1、MIL-PRF-14977C 9999Ob 20517Lb 4bb MIL-PRF-l4977C(OS) 18 June 1997 SUPERSEDING 18 September 1992 MIL-PRF-l4977B(OS) PERFC“CE SPECIFICATION SQUIB, MARK 1 MOD O FOR 2.75 INCH ROCKET This specification is approved for use by the Naval Sea Systems Command, Department of the Navy and is available for use
2、by ail Departments and Agencies of the Department of Defense within the distribution limitations noted at the bottom of the page. 1. SCOPE 1.1 Scope. This Specincation covers the quaiity assurance provisions and special requirements not covered by the drawings for one type of squib designated Mark 1
3、 Mod O. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this specification are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every
4、 effort has been made to ensure the completeness of this iist, document users are cautioned that they must meet all specified required documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The followin
5、g specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicit
6、ation (see 6.2). I Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Branch (Code 841Ot), Indian Head, MD 20640-5035
7、by using self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 1340 DISTRIBUTION STATEMENT D Distribution authorized to DD and DOD contractors only; administrative or operational use; 25 March 1995. Other requests
8、 shall be referred to Commander, Indian Head Division, Naval Surface Warfare Center, Indian Head, h4D 20640-5035. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-LLI77C = 0b 2053737 3T2 = SPECIFICATIONS DEPARTMENT OF DEFENSE MIL-A-2550 Ammun
9、ition, General Specification for STANDARDS DEPARTMENT OF DEFENSE MIL-STD-33 1 Fuze and Fuze Components, Environmentai and Performance Tests for MIL-STD-4 14 Samphg Procedures and Tables for Inspection by Variables for Percent Defective MIL-STD-1168 Ammunition Lot Numbering MIL-STD-1169 Packaging, Pa
10、cking and Marking for Shipment of Jnert Ammunition Components (Unless otherwise indicated, copies of specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Ave., Philadelphia, PA 191 1 1-5094.) 2.2.2 Other Government documents,
11、drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS NAVY (NAVAR) 233AS522 233AS530 Casing Assembly 233AS53 1
12、Spacer Assembly 233AS532 Plug Assembly Squib, Mark 1 Mod O 233AS533 Initiation Assembly 233AS534 Bridge Wire Assembly 233AS8 14 Squib Closed Bomb Assembly (copies of the drawings required by contractors in connection with specific acquisition functions should be obtained from the contracting acivity
13、 or as directed by the contracting activity.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-14977C 999990b 2C15L7LB 239 23 Order of precedence. In the event of a codict between the text of this document and the references cited herein, t
14、he text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to the first article inspection (see 6.3) i
15、n accordance with 4.3. 3.2 Material. Materials shall be in accordance with drawings and specifications specified herein. 33 Electrical continuity and resistance. The electrical circuit of each squib shall be continuous and shall meet the requirements of Drawing 233AS522. 3.4 Dielectric characteristi
16、cs. The resistance between the connected lead wires and the case shall be not less than 50 megohms. 3.5 No-fire sensitivity. The squib shall not fire when energized with 0.20 amperes, 24 volts direct current (dc) for 5.25 f 0.25 seconds. 3.6Firingtime.Whensubjectedto 1.5 *0.15 amperesdcat21.1*2.8Cel
17、sius (C),thesquibshallfue in 0.005 seconds or less. 3.7 pull test. The plug assembly (Drawing 233AS532) shall be of such quaiity as to withstand a 10 to 10.1 pound (lb) puil test on the individual leads. 3.8 Load test. The bridge wire assembly (Drawing 233AS534) shall have a sound electrical and mec
18、hanical joint that will not break when subjected to a 25 to 27 gram load test. 3.9 Output limits. A closed bomb test shall be used to measure the output pressure limits of the squib (see 4.9.7). When subjected to 1.5 * 0.15 amperes dc fhg current applied across the lead Wires at 70 f 5 degrees Fahre
19、nheit (OF) (21.1 f 2.8 degrees Celsius (OC), the squib shall fire within 0.005 second or less of current appiidon and the maximum output pressure produced by the squib shali be 220 through 455 pounds per square inch gage (psig). 3.10 Jolt resistance. The squib shall withstand the jolt test as specif
