906 0306720 2 m I 4.4.3.2 Classification of defects (continued). (a) Fin, 4-Pound bomb, XL5, assembly (Drawing C14-5-3021) (continued) . Categories Ninor : 8201 * Defects AQJ 2.5 percent efective Protect
22、ive finish missing “Components which are not accessible upon final assedoly shall be in- spected prior to final assembly. fin assembly is inoperative if the fins fail to retract when the shaft is depressed into tne body or if the fins fail to spring out upon release of the shaft. tion of the fin ass
23、embly, or hesitancy or slotmess of the fins to extend upon release of the depzessed shaft shall constitute an inoperative aefect. Any jamming, hesitation, or irreguarity of opera- 5.1 Packaging, level C. Tile fin assembly, Drawing C14-5-3021, with the fins retracted, shall have a preformed paper sea
24、aed or seamless tube placed over the fins. The tube shall be a minimum of 2-1/2-inches long and fabricated from 60-pound minimum base weight Kraft paper conforming to grade 33 of W-P-268. Tne seamed tube shall be closed vith a minimum 3/4-inch wide sew using adiiesive conforming to M!vDj-A-25O alter
25、nate the fins, in retracted position, shall be wrapped with Kraft paper, same as used in tuke, and secured in place with pressure- Tile minimum length of the wrap shall be 2-1/2-inches. As an . sensitive tape conforming to PPP-T-, 5.2 Packing, level _1- C, A uniform number of fin assemblies, package
26、d as specified in 5.1, shall be packed to afford protection against damage during direct shipment from the supply source to the first receiving activity for immediate use. Preiglnt Classification Rules or other common carrier regulations applicable to the mode of transportation. Containers used shal
27、l comply with Uniform 5.3 Marking. contract or order, shipping containers shall be marked in accordance with NIL-STD-129. In addition to any special marking required by the 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-454OOA( MU) 6. IJOTES
28、 6.1 Orderina data. Procurement documents should specilfy the following: (a) (b) Special marking required. ( c ) Preproduction. Title, number, and date of this specification. (i) (2) (3) Time Ellloweti for supplier submission of smpes for Govern- Name anti address of test facility and siiipping inst
29、ructions Time require6 for the GoveAment to notify the supplier ment test and evaluation arter award of contract. when testing is performed by the Goverment. whether or not to proceed with production. Custodian : Preparing activity : Army - Mu Am - mm) Project No. 13254311 6 * U. S. GOVERNMENT PRINTIN. JFFICE 196&34LSlO/A*874 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
