1、INCH-POUND MIL-DTL-32186A (OS) 3 January 2012 MIL-DTL-32186 (OS) 14 February 2005 DETAIL SPECIFICATION EXPLOSIVE SEQUENCE CONTROL This specification is approved for use by the Naval Sea Systems Command. Department of the Navy, and is available for use by all departments and agencies of the Departmen
2、t of Defense. 1. Scope 1.1 Scope. This specification covers the requirements for the explosive sequence control (ESC), DCU-241/A NAVAIR Drawing 30003-850AS135. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4 or 5 of this specification. This se
3、ction does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents
4、cited in sections 3, 4 or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified,
5、 the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-I-8500 Interchangeability And Replaceability Of Component Parts For Aerospace Vehicles MIL-D-21625 Design And Evaluation Of Cartridges For Cartridge Actuated Devices (Copies of th
6、ese documents are available online at https:/assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other government documents, drawings, and publications. The following other government documents, drawings, and publ
7、ications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation or contract. DRAWINGS Comments, suggestions, or questions on this document should be addressed to DEPARTMENT OF THE NAVY, Indian Head Division, NSWC, Code
8、E12P, Document Control, 4123 Artisans Court, Suite 103, Indian Head, Maryland 20640-5085, OFFICIAL BUSINESS, or emailed to amanda.pennnavy.mil. Since contact information can change, you may want to verify the currency of this information using the ASSIST Online database at https:/assist.daps.dla.mil
9、. AMSC N/A FSC 1377 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32186A (OS) 2 NAVAL AIR SYSTEMS COMMAND (CAGE CODE 30003) 850AS135 Explosive Sequence Contro
10、l DCU-241/A 850AS804 Test Fixture Explosive Sequence Control DCU-241/A 850AS852 Vibration Fixture Explosive Sequence Control DCU-241/A 850AS853 Spacer (Application for copies should be addressed to DEPARTMENT OF THE NAVY, Indian Head Division, NSWC, Code E12P, Document Control, 4123 Artisans Court,
11、Suite 103, Indian Head, Maryland 20640-5085, OFFICIAL BUSINESS.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AMERICAN N
12、ATIONAL STANDARD INSTITUTE/AMERICAN SOCIETY FOR QUALITY ANSI/ASQ Zl.4 Sampling Procedures and Tables for Inspection by Attributes (Copies of this document are available online at http:/webstore.ansi.org/ansidocstore/default.asp, or from the American Society for Quality, PO Box 3005, 611 E. Wisconsin
13、 Ave., Milwaukee, WI 53201-4606.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM E1742/E1742M Standard Practice for Radiographic Examination (Copies of this document are available online at http:/www.astm.org/ or from the American Society for Testing and Materials Customer Service, 100 Barr
14、Harbor Drive, West Conshohocken, PA 19428-2959.) SOCIETY FOR AUTOMOTIVE ENGINEERS SAE-AS5604 Compass, Magnetic, Pilots Standby (Copies of SAE documents are available online at http:/www.sae.org/servlets/index or from SAE World Headquarters, 400 Commonwealth Drive, Warrendale, PA 15096-0001 USA) 2.4
15、Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a spec
16、ific exemption has been obtained. 3. General requirements 3.1 Preproduction sample. When more than 12 months have elapsed since production of the latest accepted lot, a preproduction sample of 3 shaft subassemblies and 24 explosive sequence controls (ESCs) that have met the requirements of 3.2 throu
17、gh 3.5 shall be required. The sample shall be tested as specified in paragraph 4.2. 3.2 Design and construction. The ESC design and construction shall be identical to that subjected to qualification testing and approved for service use. Selector shall be designed to minimize weight and shall not exc
