1、_- MLIC: 85 25 4 (AS ) 13 June 1981 MILITARY SPECIFICATION CHARGE, LINEAR SHAPED This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE. 1.1 Scope. This specifica
2、tion establishes the requirements for the manufacture and acceptance of a linear-shaped charge, critical item, referred to herein as the charge. 2. APPLICABLE DOCUMENTS. 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal, fo
3、rm a part of this specification to the extent specified herein. SPEC IF I CATIONS MI L ITAY MIL-S-23586 Sealing Compound, Electrical, Silicone Rubber, Accelerator Required. MIL-B-85251 Bomb, Binary Chemical, BLU-80/B. STANDARDS FEDERAL FED-STD-102 Preservation; Packaging, and Packing Levels. Benefic
4、ial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Engineering Specifications and Standards Department (ESSD) Code 93, Lakehurst, NJ 08733, by using the s
5、elf-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-C-85254 13 W 777770b 0364330 7 c % MI LI TARY MIL-STD-109 MIL-STD-1
6、29 MIL-STD-453 MIL-STD-810 MIL-STU-1168 . Quality Assurance Terms and Definitions. Marking or Shpment and Storage. Radiographic Inspection. Environmental Test Methods. Ammunition Lot Numbering. MIL-STD-45662 Calibration System Requirements. PUBLICATIONS . Naval Sea Systems Command (Code Ident 10001)
7、 WS -5 O0 3 a HNS Explosive. (Copies of specifications, standards, drawings, and publieations required by contractors in connection with specified procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The allowing do,
8、cuments form a part of this specification to the extent specified herein. cated, the issue in effect on-date of invitation or bids or request for proposal shall apply. DEPARTMENT OF TRANSPORTATION Unless otherw-ise indi- Code o Federal Regulations 49 CFR 171-178 Transportation. (Application for copi
9、es should be addressed Lo the Superintendent of Documents, Government Printing Office, Washington, D.C. 20402.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C -85 254 (AS) AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM A 606-75 Steel Sheet an
10、d Strip, Hot-Rolled and Cold-Rolled, High-Strength, Low-Alloy, with Improved Corrosion Resistance. (Application for copies should be.addressed to the American Society for Testing and Matersals, 1916 Race Street, Philadelphia, PA 19103.) 3. REQUIREMENTS. 3.1 Item description, The charge is a silver s
11、heath containing 25. O +O .5, -0. O grains per foot (gr/ft) of hexanitrostilebene (HNS) , Type II, Grade A explosive recrystallized from an approved organic solvent system (see Figure 1). 3.2 Characteristics. 3.2.1 Performance. 3.S.1.1 Detonation velocity. The detonation velocity shall be not less t
12、han 6,000 meters per second. 3.2.1.2 Explosive force. The charge at a stan010 IN. P JINDICATED DIMENSIONS TO BE EQUAL WITHIN 0.008 INCH . FIGURE 1. Change configuration (cross section). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE II. Chem
13、ical composition. Percent Elements I Minimum Maximum t Carbon Mangane se Nickel Phosphorous Sulfur Silicon Copper I Chromium . I - o .20 O .O7 O .25 O .25 0.30 - - I 0.12 0.50 0.65 0.15 O .O5 0.75 0.55 1.25 NOTE: CORTEN B conforming to ASTM A 606, Type 4, cold rolled, meets the above requirements. 3
14、.2.1.3 Minimum bend radius. The charge shall withstand being bent to a 1-inch radius without visual signs of cracking or split- ting of the metal sheath or degradation of performance. 3.2.1.4 Low temperature. The charge shall withstand a low temperature of -62 degrees Celsius (OC) for 336 hours with
15、out . degradation of performance. 3.2.1.5 High temperature. The charge shall withstand a high temperature of +74OC for 336 hours without degradation of perf ormance. . 3.2.1.6 Impact resistance. The charge, when mounted on a steel plate, shall not detonate, deflagrate, or burn when impact with a - 2
16、0.0 k0.5 pound solid steel ball dropped from a height of 30.0 $0.5, -0.0 inches. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-C-8525Ll 13 m 7779706 0364134 4 i MIL-C-85254(AS) . 3.2.1.7 Thermal shock. The charge shall withstand alternate se
17、quen- tial exposure to temperatures of -48OC for 90 minutes, +75OG for 30 minutes, and +254OC for 5 minutes without degradation of performance, and shall not constitute a safety hazard after exposure to thermal shock. 3.2.1.8 High temperature (safety). The charge shall withstand alter- nate sequenti
18、al exposure to temperatures of +99 +3OC for 2 hours, +280 +3OC for 5 minutes, and +225 +3QC far 20 minutes without detonating, and without constituting a safety hazard after thermal exposure: 3.3 Design and construction. 3.3.1 Materials, processes, and parts. The design and construction of the charg