20、ied in 4.9.8.1. Thereafter, it shall meet the requirements of 3.3 and 3.4 and shali fire in accordance with 4.9.4 in 0.005 smnds or less. 3.11 Vibration resistance. The squib shdi withstand the vibration test as specified in 4.9.8.2. Thereafter, it shall meet the requirements of 3.3 and 3.4 and shal
21、l fue in accordance with 4.9.4 in 0.005 seconds or less. 3.12 Watertightness. The squib shall be watertight and shall show no evidence of leakage when tested as specified in 4.9.8.3 and thereafter shall fue in accordance with 4.9.4 in 0.005 seconds or less. 3 Provided by IHSNot for ResaleNo reproduc
22、tion or networking permitted without license from IHS-,-,-MIL-PRF-14977C = 9999906 2051?19 175 = MIL-PRF- 14977c(os) 3.13 Workmanship. All parts shall be fabricated and fished in a thorough, workmanlike manner. They shall be free of burrs, chips, sharp edges, cracks, unblended radii, surface defects
23、, metal shavings, dirt, grease, xust, comision products and other foreign mat&. The cleaning mehod used shall not be injurious to any part nor shall the parts be contaminated by the cleaning agent. Ali required markings shall be neat and sharply defined. Known item defects shall not be submitted wit
24、h the lot. 4. VERIFICATION 4.1 Ciassiidon of inspections. The inspection requirements specified herein are classified as follows: a. b. First article inspection (see 4.3) Quality codormance inspection (see 4.4): 4.2 Inspection conditions. Unless otherwise specified, all inspections shall be performe
25、d in accordance with 4.6.2. 4.3 First article inspection. 4.3.1 First article sample. The contractor shall submit a first article sample as designated by the cmtracting officer for evaluation m accordance with the provisions of 4.3.2. The first article sample shall consist of 1000 assemblies and 50
26、complete sets of parts &e., 50 each of evq component, and every subassembly) which bave been produced by the contractor or furnished by a supplier and which have been manufactured using the sameproucionprocesses, procedures and equipment which will be used in fulfilling the contract. All parts and d
27、ah, including packaging and packing, shall be obtained Com the same source of supply as will be used in regular production. Prior to submission, the contractor shall inspect the sample to the degree necessary to assure hat it dm to the requirements of the contract and submit a record of this inspect
28、ion with the sample, including statements of findings/certificates of conformance for materials, (see 4.5.c.). A sample containing known defects will not be submitted dess specifically authorized, by the contracting officer. A first article, or portion thereoc as directed by the contracthg officer,
29、shall also be submitted whenever there is a lapse in production for a period greater than 90 days or whenever a change occurs in manufacturing process, materials used, drawing or specification such as to significantly afect product unifomity as determined by the G0V-t. 43.2 Inspecons to be performed
30、. Assemblies and components will be subjected by the Government to any OT ail of the examinations or tests specified in this specification and any or all requirements of the applicable drawings (see figure 1). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
31、m IHS-,-,-. . . MIL-PRF- 14977C(OS) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-14977C 9999906 205L72L 823 4.3.2.l Sample. Fdly percent of the squibs for the first article testing shall demonstrate operability when tested at -53.9 f 2.8
32、OC and the remaining 50 percent when tested at 73.9 * 2.8 OC. 4.3.3 Rejection. If any assembly or component fails to comply with any of the requirements, the first dcle sample shall be rejected. The Govemment reserves the right to terminate its inspection upon any failure of any assembly or componen
33、t to comply with any of the staid requirements. 4.4 Quaiity conformance inspection. Quality conformance inspections shall be as specified in table 1, the applicable drawings as specified herein, and as specified by the contractbg officer (see 6.2). TABLE I. Qualiy conformance inspection. I Inspectio
34、n I I Material Electrical continuity and resistance Dielectric characteristics No-fire sensitivity Firing time Pull test Load test Output limits Jolt resistance Vibration resistance Watertightness 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.1 1 3.1 2 4.5 4.8.1 4.8.2 4.8.3 4.8.4 4.8.5 4.8.6 4.8.7 4.8.8.1
