1、MIL-R-60875 (MU) 28 September 1973 MLLITARY SPECIFICATION REMOVER, AIRCRAFT CANOPY, M8A2 METAL PARTS ASSEMBLY 1. SCOPE 1.1 This specification covers Remover, Aircraft Canopy, M8A2, Metal Parts Assembly. conjunction with other propellant actuated devices in aircrew emergency escape systems. The assem
2、bly wIll ultimately be loaded and used in 2. APPLICABLE DOCUMENTS 2.1 invitation for bids form a part of this specification to the extent specified herein: The following documents of the issue in effect on date of SPECIFICATIONS Federal QQ-A -.601 Aluminum AlIoy Sand Castings Mi lit ar y MIL-A-2550
3、- MIL-C-6021 - MIL-A - 2 118 O - MIL- C-46227 - STANDARDS Mi li tar y MIL-STD-105 - MIL-STD-109 - MIL- STD-Li. 13 - Amunition and Special Weapons, General Specification for Castings , Classification and Inspection Aluminum Alloy Casting, High Strength Components for Propellant Actuated Devices , Gen
4、eral Specification for Sampling Procedures and Tables for Inspection by Attributes Inspection Terms and Definitions Visual Inspection Guide for Rubber O-Rings FSC 1377 1- / y=- - - THIS DOCUMENT CONTAINS / 2 PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license
5、from IHS-,-,-_ MIL-R-60875 13 7777706 0341756 O MIL-R-60875 (MU) DRAWINGS Munit ions Command C8837890 - Carton, Packing, Ammunition for Remover, Aircraft Canopy M8A1 or M8A2 with Cartridge M150 Amunition for (1) Remover, Aircraft Canopy, M8A1 or M8A2 with Cartridge M150 Remover, Aircraft Canopy, M8A
6、1 or M8A2, with Cartridge M150 LI-10522143 - Inspection Equipment List for Remover, Aircraft Canopy M8A2 Metal Parts Assembly Metal Parts Assembly C9240994 - Carton, Alternative Packing, C9 230 16 1 - Box, Packing, Amunition for (1) F- 10522 143 - Remover, Aircraft Canopy, M8A2 (Copies of specificat
7、ions, standards, and drawings required by contractors in connection with specific procurement functions should be obtained from the procuring agency or as directed by the contracting officer.) 2.2 Other publications.-The followng document forms a part of this specification to the extent specified he
8、rein, the issue in effect on date of invitation for bid or request for proposal shall apply. Unless otherwise indicated, ASA B46.1 - Surface Texture (Application for copies should be addressed to the American National Standards Institute (ANSI), 1430 Broadway, New York, New York 10018. 3. REQUIREMEN
9、TS 3.1 General.-Materials, parts, and assemblies shall comply with the requirements specified on the applicable drawings, reference specifications, and the following: 3.2 Material.-The contractor shall be responsible for selecting from the classification list contained in the raw material specificat
10、ions, the surface and physical condition of the raw material intended for use in manufacture. 3.3 Physical Properties.-Physical properties required by the drawing shall be uniform throughout the part within specified tolerances. for all alloy steel parts shall be achieved by quenching and tempering.
11、 Requirements Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M1.L-R-bO75 13 W 77777Ob 03Ll1757 2 W MIL-R-608 75(McT) 3.4 Hydrostatic Pressure.-The outside tube, i10522060, and inside tube, D10522036, shall withstand a hydrostatic pressure of 2500 po
12、unds per square inch (psi) minimum, for 15 seconds, minimum, without deformation or mechanical failure (see 6.2). 3.5 Manual Function.-Without electrical power, and with the clutch disengaged, the pull force required to extend the inside tube assembly shall not exceed 40 pounds. 3.6 Reversibility Lo
13、ad.-The remover shall be capable of withstanding a load of 2500 pounds minimum in tension and 1740 pounds minimum in compression at a mid-stroke of approximately 5 inches. The remover shall not travel or unlock due to the applied load. 3.7 Operating Performance.-The remover shall be cycled and shall
14、 be capable of operating to the loads described by the load curves A, B, and C of Figure 1 (see 6.3) and shall comply with the following: 3.7.1 The motor running current dran under load curve B of Figure 1 shall not exceed 13 amperes at 26 to 30 volts D.C. at ambient conditions. 3.7.2 The motor runn
15、ing current drain under load curve C of Figure 1 shall not exceed 20 amperes at 26 to 30 volts D.C. at ambient Conditions. 3.7.3 Time required for linear extension of the remover for a normal stroke of 9.38 inches and under load curve B of Figure 1 shall not exceed 12 seconds using the power require
16、ments specified in 3.5.1, 3.7.4 Time required for linear extension of the remover for a normal stroke of 9.38 inches and under curve C of Figure 1 shall not exceed 15 seconds using the power requirement specified in 3.7.2. 3.7.5 Time requirement for linear retraction of the remover for a normal stro
