1、INCH-POUND MIL-DTL-60277B 26 November 2003 SUPERSEDING MIL-I-60277A 3 January 1989 DETAIL SPECIFICATION INITIATOR, CARTRIDGE ACTUATED, DELAY, M26 ASSEMBLY This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification cover
2、s the requirements for the Cartridge Actuated Initiators M26 (see 6.1). 2. APPLICABLE DOCUMENTS 2.1. General. The documents listed in this section are specified in sections 3, 4 or 5 of this specification. This section does not include documents cited in other sections of this specification or recom
3、mended 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 cited in sections 3, 4 or 5 of this specification, whether or not they are listed. 2.2.
4、 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, the issues of these documents are those cited in the solicitation or contract. SPECI
5、FICATIONS DEPARTMENT OF DEFENSE MIL-A-2550 Ammunition, General Specification For MIL-I-60508 Initiator, Cartridge Actuated, Delay, M6A1, M26, M33, M44, Metal Parts Assembly Comments, suggestions, or questions on this document should be addressed to Commander, Indian Head Division, Naval Surface Warf
6、are Center, Technical Information Branch (Code 4230), 101 Strauss Avenue, Indian Head, Maryland 20640-5035, or emailed to pennamih.navy.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at www.dodssp.daps.mil.
7、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-60277 2 MIL-I-82760 Initiator, Cartridge Actuated, Delay, M6A1, M26, M33, Remanufactured Metal
8、 Parts Assembly STANDARDS MILITARY MIL-STD-1168 Ammunition Lot Numbering and Ammunition Data Card MIL-STD-1916 DOD Preferred Methods for Acceptance of Product MS28741 Hose Assembly, Detachable End Fitting, Medium Pressure (Copies of these documents are available online at http:/assist.daps.dla.mil/q
9、uicksearch/ or www.dodssp.daps.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 publications form a part of this do
10、cument to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation (see 6.2). DRAWINGS NAVAL ORDNANCE STATION, INDIAN HEAD, MD (CAGE Code 19200 and 19203) 8596123 Cartridge, Delay, M90 Assembly 8796826 Box, Fiberboard (Inner) Packing, Ammunition for Ini
11、tiators, Cartridge Actuated, Delay, M4A1, M6A1, M12A1, M26, M33, M44, M45A1 or M49A1 8796827 Box, Packing, Ammunition for Initiator, Cartridge Actuated, Delay, M4A1, M6A1, M12A1, M26, M33, M44, M45A1, or M49Al in Fiber Container, M375 DL8597941 Initiator, Cartridge Actuated, Dela y, M26, Assembly 92
12、16824 Box, Fiberboard (Outer) Alternative, Packing Ammunition, for Initiators, Cartridge Actuated, Delay, M4A1, M6A1, M12A1, M26, M33, M44, M45A1, or M49A1 U.S. AIR FORCE TPO F00-138-3770 Initiators (Application for copies should be addressed to: Commander, Indian Head Division, Naval Surface Warfar
13、e Center, Attn: Technical Information Branch (Code 4230), Indian Head, MD 20640-5035.) 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 o
14、r contract. AMERICAN SOCIETY FOR QUALITY CONTROL (ASQC) ASQC A8402 Quality Management and Quality Assurance Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(Copies of this document are available online at http:/webstore.ansi.org/ansidocstore/default.