19、e shall. be as follows. 3.3.1.1 Material. The material used in the manufacture of the charge shall be as follows: a. Sheath: Seamless fine silver of 9 9 percent minimum purity. b. Core: HNS, Type II, Grade A, recrystallized from an approved organic solvent and conforming to WS-5003. 3.3.1.2 Dimensio
20、ns. The charge shall conform to the dimensions shown on Figure i. 3.3.1.3 Splicing. There shall.be no splicin 3.3.1.4 Core load. The core load shall be 25.0 i-0.5, -0.0 gr/ft. 3.3.1.5 Explosive uniformity. The explosive core and metal sheath shall be continuous and shall be free from gaps, voids, in
21、clusions, or impurities. 3.3.2 Standafds of manufacture. When specified in the contract or purchase order (see 6.2.2), the contractor shall include written certi- fication accompanied by objective quality-evidence as defined in MIL- STD409, that the materials, processes, and parts used in the charge
22、 meet the requirements of Section 3. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-85254 (AS) 3.3.3 Identification and marking. Each piece o charge shall be legibly identified to the run from which the charge was cut. On the leading end, a
23、ttach a tag or tape with the suppliers lot number, sublot number, and sequence number marked in permanent ink. Individual lengths shorter than as specified herein shall be marked by sequence numbers which identify the position of that sequence length within a sublot (see Figure 2). Lot numbering sha
24、ll be in accordance with MIL-STD-1168. Exampl e : Lot Sublot Sequential lengths ABC7 9AOl8-O0 1A -1 1 -1 3.4 First article. Unless otherwise specified in the contract or purchase order, the contractor shall furnish a preproduction sample consisting of one completed drawtube for first article inspect
25、ion and approval (see 4.1.2.2 and 6.2.1) The preproduction sample shall be manufactured using the same methods, materials, processes, and procedures proposed for production. Any production prior to acceptance of the preproduction sample shall be at the risk of the contractor. Any changes in material
26、s, design, and processes used after the manufacture of the preproduction sample may be cause for resubmission of a preproduction sample. 3.4.1 Retest. At the discretion of the procuring activity, preproduction tests, or any portion thereof shall be repeated under any of the following conditions: a.
27、When the manufacturer has modified the product (such as a change of raw materials, processes, production procedures, or methods). b. Where there is evidence that the quality of the prodact has not been maintained.This evidence may be in the form of accumulated product failures, of system failures at
28、tributable to the product, or failure of the product to pass any of the tests for production lot acceptance that may be conducted by or for the procuring activity. c. When production data package has been amended or revised sufficiently so that continued validity of the previous preproduction testin
29、g is questionable. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85254 (AS) d. When the manufacturer has not produced charges to this specification for a period of 12 months or longer. e. When manufacturer changes location at which the char
30、ge is produced. 3.5 Documentation. When specified in the contract or purchase order (see 6.2.2), inspection reports shall be prepared as specified in 4.1.2.5 and 4.2.4. 3.6 Workmanship. The device shall be fabricated in a manner that will ensure compliance with all requirements of this specification
31、 and the assembly drawing. The charge shall be free from cracks, scratches, gouges, dents, laps, seams, bends, kinks, or evidence of corrosion. 3.6.1 Special working environments. Special working environments for the manufacture of the charge shall be as specified in MIL-B-85251. 4. QUALITY ASSURANC
32、E PROVISIONS. 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the per- formance of all inspection requirements as specified herein (see 6.2.1). Except as otherwise specified in the contract or purchase order, the con-
33、 tractor may use his own or any other facilities suit.able ?or the perform- ance of the inspection requirements Specified herein, unless disapproved by the Government. the inspections set forth in this specification where such inspections are deemed necessary to assure that supplies and services con
