1、MIL-D-18503 (Nard) 25 April 1955 SUPERSSDING IVAVORD OS 3713 25 April 1945 MILITARY SPECIFICATION DETONATOR I4.K 22 XOD O 1. SCOPE 1.1 This specification governs the nanufacture, assembly, ._ loading and preparation for delivery of Detonator Xk 22 Xod O and the methods of inspection and tests upon w
2、hich acceptance will be based. Detonator Xk 22 Hod O is stab initiated . 2. APPLICABLE ECUIVlENTS 2.1 The following specifications, standards, drawings, and publications, of the issue in effect on date of invi- tation for bids, form a part of this specification: SPECIFICATIONS MILITARY JAN-T-339 - T
3、etryl (trinitroshenylmethylnitramine). S T ANDBRDS MIL-STD-105 - Sariipling Procedwoes and Tables for MIL-STD-129 0- Marking for Shipment and Storage. Inspection by Attributes. DRANINGS 4 BUREAU OF ORDNANCE 438236 - Detonator Nk 22 Xod O, LD 166538 - Test Set (Detonator) Nk i36 Mod O, LD 168793 - De
4、tonator Container Mk 3 Mod O, LD 168794 - Detonator Container 3k 2 Mod O, LD 284563 - Test Set Nk 170 Mod O, - Test Ball, and all documents listed thereon. THIS DOCUMENT CONTAlFdS 1 PAGES. 553491 7 c- /-? 75 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
5、IHS-,-,- - - _I_ MIL-D-18503 13 m 7777706 0277457 7 m MIL-D-i8503 (Nord) PUBLIC AT IONS BREAU OF ORDNANCE OP 400 OD 5823 -0 General Instructions for the Design, Manufactwe, and Inspection of Naval Ordnance Equipment. 0- Sensitivity Test of Primers and Detonators using Test Set Mk i35 Mod O (Primer)
6、and Test Set Mk i36 Mod O (.Detonator). (Copies of specifications, standards, drawings, and publi- cations required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the Contracting Officer.) 2.2 Other Publications. - Th
7、e following documents form Unless otherwise indicated, a part of this specification. the issue in effect on date of invitation for bids shall apply CODE OF FEDERAL REGULATIONS 49 CFR 71-78 - Transportation, Interstate Commerce Commission, Explosives and Other “a Dangerous Articles. (The Interstate C
8、ommerce Commission regulations are now a part of the Code of Federal Regulations (1949 Zdition-Ze- vised 1950) available from the Superintendent of Documents, Government Printing Office, Washington 25, D. C, for the above publication should cite “49 CFR 71-78 (Rev, 1950) “ ) Orders 3. REQTJIREMENTS
9、3.1 General. 3.1.1 Detonators Ik 22 Mod O covered by this specification shall be manufactured in accordance with Bureau of Ordnance Drawing No, 438236 and all documents listed thereon. 3.1.2 3.2 The requirements and procedures established in OP 400 Handling. - Loaded detonators shall be pecked by lo
10、ts, shall be adhered to wherever applicable. marked for lot identification, and stored in desiccators (or Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-in hermetically sealed dry atmosphere) until such time as they we loaded into fuzes or prepared
11、for shipment. 3;3 Primina Mixture, - The moisture content of the priming mixture at th e time of loading shall be less than 0.30 per- cent as determined by the procedure of 4.4.1. The composition of the priming mixture shall meet the drawing requirements when subjected to the chemieal analysis descr
12、ibed in 4.4.3. at the time of loading shall he less than 0.30 percent as determined by the procedure of 4.4.1. 3.5 Tetryl. - The volatiles and moisture content of the tetpyl at the time of loadin shall not exceed 0.10 percent when tested as specified in $.4.2. 3.4 Lead Azide. - The moisture content
13、of tne lead azide 3.6 Detonator Sensitivity. - The sensitivity of the detonators shall be ascertained as prescribed in 4.4.4. The sensitivity value shall be used for data card record and process control, Deviations in sensitivity values shall not directly cause the rejection of detonators, but may b
14、e reason for checking materials, processes, and priming mixture com- position for compliance with drawing and specification require- ment s . 3.7 Detonator Ftuictioninq. - The detonator shall function on firing pin penetration when tested in Test Set Mk i36 Hod O using a two ounce test ball and a dr