18、eed 1.25 lbs. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32186A (OS) 3 3.2.1 Torque Requirements of Threaded Joints. The torque requirements of subassemblies of the device which contain the provisions for the attachment of SMDC or for th
19、e mounting or installation of the device shall be able to withstand a minimum of 400 inch-pounds of breakaway torque for thread diameters of 1 inch or larger, and a minimum value of one half the maximum torque value specified in Table I for thread sizes under 1 inch in diameter. The torque requireme
20、nt of other subassemblies of the device which could be loosened or disassembled by handling, vibration, shipment, etc. shall withstand a minimum value of 200 inch-pounds for thread diameters of 1 inch or larger and shall withstand a minimum value of one third of the maximum torque value specified in
21、 table I for thread sizes under 1 inch in diameter. See 4.12 TABLE I. Breakaway torque Bolt or Screw size Maximum Torque (inch-pounds) No. 4-40 UNC-3A 3 No. 6-32 UNC-3A 6 No. 8-32 UNC-3A 9 No. 10-32 UNF-3A 13 1/4-28 UNF-3A 30 5/16-24 UNF-3A 60 3/8-24 UNF-3A 80 7/16-20 UNF-3A 100 1/2-20 UNF-3A 150 9/
22、16-18 UNF-3A 200 5/8-18 UNF-3A 300 3/4-16 UNF-3A 400 7/8-14 UNF-3A 600 3.3 Envelope and installation. The dimensions and configuration of the ESC shall be as shown on drawing 850AS135. All parts having the same vendors item number shall be functionally and dimensionally interchangeable in accordance
23、 with MIL-I-8500. 3.4 ESC shaft. The ESC shaft shall consist of an HNS Type I transfer booster charge, per 30003-850AS135 note 8, which aligns with the appropriate shielded mild detonating cord (SMDC) outlet port to propagate explosive energy to the selected output SMDC port without detonation of th
24、e other output SMDC ports. The explosive loaded shaft subassembly shall be capable of detonating an SMDC test tip across a gap which is four times the maximum production gap. 3.5 Inspection 3.5.1 ESC shaft inspection 3.5.1.1 Visual inspection. All ESC shafts manufactured under contract shall be visu
25、ally inspected and screened for defects as outlined in 4.4. 3.5.1.2 Leakage. ESC shafts shall not exhibit a leak rate in excess of 1 x 10-5cc per second of air when tested in accordance with 4.5. 3.5.1.3 Radiographic inspection. ESC shafts shall be free of imperfections when examined radiographicall
26、y in accordance with 4.6. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32186A (OS) 4 3.5.2 ESC inspection 3.5.2.1 Visual inspection. Each ESC manufactured under contract shall be visually inspected and screened for defects as outlined in 4
27、.4. 3.5.2.2 Radiographic examination. ESCs shall be free of imperfections in assembly when examined radiographically in accordance with 4.6. 3.5.2.3 Demagnetization. ESCs shall not deflect an approved pilots standby compass more than three degrees in either direction when tested in accordance with 4
28、.7. 3.5.2.4 Actuation Force. The total linear force required to position the handle from normal to aft initiates shall be 20 to 30 pounds. The torque required to release the handle from the aft initiates position shall be 10 to 20 inch-pounds. See 4.11. 3.6 Ballistic requirements. The ESCs from each
29、 preproduction and production lot shall meet the requirements listed below when subjected to the test prescribed in 4.9. 3.6.1 The ESC when test fired as follows shall initiate the specified outlet SMDC test tip. The remaining two SMDC test tips shall not be initiated, as shown in Table II. TABLE II
30、. SMDC test tip results. Handle Position Inlet Smdc Test Tip Initiated (Port No.) Outlet Smdc Test Tip Propagated (Port No.) Outlet Smdc Test Tip Not Propagated (Port No.) Normal 1 2 3 and 4 Solo 1 4 2 and 3 Aft 1 3 2 and 4 3.6.2 High order detonation. The minimum plate dent for high order detonatio
31、n of the output SMDC test tip on the witness plate shall be 0.001 inch (see 4.9.1.1). 3.6.3 Misfire. There shall be no misfires. See 4.9.1.2. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. Preproduction inspection (see 4.
