1、MIL-C-85727 13 999990b 03b53b I MILITARY SPECIFICATION 8 April 1985 CARTRIDGE, IGNITER, MARK 164 MOD O 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. i. SCOPE 1.1
2、Scope, This specification establishes requirements for manufactureand acceptance of the Cartridge, Igniter, Mark 164 Mod O, herein referred to as the “igniter cartridge” (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following standar
3、ds of the issue listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS Military MIL-P- 1 16 STANDARDS Preservation, Methods of Military MIL-STD-LOS
4、MIL-STD- 129 Sampling Procedures and Tables for Inspection by Attributes Marking for Shipment and Storage MIL-STD-453. Inspection, Radiographic MIL-STD-810 Environmental Test Methods MIL-STD-1167 Ammunition Data Card 2.1.2 Other Government documents, drawings, and publications. The following drawing
5、s, and publica- tions form a part of this specification to the extent specified herein. Beneficial 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, Systems
6、 Engineering and Standardization Department (SESD) Code 93, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal D Form 1426) appearing at the end of this document or by letter. THIS DOCUMENT CONTAINS- -y- PAGES FSC 1377 Provided by IHSNot for ResaleNo repro
7、duction or networking permitted without license from IHS-,-,-MIL-C-85727 13 = 779770b O365837 T W MIL-C-85727(AS) DRAWINGS Naval Air Systems Command (Code Ident 30003) 759AS 103 Cartridge, Igniter Assembly, Mark 164 Mod O (Copies of specifications, standards, handbooks, drawings, and publications re
8、quired by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer). 2.3 Order of Precedence. In the event of a conflict between the text of this specification and the references cited herein, the text
9、of this specification shall take precedence. 3. REQUIREMENTS 3.1 First article. When specified, a sample shall be subjected to first article inspection (see 4.4 and 6.4). 3.2 Design and construction. Unless otherwise specified in the contract (see 6.2. i), the igniter cartridge shall conform to the
10、requirements specified herein and to Drawing 759AS103 3.3 Environmental requirements. The igniter cartridges shall meet the performance requirements (see 3.5) after being exposed to any of the following conditions or any combination thereof: a. Temperature cycling (4.4.2.2) b. Thirty-day storage (4.
11、4.2.3) c, Vibration (4.4.2.4)- 3.4 Radiographic. AI1 loaded igniter cartridges shall be radiographically inspected for the presence of ignition material/propellant (see 4.6.1). 3.5 Ballistic performance requirements. The igniter cartridges shall meet the closed-bomb requirements specified in table 1
12、 (see 4.6.2). TABLE I. Closed bomb performance requirements. Parameter Maximum pressure (Ib/sq. in.) Minimum Maximum Time to maximum pressure (msec) Minimum Maximum Maximum ignition delay (sec) Secondary maximum pressure (lb/sq. in.) Minimum Maximum Time to secondary maximum pressure (msec) from fir
13、st pressure indication Minimum . Maximum - 65 Temperature (“F) 2,800 3,400 20 30 0.020 1,200 1,Wo 0.1 2.0 + 160 3 ,o00 3,600 20 30 0.020 900 1,600 0.1 2.0 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.6 Service life. The igniter cartridge shall h
14、ave a minimum service life of 5 years from the date of igd- tion material/propellant manufacture. 3.7 Workmanship, All components and assemblies shall be free from burrs, contaminations, corrosion, sharp edges, or foreign material which could result in malfunction of the igniter cartridge or compone
15、nts or be a safety hazard in handling. 4.QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the con- tractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified
16、 in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Govern- ment. The Government reserves the right to perform any of the inspections set forth in the specif
17、ication where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4) b. Quality conformance inspection (