15、op height of 18 inches. Testing and acceptance shall be in accorance with 4.4.5. 3.8 Detonator Output. - Each explosion of the detonator in the Pest Set Mk 136 Mod O shall produce a perforation in the lead disc greater than 0.10 inch in diameter. ation diameter shall be the diameter of a circle of e
16、qual area as determined by the use of Test Set Mk i70 Mod O. Testing md aeceptance shall be in accordance with 4.4.6. The perfor- 4. QUALITY ASSURANCE PROVISIONS AND TEST REQU1RZI”TS 4.1 Preproduction Sample. - Before entering into quantity production, a preproduction sample of one thousand (1OCO) D
17、etonators Mk 22 Hod O shall be delivered by the Contractor for test to an agency designated by the Procuring Agency. These detonators shall be manufactured by the same procedures and processes and at the same location proposed by the Con- tractor for the execution of the contract. When a prepro- duc
18、tion sample is received which proves to be satisfactory 3 -, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- I MIL-D-18503 13 M 7797706 0299Li57 2 MIL-D-18503 (Nord) for the purpose intended, the Contractor will be notified and will be authorized by
19、 the Procuring Agency to proceed with the submission of the product for acceptance. samp1e.s will become the property of the Procuring Agency and.wil1 be included in the number called for in the contract schedule. Accepted 4,i.l Preproduction Sample for a Subsequent Contract, - The necessity for a p
20、reproduction sample will be determined by the Procuring Agency when production under a new contract by the same Contractor at the same location follows the manufacture of satisfactory material as covered by this spec- ifica-tion, 4.2 Production Lot. - For procurement purposes each lot of loaded deto
21、nators shall consist of 10,000 detonators plus those required for all test purposes. should not be confused with the lot for inspection purposes defined in Milit arg Standard YtIL-STD-lOA “Sampling Procedures and Tables for Inspection by Attributes. The production lot 4.3 Inspection. - The general i
22、nspection procedures shall be in accordance with General Instructions for the Design, Manufacture, and Inspection of Naval Ordnance Equipment, OP 400; government inspection shall be in accordance with the provisions of General Procedure for Government Inspection and contractors inspection shall be i
23、n accordance with Inspection by Contractor, as contained in OP 400. 4.4 Tests. 4.4.1 Moisture Content Test for Frimina Wxture and Lead Azide. - Conduct at least one test for each lot of detonators and auch additional tests as the Inspector considers warranted by variations in the process and materia
24、ls, imate two gram sample of the material being loaded in a tared, stoppered container at the site of and immediately prior to consolidating the charge in the container. Xeigh the con- tainer; open and expose the sample for drying at 50 f 2 degrees C and at least 28 inches (Hg) vacuum until constant
25、 weight is reached. Cool the container in a desiccator; stopper and weigh. All weighings shall be accurate to i- 0.5 milligram. Thepresenceof moisture in excess of 0.30 percent for priming mixture or lead azide shall. cause suspension of the charge loading until permanent corrective measures satisfa
26、ctory to the Inspector have been completed. Collect an approx- Detonators which have 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-18503 13 m 7797706 0277460 7 m - f- -I -_ MIL-D-18503 (Nord) been loaded with the defective charges shal.1 be
27、 rejected. 4.4.2 Volatiles amd Noisture Content Test for Tetryl. Conduct at least one test for each lot of detonators and such additional tests as the Inspector considers warranted by variations in the process and materials. Test procedure shall be in accordance with that giben in Military Specifi-
28、cation JAN-T-339. The presence of volatiles and moisture in excess of 0.10 percent shall cause suspension of the charge loading until permanent corrective fieasures satis- factory to the Inspector have been completed. Detonators which have been loaded with the defective charges shall be rejected. 4.