17、ke of 9.38 inches under curve A of Figure I. shall not exceed 15 seconds at 26 to 30 volts D.C. with a running current drain not to exceed 15 amperes at ambient conditions. 3.7.6 When the load aids the operation of the remover for the full stroke of 9.38 inches, the operating time shall be 5 seconds
18、 minimum to 10 seconds maximum and the running current shall not exceed 10 amperes at 26 to 30 volts D.C. 3.7.7 There shall be no structural failure of any component under the inertia loads imposed by the sudden interruption of electrical power, 3.7.8 At the end of the duty cycle for normal load cur
19、ve B, Figure 1, the remover shall pull against the stop with a force, known as cinch-down load, of 1000 to 1450 pounds. Under this cinch-down load requirements, the load limit switch shall de-energize the remover electic motor. O 3 Provided by IHSNot for ResaleNo reproduction or networking permitted
20、 without license from IHS-,-,-MIL-R-bo875 33 m 7777706 0343758 4 m MIL-R-608 7.5(MU) 3.7.9 Time required to engage clutch shall not exceed 500 milliseconds (see 6.4). 3.7.10 After the remover has cinched down, the clutch shall be disengaged. 500 milliseconds (see 6.5). The time required to disengage
21、 the clutch shall not exceed 3.7.11 The remover shall not fail to operate under normal load curve B of Figure 1 at a voltage input of 18 volts D.C. 3.8 Metal Parts Assembly.-Parts shall be combined to produce an assembly which conforms to the requirements of the metal parts assembly drawing. 3.9 Pro
22、tective Finish.-Protective finish shall be in accordance with the applicable specifications and drawings and shall apply to all surfaces of the component regardless of configuration. 3.10 Workmanship-.-The requirements for workmanship are as specified on the applicable drawings, reference specificat
23、ions and the following: 3.10.1 Metal Defects,-Components shall be free from cracks; splits, or other metal defects. 3.10.2 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. 3.10.3 Foreign Matte
24、r.-Chips, dirt, grease (except where required), rust, corrosion, or other foreign matter shall be removed. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. -Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspecti
25、on requirements as specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to p
26、erform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements, 4.1.1 Quality assurance terms and definitions.-Reference shall be made to MIL-STD-109 to define quality assurance terms used. 4
27、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-60875 13 977790b 03LIL757 b MIL-R-60875 (MU) 4.1.2 inspection.-inspection shall be in accordance with MIL-A-2550 except as specified herein, 4.2 First article sample. 4.2.1 Initial production sam
28、ple,-At the beginning of regular production a sample shall be submitted in accordance with contract requirements and shall consist of 5 assemblies, 10 sets of unassembled parts and 50 shear pins from the same lot of shear pins testec by the contractor. The assemblies and shear pins shall be subject-
29、d to the tests in 4.4. The sample shall be manufactured using the same materials, equipment, processes, and procedures as used in regular production. All parts and materials including packaging and packing, shall be the same as used for regular production and shall be obtained from the same source o
30、f supply. 4.2.1.1 Examination and test.-After inspection and provisional acceptance at source, the sampie shall be inspected for all requirements of the drawings and Specifications at a Government laboratory or such other facility specified in the contract. . 4.2.1.2 Initial production sample failur
31、e,-Failure of the sample to comply with the requirements of the drawings and specifications shall result in sample disapproval. 4.3 Inspection provisions. 4.3.1 Lot. - 4.3.1.1 Submission of product. -The product shall be submitted in accordance with MIL-STD- 105. 4.3.1.2 Component and Subassembly In
32、spection shall be in accordance with MIL-C-46227, Category A, except as specified herein. 4.3.1,3 Size of lot.-For the purpose of identification and shipment, the shipping lots of metal parts assemblies shall consist of 1200 removers, maximum, exclusive of test samples, provided the homogeneity requ
33、irements of manufacturing process has been retained throughout the inspection lot. A smaller lot may be shipped upon approval of the contracting officer. 4.32 for all critical defects. Examination for major and minor defects shall be performed on a defect basis in accordance with the classification
