1、MIL-1-23488 ( Wep) 19 October 1962 Superseding NAVWEPS OS 11514A 20 February 1962 MILITARY SPECIFICXTION IGNITION ELEMENT, ELECTRIC, MARK 10 MOD O (This specification has been approved by the Bureau of Naval Weapons, Department of the Navy.) 1. SCOPE 1.1 This specification governs the manufacture, a
2、ssembly and preparation for delivery of the Ignition Element, Electric, Mark 10 Mod O, and the methods of inspection and tests upon which product acceptance will be based. 2. - APPLICABLE DOCUMENTS 2.1 The following standards, drawings, and publications, of the issue in effect on the date of invitat
3、ion for bids, form a part of this document . SPECIFICATIONS FEDERAL T-T-881 QQ-T-4 2 5 W-C-282 LLL-F-291 MILITARY Twine, Cotton, Seine Tinplate (Hot Dip and Electrolytic) Chipboard, Plain Fiberboard, Corrugated, Single FaCe (Flexible) MIL-C- 10464 JAN-P-108 STANDARDS MILITARY Can, Hermetic Sealing,
4、Metal, Light Gage, Tear Strip Type Packaging and Packing for Overseas Shipment Boxes, Fiberboard (U-board and W-board) Exterior and Interior MIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes “ . - Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
5、nse from IHS-,-,-I MIL-STD-352 Forty Foot Drop Test for Use in MIL-STD-353 MIL-STD-354 MIL-STD-414 Transportation-Vibration Test for Use in Production of Fuzes Temperature and Humidity Test for Use in Production of Fuzes Sampling Procedures and Tables for Inspection by Variables for Percent Defectiv
6、e BUWEPS LD No. 546651 Transportation Vibration Test Fixture, I BUWEPS LD No. 546657 Firing Test Fixture, Ignition Element, (Output and Electrical Functioning) BUWEPS LD No. 546658 Drop Test Fixture, Ignition Element BUWEPS LD No. 546664 Packaging, Inner Container BWPS LD No. 482723 Packing, Outer C
7、ontainer And all documents listed thereon. I (Copies of specifications, standards, drawings and publications I required by contractors in connection with specific procurement functions should be obtained from the procuring activity, or as di- rected by the contracting officer.) 2.2 Other publication
8、s. -The following publication forms a part of this document. Unless otherwise indicated, the issue in effect on the date of invitation for bids shall apply. CODE OF FEDERAL REGULATIONS 49 CFR 71-78 Transportation, Interstate Commerce Commission, Explosives and Other Dangerous Articles. 2 O Provided
9、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(The Interstate Commerce Commission regulations are now a part of the Federal Regulations (1949 Edition - Revised 1950) available from the Superintendent of Documents, Government Printing Office, Washington 25,
10、D. C. Orders for the above publication should cite “49 CFR 71-78, Rev. 1950“.) 3. REQUIREMENTS 3.1 General. -The ignition element shall be manufactured, assembled, and prepared for delivery each in accordance with its L. D. No, 54661s. and all documents listed thereon. 3.1.1 Cleanliness and conditio
11、n of parts. -All parts shall be free of chips, dirt, grease, rust and all other foreign materials. There shall be no burrs or other imperfections of manufacture which would harmfully affect either the assembly or the functioning of the product. The cleaning methods which are used shall not be injuri
12、ous to any of the parts, nor shall the parts be contaminated by the cleaning agents which are used. 3.1.2 Materials. -The materials which are used in the fabrication of the ignition element components, and in the assembly of the ignition elements, shall be as specified in the applicable documents, e
13、xcept where deviation is specifically authorized by the Government. 3.1.3 Assembly procedure. -Assenfbly shall proceed in a careful, neat and orderly manner to prevent either damage to parts, or the inclusion of foreign materials and/or defective or marginal parts and subassemblies. 3.1.4 Preproduct
14、ion samples. -Unless otherwise specified by the procuring activity, a preproduction sample of 500 Ignition Elements of one mark and mod shall be furnished the Government at the start of either pilot production, or full production if there is no pilot production. These ignition elements shall be manu
15、factured by the same procedures and processes, and at the same location, which are proposed by the contractor for full production and using the same tooling, fixtures and equipment as proposed for full production. The preproduction sample shall be prepared for delivery as pre- scribed in the applica
16、ble section of this document. The prepro- duction sample shall conform to the requirements of this document as prescribed in 4.2.2. The Bureau of Naval Weapons shall designate the testing activity. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2
17、Bridge wire assembly, continuity. -Immediately after sol- dering the bridge wire in place, the bridge wire assembly shall be thoroughly cleaned to remove solder flux and contamination. bridge wire shall then be caused to glow by the application of an electric current to assure continuity of the brid