15、asp, or from the American Society for Quality, PO Box 3005, 611 E. Wisconsin Ave., Milwaukee, WI 53201-4606.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM E 1742 Standard Practice for Radiographic Inspection (Copies of this document are available online at http:/www.astm.org/cgi-bin/SoftCa
16、rt.exe/STORE/standardsearch.shtml?L+mystore+afpt6301+1062008944 or from the American Society for Testing and Materials Customer Service, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references
17、cited herein, the 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 Materials. All materials used in the manufacture of the initiators shall conform to the specifica
18、tions referred to on the respective drawings unless specific approval in writing covering a departure has been obtained from the cognizant Navy design activity prior to manufacture. When alternate materials or methods of manufacture are specified on the drawings, the bidders selections shall be clea
19、rly stated in the proposal. 3.2 Primary components. For the purpose of this specification, the M90 delay cartridge (Drawing 8596123) is defined as a primary component. Only primary components from a single lot shall be used in a production lot of initiators. One primary component production lot may
20、be used in more than one initiator production lot. 3.3 Breakaway torque. The chamber and cap of each assembled initiator shall withstand a breakaway torque application of 400 inch-pounds without loosening or deformation (see 4.2.3.1). 3.4 Residual magnetism. The initiator shall not deflect the indic
21、ator of the compass more than five degrees in either direction using the procedures in 4.3.2. 3.5 Functional. 3.5.1 Ballistics. Initiators loaded with cartridges from one accepted lot and temperature conditioned shall perform within the pressure values and delay time specified in table I. Pressure v
22、alues shall be recorded at the end of 3 feet of aircraft hose, assembly number MS28741-4, and a pressure chamber with a volume of 1 cubic inch (see figure 1). 3.5.1.1 Initiation. The initiator shall be fired by a source delivering an output pressure of 700 +25, -0 pounds per square inch (gage) (psig
23、) applied at a rate between 10,000psig/sec and 50,000psig/sec at 70 5F. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Pressure values. Pressure (psi) Temperature (F) Minimum Maximum Delay time (sec) (see 6.8.2) -60 to 70 1300 2200 0.350 0.
24、100 65 to 75 1300 2200 0.300 0.050 195 to 205 1300 2200 0.250 0.100 FIGURE 1. Performance test layout (top view). 3.5.2 Misfires. There shall be no misfires. 3.5.3 Mechanical failures. The initiator shall function without mechanical failure (see 6.8.1). 3.6 Workmanship. Initiators shall be free of c
25、racks, splits, incomplete or damaged threads on inlet and outlet ends, or other defects which might prevent proper mating with connecting parts or proper functioning of the device. 3.6.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions, porosity or any similar
26、defect. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.6.2 Burr. No part shall have a burr which might interfere with the assembly or function of the item or which might be injurious to personnel handling the item. 3.6.3 Foreign matter. No part or
27、 assembly shall contain chips, dirt, grease, rust, corrosion or other foreign matter. 3.7 Radiographic examination. Each initiator assembly shall be radiographically examined for defects as specified in 4.4. 3.8 Component parts. All component parts shall meet the applicable requirements of MIL-I-605
28、08 or MIL-I-82760 prior to assembly. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. Quality conformance inspection 4.1.1 Quality assurance terms and definitions. Reference shall be made to ASQC A8402 to define the quality
29、 assurance terms used. 4.1.2 Inspection. Inspection shall be in accordance with MIL-A-2550 and ASTM E1742. 4.2 Inspection provisions. 4.2.1 Lot. 4.2.1.1 Submission of product. Unless otherwise specified by the contracting activity formation and identification of lots shall be in accordance with MIL-
30、STD-1916. 4.2.1.2 Size of lot. A lot shall consist of an identifiable group of assembled initiators containing metal parts assemblies produced by a homogeneous process and loaded with one lot of accepted cartridges. 4.2.2 Examination. One-hundred percent examination shall be performed for all critic
31、al defects. Examination for major and minor defects shall be performed in accordance with the classification of defects, using the sampling plan and associated criteria specified in the contract (see 6.2 and 6.3). All nonconforming material shall be rejected. Four power (4X) magnification may be use