34、form to prescribed requirements. The Government reserves the right to perform any of . 4.1.1 Classification of inspections. The examinations and tests specified herein shall be classified as follows: a. Preproduction inspections (see 4.1.2.1). b. Quality conformance inspections (see 4.2). n sample o
35、f. one ns and tests- of 8 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85254 33 o L L O6 0364337 T W MIL-C- 85254 (AS Y z W -3 v 3 9 W W a r r I c 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
36、IHS-,-,-_- MIL-C-85254 13 9999906 03611338 L II MIL- C- 852 5 4 ( AS 1 TABLE III. Preproduction inspections. Examination or test Group I Visual Radiographic inspection Group II Core load Detonation velocity and explosive force Minimum bend radius Impact resistance Grout, III High temperature Low tem
37、perature Temperature shock High temperature (safety) Requirement paragraph 3.3.1.1, 3.3.1.2, 3.3.1.3, 3.3.1.5 3.3.2, 3.3.3, 3.6 I 3.3.1.4 3.2.1.1, 3.2.1.2. 3.2.1.3 - 3.2.1.6 3.2.1.5 3.2.1.4 3.2.1.7 3.2.1.8 Method paragraph 4.3.2 4.3.10 4.3.3 4.3.4 4.3.9 4.3.7 4.3.6 4.3.5 4.3.8 4.3 .li 4.1.2.2 Prepro
38、duction sample preparation. The preproduction sample of 3.4 shall undergo Group I examinations and then subsamples 158 51 inches in length shall be taken from the original leading and terminal ends and from each 100 15 feet of the preproduction sample, however, no less than 10 subsamples are require
39、d. Each subsample shall be assigned a unique number for identification, and tagged in the same manner as a sublot. Each subsample shall be sectioned for testing as follows: a. Cut off 1.0 iO.1 inches at each end and discard. b. ,Cut off the succeeding 6.0 20.1 inches and reserve for core load tests
40、(see 4.3.3). 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* C. d. e. h. .r i. MIL-C-45254 13 7797706 0364237 3 m! . MIL-C-85254(AS) Cut off the succeeding 24.0 50.1 inches and reserve for detonation velocity and explosive force tests (see 4.3.4
41、). Cut off the succeeding 24.0 fO.l inches and reserve for low temperature tests (see 4.3.5). Cut off the succeeding 24.0 kO.1 inches and reserve for high temperature tests (see 4.3.6). Cut off the succeeding 24.0 kO.1 inches and reserve for thermal shock tests (see 4.3.8). Cut off the Succeeding 24
42、.0 kO.1 inches and reserve for minimum bend radius tests (see 4.3.9). . Cut off the succeeding 6.0 f0.i inches and reserve for the impactresistance tests (see 4.3.7). Reserve the remainder for the high temperature (safety) tests (see 4.3.11). 4.1.2.3 Acceptance criteria. Failure of the sample charge
43、 in the preproduction sample to pass any of the preproduction tests shall reject the preproduction sample. 4.1.2.4 Disposition of preproduction sample. If results of the pre- production sample tests of Table III are acceptable, unused portions of the preproduction sample charge may be marked for use
44、 in hardware applications upon receipt of written approval from the procuring activity (see 6.2.1). . 4.1.2.5 Preproduction inspection report. When specified in the contract or purchase order (see 6.2.2), results of the preproduction inspections shall be prepared for the procuring activity. The repo
45、rt shall contain the following information accompanied by a certification which attests that the information provided is correct and applicable to the product being submitted: a. A statement that the preproduction sample complies with all quality assurance provisions of this specification for the ch
46、arge specified in the contract or purchase order. 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-C-5254 li3 7777906 0364LL10 T b. Number of units of product inspected. c. Results obtained for all inspections performed, includ- ing copies of
47、 raw data for core load and all detonation velocity measurements. d, Contract or purchase order number and date, together with an identification and date of changes. e. Certificates of compliance of all material procured directly by the contractor. f. Date submitted. The certification shall be signe
48、d by a responsible agent of the certfy- ing organizaton. The initial certification shall be substantiated by evidence of the agents authority to bind his principal. Substantiation of the agents authority will not be required with subsequent certsfica- tions unless, during the course of the contract,
49、 this authorty is vested in another agent. of the certifying organization. 4.2 Quality conformance inspections. Each inspection lot of charge submitted for acceptance shall be subjected to the examinations and tests specified in Table IV, in the sequence shown. TABLE IV. Quality conformance inspections. Examination or test Group I Certif