18、see 4.5). 4.3 Inspection conditions. Unless otherwise specified (see 6.2.1) inspection conditions shall be as specified in the applicable test method of 4.6. 4.4 First article inspection. First article inspection shall be performed by the contractor, after award of contract and prior to production,
19、at a location acceptable to the Government. First article inspection shall be performed on sample units which have been produced with equipment and procedures normally used in production. First article approval is valid only on the contract under which it is granted, unless extended by the Governmen
20、t to other contracts. 4.4.1 Sample size, Twenty igniter cartridges shall be submitted for first article inspection. 4.4.2 Inspection routine. First article inspection shall consist of the tests of 4.6 and the additional tests specified in 4.4.2.1 through 4.4.2.4.2 in the sequence specified in table
21、II. 4.4.2.1 Control test firings. Ten igniter cartridges shall be temperature conditioned for 2 hours: five at -65“ f 5F and five at 160“ k 5F. The cartridges shall be radiographed (see 4.6.1) and closed-bomb tested at each conditioning temperature in accordance with 4.6.2. 4.4.2.2 Temperature cycli
22、ng. Four igniter cartridges shall be subjected to temperature cycling. Two car- tridges shall be placed in a conditioning chamber which has been preconditioned to -65“ f 5F. This temperature shall be maintained for 2 hours. The cartridges shall be removed from the chamber and, within a maximum of 5
23、minutes, shall be placed in a chamber preconditioned to 160“ f 5F. This temperature shall be maintained for 2 hours. The cartridges shall be removed from the conditioning chamber and, within a maximum of 5 minutes, shall be placed in the chamber preconditioned to - 65“ -i- 5F. This cycling shall be
24、repeated three times. (A cycle is defined as from -65“ to 160“ and return to -65F or as from 160“ to -65“ and return to 160F.) The other two cartridges shall be temperature cycled as above except the temperatures shall be reversed. After cycling the cartridges shall be radiographed (see 4.6.1) and c
25、losed- bomb tested (see 4.6.2) at the final cycle temperature. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85727 13 = 777970b 0365837 3 IT MIL-C-85727(AS) TABLE II. First article test schedule.“ Igniter cartridges sl-lo Requirement para.
26、Test para. Test 4.4.2.2 4.4.2.3 4.4.2.4 4.6.1 4.6.2 Temperature cycling -65“F, 160“F, -65F 160“F, -65“F, 160F 3.3 3.3 3.3 3.4 3.5 Thirty-day storage at -65F at 160F Vibration at -65F at 160F Radiographic Closed-bomb at -65F at 160F I/ Letters refer to testing sequences; tolerances for all temperatur
27、es shall be f 5F. 4.4.2.3 Thirty-day storage. Three igniter cartridges shall be stored for 30 days at 160“ k 5F and three igniter cartridges at - 65“ I 5F. After 30 days, the cartridges shall be removed from storage, radiograph- ed, conditioned to the temperature at which they were stored, and close
28、d-bomb tested (see 4.6.2). 4.4.2.4 Vibration. Two igniter cartridges shall be subjected to vibration testing. One igniter cartridge shall be conditioned to -65“ f 5F and one to 160“ f 5F for 2 hours before testing. The cartridges shall be maintained at these temperatures during the tests. If the ign
29、iter cartridge temperature falls outside the specified temperature limits for a period of more than 5 minutes, the testing shall stop and the igniter cartridge shall be reconditioned. A reconditioning time of 2 minutes for every minute the igniter cartridge spent outside the specified temperature en
30、velope shall be required for a maximum of 2 hours. A continuous temperature history of the igniter cartridges shall be kept for all conditioning and test times. The igniter shall be placed in a tube to simulate service use and capped at one end. The opposite end of the tube shall be applied to the h
31、olding fixture. Accelerometers to measure acceleration along the axis perpendicular to the axis through the attachment points of the igniter fixture shall be placed on the surface of the tube as close as possible to the end cap. Longitudinal vibration shall be measured at the same location. 4.4.2.4.