32、d for inspection of such defects as burr and foreign matter. When compliance with the applicable requirement is in doubt as a result of visual examination, the characteristic shall be measured or gaged to determine acceptability. 4.2.2.1 Cartridge, Delay, M90, Drawing 8596123, covering a detail of D
33、rawing 8597941. Characteristic Defect Method of Inspection Critical 1 Mixed cartridges Visual 2 Metal defective Visual 3 O-ring missing Visual 4 Sealing disc missing, damaged, or improperly secured Visual 5 Marking missing, incorrect, or illegible Visual Provided by IHSNot for ResaleNo reproduction
34、or networking permitted without license from IHS-,-,-Characteristic Defect Method of Inspection Major 101 O-ring split, cut, or cracked Visual 102 Foreign matter present Visual Minor 201 Case scratched, wrinkled, bulged, or dented Visual 202 Varnish missing or inadequate Visual 4.2.2.2 Assembly, Dra
35、wing 8597941, less Drawings 8594745, 8595254, 8593313, 8593314, and 8596123. Critical 1 Protrusion of firing pin Gage 2 O-ring missing Visual Major None defined Minor None defined 4.2.2.3 Assembly, Drawing 8597941, less Drawings 8595254, 8593314, 8593313, and 8596123, and specifications MIL-C-5501/1
36、0 and MIL-C-5501/11. Critical 1 Shear pin not engaged in firing pin Visual/Manual 2 Shear pin set screw missing Visual Major 101 O-ring missing or not lubricated Visual 102 Thread damaged Visual 103 Foreign matter present Visual Minor None defined 4.2.2.4 Assembly, Drawing 8597941, less Drawings 859
37、5264 and 8593314, and specifications MIL-C-5501/10 and MIL-C-5501/11. Critical 1 Cartridge loose Visual/Manual 2 Cartridge retainer loose Visual/Manual 3 Metering slot of cartridge retainer missing Visual 4 Elongated slot of cartridge retainer missing Visual Major None defined Provided by IHSNot for
38、 ResaleNo reproduction or networking permitted without license from IHS-,-,-Characteristic Defect Method of Inspection Minor None defined 4.2.2.5 Assembly, Drawing 8597941, less specifications MIL-C-5501/10 and MIL-C-5501/11. Critical 1 Cartridge retainer position improper Gage 2 Foreign matter in g
39、as port Visual Major 101 Length from cap boss face to gas port face, max Gage 102 Set screw missing, loose or above flush Visual/Manual Minor None defined 4.2.2.6 Assembly, Drawing 8597941. Critical 1 Base of firing pin housing not in complete contact With face of cartridge Manual/X-ray 2 Any part m
40、issing, except as otherwise classified Visual/X-ray 3 Improper assembly Visual/X-ray 4 Marking missing, Incorrect, or Illegible Visual Major 101 Height of cap, max Gage 102 Set screw not covered with barrier material Visual Minor 201 Total length, max Measure . 202 Location of labels Incorrect Visua
41、l 203 Protective cap or plug missing Visual 204 Protective finish inadequate or defective Visual 4.2.2.7 Box, Fiberboard (Inner) Ammunition, Drawing 8796826. Critical None defined Major None defined Minor 201 Contents loose Manual 202 Box damaged Visual 203 Sealing strip broken or missing Visual 204
42、 Marking missing, incorrect, or illegible Visual 205 Cut, damaged, or improperly sealed bag Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2.2.8 Box, Ammunition Packing, Drawing 8796827. Characteristic Defect Method of Inspection Critical N
43、one defined Major None defined Minor 201 Contents loose Manual 202 Strapping missing, loose, broken, or improperly engaged Visual/Manual 203 Contents of box exposed Visual 204 Box damaged Visual 205 Marking missing, incorrect, or illegible Visual 206 Number of units incorrect Visual 4.2.2.9 Box, Fib
44、erboard (Outer) Alternative Ammunition Packing, Drawing 9216824. Critical None defined Major None defined Minor 201 Contents loose Manual/Visual 202 Carton broken or damaged Visual 203 Number of units contained incorrect Visual 204 Marking missing, incorrect, or illegible Visual 205 Tape incomplete
45、Visual 4.2.3 Inspection testing. The following tests shall be performed in accordance with the provisions of 4.3. 4.2.3.1 Breakaway torque. Each assembly shall be subjected to the breakaway torque test of the threaded joint between the cap and the chamber. Failure of any assembly to comply with the
46、requirements of 3.3 shall be cause for rejection of the assembly. 4.2.3.2 Residual magnetism. Each initiator shall be subjected to the test for excessive residual magnetism as specified in 4.3.2. Failure of any initiator to comply with the requirement of 3.4 shall be cause for rejection of the initiator. 4.2.3.3 Functional tests. The following tests shall be performed by the Government. 4.2.3.3.1 Ballistics. Twenty-one units shall be tested to determine compliance with the