34、of defects contained herein using the sampling plan and associated criteria in Table I and II. For an individual defect (single characteristic), the criteria in Table I shall be used. For total defects within a major or minor group, the criteria in Table II shall be used. All nonconforming material
35、shall be rejected, Inspection for rubber O-rings shall be in accordance with MIL-STD-413. The roughness comparison specimens prescribed Examination.-One hundred percent examination shall be performed 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
36、MIL-R-bO75 33 W 7977706 0343760 2 MIL-R-60875 (MU) 4.3.2 (Contd) in ASA B46.1, shall be used as a basis of comparison for surface roughness determination. Four power (4X) magnification may be used in performing visual examination for such defects as burr and foreign matter. TABLE I Lot Size Sample S
37、ize Major Accept Reject 1- 300 100% Examination 301 - 1300 110 1 2 1301 - 3200 150 2 3 3201 - 8000 2 25 3 4 8001 - 22000 300 4 5 TABLX II Total Allowable Defects Per Sample Size 150 - 110 - Sample Sizes for Major Defects - Number of Characteristics in Class 2-3 4-7 8 - 19 20 - 43 over 43 1 2 2 3 3 4
38、 4 5 6 8 150 Sample Sizes for Minor Defects - - 110 - Number of Characteristics in Class 2-3 2 3 4-7 3 4 8 - 16 4 5 17 - 48 6 8 over 48 8 11 Minor Accept 2 3 4 5 225 - 3 4 5 8 11 225 - 4 5 8 11 17 Reject 3 4 5 6 300 - 4 S 7 10 14 3 O0 - 5 7 10 14 20 6 Provided by IHSNot for ResaleNo reproduction or
39、networking permitted without license from IHS-,-,-MIL-R-60875 (MU) CRITICAL 1. 2. Improper or insecure assembly 3. Loose or improper wiring 4. Improper soldering 5. Gas port hole obstructed 6. Any part missing 7. Marking missing, incorrect or illegible 8. Burr 9. Foreign matter Length of firing pin
40、striker MAJOR None defined MINOR None defined CRITICAL None defined MAJOR None MINOR 201 202, 203. 204, 205. 206. 207. 208. defined Contents loose Top of box loose Strapping, missing, loose or improperly assembled Supports or fillers missing from box Box damaged Seal missing or improperly positioned
41、 Mot,or wires loose Marking missing, incorrect or illegible Manual Manua 1 Manual & Visual Visual Visual Visual Visual Visual 4.3.2.1 Metal Parts Assembly, Drawing $10522143. Defects Method of Inspection Gage Manual & Visual Manual & Visual Visual Visual Visual Visual Visual Vis ua 1 4.3.2.2 Packing
42、 in Inner Box, Drawing C8837890. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-60875 (MU) 4.3.2.3 Carton, Packing, Alternative Cg240994. Defects Method of Inspection CRITICAL None defined MAJOR None defined MINOR 201. Contents loose 202. Ca
43、rton broken or damaged 203. 204. Marking missing, incorrect or illegible 205. Tape incomplete Number of units contained incorrect 4.3.2.4 Packing in Outer Box, Drawing 9230161. CRITICAL None defined MAJOR None defined MINOR 201. 202. 203 . 204 . 205. 206 . 208 . 207 Contents loose Liner, fillers, cu
44、shings or spacers missing Strapping missing, loose or improperly assembled Hardware missing, loose or improperly engaged Box damaged Contents of box exposed Car seal, missing or improperly sealed Marking missing, incorrect or illegible Manual Visual Visual Visual Visual Manual Visual Visual Visual V
45、isual Visual Visual Visual 4.3.3 Inspection testing.-The following tests shall be performed in accordance with 4,4. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-60875 13 m 7797706 03LI1763 m MIL-R-60875 (MU) 4.3.3.1 Hardness.-Fifty units f
46、rom each heat treated lot of components shall be tested for compliance with drawing requirement. to comply with drawing requirements shall be cause for rejection of the lot. Failure of any unit e 4.3.3.2 Gear box tension test.-Sample size and acceptance criteria shall be in accordance with MIL-A-211
47、80. Preparation of Gear box casting for tension test shall be as specified in 4.4,3.1 through 4.4.3.1.1. 4.3.3.3 Shear pin strength.-Fifty pins from each lot shall be tested for compliance with the values noted in the applicable drawing. Failure of any pin to comply with the drawing requirements sha
48、ll be cause for rejection of the lot. 4.3,3,4 Hydrostatic pressure.-Each inside and outside tube shall be subjected to the hydrostatic pressure test. with the requirements of 3.4 shall be cause or rejection of the item. Failure of any item to comply 4.3.3.5 Protective finish.-The number of specimens
49、 and acceptance criteria for protective finish tests shall be in accordance with the applicable Military Standards listed on the drawing. 4.3.3.6 Manual function.-Each remover shall be tested for the pull force required to extend the inside tube. Failure of any remover to comply with the requirements of 3.5 shall be cause for rejection of he remover. 4.3.3.7 Reversibility load,-Each