18、ge wire. current shall be regulated to produce a visible red glow of both legs of the bridge wire. DC may be used with a suitable series resistor to adapt the genera- tor characteristics to the resistance of the ignition element. Glow testing is a necessary manufacturing operation, and shall be cond
19、ucted on each assembly. both legs of the bridge wire shall be screened from acceptable material in the process. worked by replacement of the bridge wire. The The An EMF of approximately 1.5 volts AC or Assemblies which fail to glow in The discarded assemblies may be re- 3.3 Closing disc. -The closin
20、g disc shall be free from splits, cracks or any other deleterious imperfections of manufacture. It shall not be perforated, after the assembly operation. 3.4 Explosive Components, Volatile. -The primer composition (Frankford Arsenal FA-878, Dwg. B-7553516) used in the loading of the ignition element
21、 assembly shall have a moisture content of 3% at the time of loading. in the spacer, Dwg. 2302016 (loaded), it shall be dried at a temperature of looo F to 120 F for 16 hours. After consolidating the primer composition 3.5 Igniter assembly, loading. -The consistency of the ignition charge ana the lo
22、ading procedure shall be regulated to secure an ignition charge which is free from inkernal voids, while avoiding damage to the bridge wire. cavity such that the charge is flush with the top of the cavity and the bridge wire is completely covered. All lateral surfaces which are subject to metal cont
23、act shall be free from any of the ignition charge. Where necessary, lateral surfaces may be cleaned of ignition charge by means of a cloth wet with butyl acetate. charged igniter assembly shall be dried at a temperature of looo F to 120 F for a minimum of 12 hours. shall immediately precede assembly
24、 of the igniter assembly into the ignition element assembly. from cracks, voids, and separation from the metallic housing. The ignition charge shall fill the The As least 4 hours of drying The dried igniter charge shall he free 3.5.1 Ignition charge. -The ignition charge shall be compounded by an ap
25、proved method which maintains the weight composition of non- volatile constituents prescribed by the drawing. The finished ig- nition charge, when ready for buttering into the iyniter assembly, shall be a uniformly mixed slurry in which all the particles are wetted. The consistency shall be such tha
26、t the li (2) axisvertical, closing disc down1 and (3) axis horizontal. The vibration test shall be con- ducted at a single amplitude of 0.030 inch throughout a frequency range of 1100 to 3000 cycles per minute in frequency steps of 100 cycles per minute with a running time of 10 minutes at each incr
27、e- ment. Each element shall receive a total of 10 hours of vibration in the test when vibrated for 200 minutes at each position. Except as stated above, equipment and test procedure shall be as prescribed in MIL-STD-353. Having been subjected to the vibration test, the ignition element shall be both
28、 operable and safe to handle or use. To establish operability, the tested ignition element shall be sub- jected to the Electrical Functioning Test of 4.4.3. The firing time f each element shall be recorded. The criteria for accept- ance is that this data not be significantly different from datam- ta
29、ined in Electrical Functioning Test. An ignition element which fails to pass the Vibration Test as herein prescribed shall be con- sidered defective. One or more defectives shall be cause for rejec- tion of the lot. The fixture shall be rigidly 4.4.4.2 Forty Foot Drop Test. -From each lot select a s
30、ample in accordance with MIL-STD-105, Inspection level L-6, acceptance number zero. Sample ignition element assemblies from each production lot submitted for test shall be subjected to the Forty Foot Drop Test. Sample. elemnts shall be assembled in Drop Test Fixture, BUWEPS and five, axis horizontal
31、. The test procedure and equipment used in conducting the test shall conform with that pre- scribed in MIL-STD-352. The criteria by which the ignition element is judged to have withstood this test are that (1) the element shall be both safe to handle and dispose of, and (2) no explosive element shal
32、l have become initiated. An ignition element which fails to pass the Forty Foot Drop Test as herein prescribed shall be considered de- fective. One or more defectives shall be cause for rejection of the lot. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
33、 IHS-,-,-4.4.5 Preproduction Sample Tests. -In addition to the acceptance tests of Para. 4.4.1 through 4.4.4.2, the preproduction sample shall be subjected to the Temperature and Humidity Test of Para. 4.4.5.1. Conformance of the preproduction sample, where an inspection level is provided, shall be