32、1 Resonance search. Resonance searches shall be conducted on the igniter cartridges in three axes at the maximum conditioning temperatures. Input vibratory acceleration shall be in accordance with curve H, figure 514-2 of MIL-STD-810. All resonances shall be as noted. During the resonance search a p
33、erma- nent, continuous record of input vibratory acceleration and of unit response to the input vibratory accelera- tion shall be kept. This record shall be made on FM tape and shall include the response along each of the three axes. Frequency shall be varied at a rate not greater than 0.25 octave p
34、er minute. a. A resonance shall be defined as a frequency at which a clearly defined peak in the amplitude ratio (ratio of the output acceleration in any of the three igniter cartridge axes to the input acceleration as measured at the excitation attachment points) is greater than a value of 1.5 to 1
35、. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-C-85727 13 = 777970b 0365840 T L MIL-C-85727(AS) 6 If the resonance survey indicates a frequency band wherein the amplitude ratio is greater than 1.5 to 1 (as contrasted to a clearly defined p
36、eak) this entire band width shall be con- sidered one resonant point. The minimum frequency band width which shall be considered a resonant band shall be 0.33 octave, If, also within this band width, there are clearly defined amplitude peaks, the most severe of these shall be considered and addition
37、al reso- nant point. 4.4.2.4.2 Endurance vibration. Endurance vibration shall be conducted on the two igniter cartridges at the maximum and minimum conditioning temperatures, Each cartridge shall be vibrated for 24 hours, 8 hours in each of the three axes specified in 4.4.2.4.1, The vibration time i
38、n each axis shall be equally divided between the resonant frequencies noted in that axis during the resonant search. Input vibratory acceleration for each resonant frequency shall be in accordance with the acceleration and displacement of curve H, figure 514-2, MIL-STD-810. If no resonant frequencie
39、s are detected in an axis, the igniter cartridge shall be vibrated in accordance with curve H, figure 514-2 of MIL-STD-810. Total vibration time for the igniter cartridge shall be 24 hours which shall include resonant and nonresonant frequencies, as applicable. Endurance vibration of frequency bands
40、 which are classified as resonances in 4.4.2.4.1 shall be conducted as continuous repetitive sweeps across that entire band up in frequency and return at a rate not greater than 0.25 octave per minute. A record shall be kept on FM tape for a 30-second duration at 30-minute intervals (see 6.2.2). At
41、the con- clusion of the tests, the igniter cartridge shall be visually and radiographically inspected for damage without disassembly of the cartridge. The igniter cartridges shall be fired at the same temperature at which they were conditioned and vibrated. 4.4.3 Failures. Failure of any cartridge t
42、o pass the first article test shall be cause for first article rejection. 4.5 Quality conformance inspection. Quality conformance inspection shall consist of the tests specified e in 4.6. 4.5.1 Lot size. A lot shall consist of not more than 500 igniter cartridges. 4.5.2 Sampling. Sampling shall be a
43、s specified in the individual test method of 4.5. 4.52.1 Ballistic test. The sample shall be selected by the procuring activity for ballistic testing after lot manufacture has been completed. Igniter cartridge samples shall not be preselected during production. Ig- niter cartridges selected as sampl
44、es shall not be applied as part of the quantity specified for delivery by the contract or purchase order. One ignition material production batch may be used in more than one load- ed igniter cartridge production lot. More than one ignition material batch may be used. The sample size shall be as equa
45、lly divided as possible among ignition material batches. The sample shall be selected as follows: Lot size Sample size Up to and including 180 15 igniter cartridges or 2 cartridges per ignition material batch, whichever is greater - 8 cartridges tested at -65“F, 7 cartridges tested at + 160F Up to a
46、nd including 500 25 igniter cartridges or 2 cartridges per ignition material batch, whichever is greater - 13 cartridges tested at -65“F, 12 cartridges tested at + 160F 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I 4.6 Test methods. 4.6.1 Radio
47、graphic examination. All igniter cartridges shall be radiographically inspected in accordance with MIL-STD-453, radiographic quality level I at ambient temperature. Any defect shall be cause for rejection of the cartridge. Radiographs shall be capable of detecting defects 0.03 inch in length or widt
48、h, whichever is smaller. Acceptance of the igniter lot shall be subject to procuring activity approval of the radiographs. 4.6.2 Closed-bomb testing. Igniter cartridges selected in accordance with 4.5.2.1 shall be fired at a test facility designated by the procuring activity within 30 days after sub
49、mission of the lot. The igniter cartridge shall be placed in the center body of a Rocket Motor Mk 51 Mod O. The rocket motor chamber (figure 1) shall have all propellant tubes and nozzles removed and the holes welded closed. The igniter cartridge shall be placed in the igniter cartridge tube, and the firing mechanism shall be replaced and torqued to 40 foot-pounds. The free volume shall be 335 f 10 ml with the cartridge installed. The sample shall be tem