35、4.8.8.2 4.8.8.3 4.5 Submission of product. At the time each completed lot of items deliverable under the contract is submied to the Govenmigis for acceptancey the contractor shall supply the following information accompanied by a certificate which attests that the idomation provided is correct and a
36、pplicable to the product being submitted: a. b. C. d. e. A statement that the lot complies with ail of the quality assurance provisions specified in this specification Drawing and speddonnimiber and date, together with identification and date of changes thereto A statement that all material pinchase
37、d by the contractor meets requirements, when such material is controlled by Government or commercial specifications referend in any of the contracuai documents, and that ceriifkates of conformance are on file and available for review Number of items in the lot Date submitted. The certificate shall b
38、e signed by a responsible agent of the mtyhg organization. The initial certificate submitk shall be substantiated by evidence of the agents authority to bind his principal. Substantiation of the agents authority will not be required with subsequent certifcates unless, during the course of the contra
39、ct, this 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-34977C 9999906 2053722 7bT = I MIL-PRF- 14977c(os) authority is vested in another agent of the cemg organization. 4.6 Inspection provisions for production. 4.6.1 Lot formation. In thi
40、s specikation the term inspection lot refers to an essentially homogeneous collection of units or product fiom which a representative sample is drawn and inspected to determine cordomauce of the lot with applicable requirements. The sample selected shall represent only that quantity of uuits hm whic
41、h the sample was dram and shaU not be construed to represent any prior or subsequent quantities presented for inspection. Homogeneity shaU be considered to exist provided the lot has been produd by one manufacturer, in one unchanged process, in accordance with the same &awing, specifications, or rev
42、ision thereof. Changes to either the process, specification or drawing not affecting safety, performance, interchangability, or storage, as determined by the Government inspector, shall not be deemed to alter the homogeneity of the lot. Inspection lots shall be numbered in accordance with MIL-STD-11
43、68. Unless otherwise approved by the contract& officer, the inspection lot size of major assemblies or end items deliverable under the contract shall not be less than the smallest estimate of quantities contractualy scheduled for production during the contract period nor more than the largest quanti
44、ty contractually scheduled for delivery during any month of the contract period. Inspecm lots for components or sub-assemblies, other than the items of delivery, shall be homogeneous and of a size convenient to the contractor. 4.6.2 Examination. The examinations specifkd herein shall be performed on
45、 inspection lots (see 4.6.1) of the components or assemblies in the applicable paragraph headings. Inspection for critical defects (and major defects when so specified) shall be 100 percent. a. Sampling PZans. Sampling plans shall be in accordance with tables II through VIII of this spedcation. Samp
46、ling plans for major defects sha be in accordance with sampling plans specified herein, except that variable sampling plans in accordance with MIL-STD-414 may be used if requested by the contractor and approved by the contracting officer. b. Critical Defects. Unless otherwise specified, inspection f
47、or critical defects shall be 100 percent. c. Major Defects. When required, major defects shall be inspected 100 percent. Except where 100 percent inspection is specied, inspection for major defects shall be to the individual sampiing plan tables indicated in the classification of defects and test pa
48、ragraphs provided in this detail specification. The sampling plans for testing (see 4.8) shall be as specified. d. Unlisted Defects. See MIL-A-2550. e. Individual Defects. Instead of applying the sampling plans designated herein to the individual defects, the group sampling plans listed for each maj
49、or subparagraph in 4.6.2 may be used at the option of the contractor for those groups where a group sampling plan is assigned. Each group sampling plan applies to a major pup indicated in the subparagraphs of paragraph 4.6.2, and if this method is elected, it shall be used for all of the subparagraphs of paragraph 4.6.2, where group sampling plans are so designated for this purpose. 7 Provided by IHSNot for ResaleNo reproduct