32、2) b. Conformance inspection (see 4.3) 4.2 Preproduction sample. Before entering into quantity production, an acceptable preproduction sample of 3 shaft subassemblies and 24 ESCs shall be prepared using the same procedures and methods proposed for the production lot. A preproduction sample acceptabl
33、e for functional and environmental testing shall be defined as a sample which has met the requirements of paragraphs 3.2 through 3.5. The contractor shall test the 3 shaft subassemblies in accordance with 4.10 and deliver the ESCs to the activity designated by the contracting agency for sequential t
34、ests. The preproduction test sample shall be subjected to the environmental test sequence shown in Table III. The ESCs shall be fired as described in 4.9 and shall meet the functional requirements referenced in 3.6. Any quantity production prior to notification by the contracting agency of preproduc
35、tion sample acceptability shall be at the contractors risk. The preproduction ESCs shall not be applied as part of the quantity specified for delivery by the contract. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32186A (OS) 5 TABLE III. F
36、irst Article Environmental Test Sequence. Test Sequence Test Description Plan Para Test Group Quantity 9 ESC 9 ESC 6 ESC 3 Shaft 1 Gap Test 4.10 3 2 Life Cycle 4.13 9 3 TSHA Handle position normal (in) Handle position Aft (out) 4.14 4 5 4 5 0 4 Visual Inspection 4.4 9 9 5 Non-Gunfire Vibration Handl
37、e position normal (in) Handle position Aft (out) 4.8.1 4 5 4 5 6 Gunfire Vibration Handle position normal (in) Handle position Aft (out) 4.8.2 4 5 4 5 7 Shock Handle position normal (in) Handle position Aft (out) 4.15 4 5 4 5 8 X-Ray Handle position normal (in) Handle position Aft (out) 4.6 4 5 4 5
38、Functional Testing 9 High Temp (+200F) Handle position normal (in) Handle position Aft (out) Handle position Solo (spacer) 4.9 1 1 1 1 1 1 1 1 10 Low Temp (-65F) Handle position normal (in) Handle position Aft (out) Handle position Solo (spacer) 4.9 1 1 1 1 1 1 1 1 11 Ambient Temp (+65 to +95F) Hand
39、le position normal (in) Handle position Aft (out) Handle position Solo (spacer) 4.9 1 1 1 1 1 1 1 1 4.3 Conformance inspection. All sequencers shall have met the requirements of paragraphs 3.2 through 3.5 as a prerequisite to conformance inspection. The conformance inspection shall consist of the te
40、sts in 4.4 through 4.7, and 4.9 through 4.12. 4.3.1 Sampling. Samples for ballistic test shall be selected from the production lot in accordance with the requirements of Table I of general inspection level II of ANSI/ASQ Z1.4. Two additional ESCs shall be provided with each test sample for investiga
41、tive purposes. Sample ESCs and ESCs made available for investigative purposes shall not be applied as part of the quantity specified for delivery by the contract or order. The production lot size shall be 26 minimum and 280 maximum. 4.4 ESC and esc shaft visual inspection. Visually examine all ESC s
42、hafts prior to ESC assembly and visually examine all assembled ESCs. Reject those with inadequate or illegible descriptive marking or serial numbers, dents, deep scratches, or other defects which may prevent proper installation or function. Provided by IHSNot for ResaleNo reproduction or networking
43、permitted without license from IHS-,-,-MIL-DTL-32186A (OS) 6 4.5 ESC shaft leak test. Each ESC shaft produced under contract shall be leak tested in a dry gas leak tester to determine conformance to 3.5.1.2. Units which exhibit a leak rate in excess of 1x10-5std cc/sec of air at a pressure different
44、ial of 1.0 0.1 atmosphere shall be rejected. 4.6 Radiographic examination 4.6.1 ESC shaft examination. All ESC shafts shall be identified with serial numbers prior to radiographic examination. The ESC shafts shall be arranged on trays or boards in consecutive numerical order, and each radiograph sha
45、ll carry a permanent identification of the ESC shafts displayed thereon. The ESC shafts shall be positioned to give the most revealing cross-section of the shaft. The radiograph identification shall include the complete lot number for the ESC shafts and the span of serial numbers displayed. Disconti
46、nuities in serial numbers shall be identified on the radiographic plate. Defective shafts found by the vendor shall be clearly identified on the radiographic plate and those defective shall be removed from the production lot. Radiographs or copies of the entire production lot shall accompany the bal
47、listic sample to the activity conducting the production lot acceptance test (see 5.1). 4.6.1.1 X-Ray examination. Each ESC shaft shall be x-rayed prior to ESC assembly, in accordance with ASTM E1742/E1742M, to confirm the presence and proper assembly of all parts. Any observable imperfections in ass
48、embly shall be cause for rejection. 4.6.1.2 N-Ray examination. Each ESC shaft shall be N-rayed, prior to ESC assembly, to confirm the presence of the explosive, non-metal parts, no foreign hydrogenous materials and the proper assembly of pyrotechnic/non-metallic materials. Any observable imperfectio
49、n shall be cause for rejection. 4.6.2 ESC examination. All assembled ESCs shall be identified w1th serial numbers prior to radiographic examination. The ESCs shall be arranged on trays or boards in consecutive numerical order, and each radiograph shall carry a permanent identification of the ESCs displayed thereon. The ESCs shall be positioned to give the most revealing cross-section of the ESC. The radiograph identification sh