29、4.3 Chemicai Analysis of Priming Mixture. - Chemical analysis of the priming mixture to determine conformity with composition requirements of the drawing shall be made at the request of the Inspector. The test will normally be employed to determine cause of marked deviations in sensitivity or functi
30、oning resulting from composition or worhanship deficiencies, Priming mixture batches and detonators loaded therefrom shall be rejected when the composition does not meet dpawing requirements, Analytical procedures for deter- mining the percentage of each constituent of the priming mixture shall be i
31、n accordance with 4.4.3.1 through 4.4.3.4. - 4.4.3.1 Potassium Chlorate. - Weigh accurately approx- imately 1 gram of the primer mixture which has been dried in accordance with 4.4.1. Transfer the sample to a tared ignited filtering crucible of approximately 15 milliliter (mi) capacity. Add 3 ml of
32、a saturated solution of lead azide in distilled water prepared at a temperature of 25 3. 2 degrees C. Agitate for 60 seconds. If necessary, break up any lumps with a glass rod, taking care not to disturb the asbestos mat. Apply suction. Repeat this pro- cedure five times, making a total of six 3 ml
33、extractions, Rinse the sample in the filtering crucible with a few ml of alcohol, then ether; dry for approxi-Lnately 15 minutes at 95 degrees C; cool in a desiccator, and weigh. The per- centage loss of weight, based on the weight of the original sample, shall be considered the percentage of potass
34、ium chlorate . 4.4.3.2 Lead Azide. - Extract the residue from the potassium chlorate determination with 5 ml portions of saturated ammonium acetate solution at about 25 degrees C. Hot ammonium acetate solution must not be used as it dis- solves antimony sulphide to some extent, AgLtate each extracti
35、on for about 30 seconds and repeat extraction until Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-18503 13 m 9999906 0299463 O the filtrate no longer gives a yellow precipitate with potassium dichromate solution. The use of more than 60 ml of
36、 ammonium acetate should be avoided, dash the residue with distilled water; rinse with a few ml of alcohol, then ether; dry for approximately 15 minutes at LOO degrees C; cool in a desiccator, and weigh. The percentage loss of weight, based on the weight of the original sample, shall be considered t
37、he percentage of lead azide, lead azide determination witn hydrochloric acid until free from antimony sulphide . is used for the extraction. After neutralizing, aminoniun sulphide may be used to detect antimony in the filtrate, Wash the crucible contents with hot concentrated hydrochloric acid. Igni
38、te until free from sulphur, cool in a desiccator, and weigh. The precentage loss of weight, based on the weight of the original sample, shall be considered the per- centage of antimony sulphide. the ignited filtering crucible from the weight of the crucible and residue, after the antimony sulphide d
39、etermination. This difference calculated as a percentage of the original sample shall be considered the percentage of carborundum. detonators from each lot (no lot shall exceed 20,000 detonators) for the Bruceton (Staircase) Sensitivity Test employing 1.0 inch increments. Use Test Set (Detonator) Xk
40、 136 Hod O, Bureau of Ordnance List of Drawings LD No. 166538, with Test Ball, Bureau of Ordnance Drawing No. 553491, piece 3. Test set operation and test prooedures me described in OI) 5823. Record, on the Ammunition Data Card specified in 5.4, the 50 percent firing height (h) and the standard devi
41、ation (s) calculated from the test data, 4.4.3.3 Antimony Sulphide. - Extract the residue from the Cold concentrated hydrochloric acid 4.4.3.4 Carborundum. - Subtract the original weight of 4.4.4 Detonator Sensitivity Test. - Select fifty (50) 4.4.5 Detonator Functioning Test. - Samples shall be sel
42、ected and tested from each lot Cn accordance with the Xultiple Sampling Plan, Inspection Level II, AQL 0.25 per- cent defective as given in Military Standard MIL-STD-105. The initiation of the detonator shall be accomplished by the use of Test Set IvIk i36 Mod O equipped with the teat ball specified
43、 in 4.4.4. dropped from a height of 18 inches to initiate the detonator. Detonators which do not explode on the first penetration of the firing pin shall be classed as defective. the lot shall be in accordance with the sampling plan given The two ounce ball shall be Acceptance of 6 Provided by IHSNo
44、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-18503 (Nord) AMMUNITION DATA CARD Mark No. Dwg. No. Loaded by Contract No. I No. in box Spec. 80. Date (Month 8 Yea
45、r) Req. No. No. in Lot h MATERIAL MANUFACTURER LOT NO. DATE (MO. and the or in any way supplied the sald drawings, specifications, or other data is not to be regarded by implication or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be related thereto. fact t K at the Government may have formulated, furnished, 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