34、ascertained on sample sizes as provided for a lot size of 4,000. 4.4.5.1 Temperature and Humidity Test. -Twenty-five ignition ele- nttnt assexblies shall be selected from each inspection lot. Sample elements shall be subjected to the Temperature and Humidity Test prescribed in MIL-STD-354. Elements
35、shall be positioned vertically to the test chamber and supported in a manner to prevent submersion. The output end of element shall face downward throughout the test. Having been subjected to the test, the elements shall be both oper- able and safe to handle or use. ignition elements shall be subjec
36、ted to the Electrical Functioning Test of Para. 4.4.3. An ignition element which fails to pass this test shall be considered a defective. One or more defectives shall cause rejection of the lot. Following the cycling, each element shall be checked for continuity. They shall then be fired and the fir
37、ing times recorded, using the equipment and methods of the Elec- tric Functioning Test, as prescribed in Para. 4.4.3. The criteria for acceptance is that this data shall not be significantly different from that obtained in the Electric Functioning Test. Elements which fail to pass this test shall be
38、 considered defective. One or more defectives shall cause rejection of the lot. The test of MIL-STD-354 requires 28 days of cycling in a set sequence. However, for testing, these elements may be inserted into the test chamber and removed at any time during the cycling as long as all the cycles are p
39、erformed. To establish operability, the teated 4.5 Test Results. -Test results of the Non-Firing Test (Fara. 4.4.2.2) I tRe Firing Test (Para. 4.4.2.3) I. the Electrical Function- ing Test (Para, 4.4.3) and the Durability Tests (Para. 4.4.4) shall be forwarded to the procuring activity. 5. PREPARATI
40、ON FOR DELIVERY 5.1 Packaging. 5.1.1 Level A. 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-234 33 7777906 0303433 2 5.1.1.1 One thousand (1OQO) ignition elements of one mark and mod shall be packaged in accordance with BUWEPS LD No. 54666
41、4. 5-1.2 Level C. 5.1.2.1 One thousand (1000) ignition elements of one mark and mod shall be packaged in a manner which will afford adequate protection from deterioration and physical damage during shipment from the contractor or supply source to the first receiving activity for immediate use. 5.2 P
42、acking. 5.2.1 Level A. 5.2.1.1 Pack four (4) inner containers, BWEPS LD 546664 in ac- cordance with BUWEPS L 482723. 5.2.2 Level C. 5.2.2.1 Four (4) inner containers shall be packed in a manner which will provide protection from damage during direct shipment from the contractor or supply source to t
43、he first receiving activity for im- mediate use. The type of containers used shall conform to Code of Federal Regulations 49 CFR 71-78. 5.3 Marking. - 5.3.1 In addition to any special marking required by the contract or order, all marking shall be in accordance with Military Standard MIL-STD-129 and
44、 Code of Federal Regulations 49 CFR 71-78. 5.4 Data Cards. -Data cards, five inches by eight inches, printed as shown below, shall be completed for each lot of elements. Two of these shall accompany the shipping ticket. Three copies shall be forwarded to the Bureau of Naval Weaponst one copy shall b
45、e forwarded to OSO, Mechanicsburg, Pennsylvania (Code AM); one copy shall be forwarded to NAD, Crane, Indiana (Code 3500): and one copy shall be forwarded to the test activity to represent each group of samples submitted for test. Provided by IHSNot for ResaleNo reproduction or networking permitted
46、without license from IHS-,-,-IGNITION ELEMENT, ELECTRIC, MK 10 MOD O -_ Preproduction/Production Lot Nuniber (Delete one) Quantity in Lot Name of Manufacturer List of Drawings Contract Number Specification Nuniber Lot Produced (Month and Year) Remarks : G (Enter a description of each waiver, deviwti
47、on, or both, related to the lot represented with reference to the authorization for the waiver or deviation.) 6. NOTES 6.1 Sntended use. -The Ignition Element Mk 10 Mod O is intended for use in the ignition of the main propellant charge in the Mk 33-1 Impulse Cartridge. 6.2 Ordering data. - Procurem
48、ent documents should specify the de- sired level of packaging and packing. selected unless it is definitely known that the equipment will be used immediately upon receipt. Level C should not be 6.3 Advisory procedures for preparation and loading of ignition charge. 6.3.1 Preparation of ignition char
49、ge. -A small amount, approxi- mately 10 milliliters of the watered lead styphnate slurry, as re- ceived is placed in a tared rubber dish. The styphnate is allowed Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-23488 (Wep) to settle, and the supernatant water is removed by decantation or by siphoning. Approximately 25 milliliters of ethanol are added, and the mixture is stirred gen
