1、/ s ?-+ :h MIL- R- 50 7 2 9A (MU) .Q MIL-R-50727A 33 777770b 0933727 2 M - 7 = 3. - 14 November 1972 SUPERSEDING MIL-R-50729 (MU) 16 August 1971 MILITARY SPECIFICATION REMOVER, AIRCRAFT CANOPY, M8A1 REMANLTFACTURED METAL PARTS ASSEMBLY 1. SCOPE 1.1 This specification covers Remover, Aircraft Canopy,
2、 M8A1 Remanufac- ture Metal Parts Assembly and modification requirements to incorporate the new load limiting device in the gear box assembly. be loaded and used in conjunction with other propellant actuated devices in aircrew emergency escape systems. The assembly will ultimately 2. APPLICABLE DOCU
3、MENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal form apart of this specification to the extent specified herein. SPECIFICATIONS Federal QQ-P-416 Military MIL-A-2550 MIL- C- 5 541 MIL-L-46010 - Plating, Cadmium (Electrp Deposited) - Ammu
4、nitions and Special Weapons, General Speci- - Chemical Films and Chemical Film Materials for - Lubricant, Solid Film: Heat Cured, Corrosion fication for Aluminum Alloys Inhibiting STANDARDS Military MIL-STD- 105 MIL-STD- 109 - Quality Assurance Terms and Definitions - Sampling Procedures and Tables
5、for Inspection by Attributes DRAWINGS Munitions Command F10522121 - Remover, Aircraft Canopy, M8A1, Metl Parts Assembly FSC 1377 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-b MIL-R-50727A 33 777770b 0433728 4 MIL-R- 507 29A (MU) P DRAWINGS (Contd
6、) Munitions Command C8837890 - Carton, Packing, Ammunition for Remover, Aircraft C 9240994 - Carton, Alternative Packing, Amunition for (1) C9230161 - Box, Packing, Ammunition for (1) Remover, Aircraft IEL-10522121 - Inspection Equipment List for Remover, Aircraft Canopy Canopy M8 or M8A1 with Cartr
7、idge M150 Remover, Aircraft Canopy M or M8A1 with Cartridge M150 Canopy M8 or MAl, with Cartridge M150 M8A1 Metal Parts Assembly (Copies of specifications, standards and drawings required by contractors in connection with specific procurement functions should be obtained from the procuring activity
8、or as directed by the contracting officer.) 2.2 Other publications - The following document forms a part of this specification to the extent specified herein, Unless otherwise indicated, the issue in effect on date of invitation for bid or request for proposal shall apply, ASA 546.1 - Surface Textur
9、e (Application for copies should be addressed to the American National Standards Institute (ANSI) 1430 Broadway, New York, N. Y. 10018). 3. REQUIREMENTS . . . . 3.1 General - Materials, parts and assemblies shall comply with the require- ments specified on the applicable drawings and referenced spec
10、ifications. 3.2 Hydrostatic pressure - The outside tube, C10522032 and inside tube C10522036 shall withstand a hydrostatic pressure of 2500 pounds per square inch (psi) for 15 seconds, minimum, without deformation or mechanical failure (see 6.2). 3.3 Manual function - Without electrical power and wi
11、th the clutch disengaged, the pull force required to extend the inside tube assembly shall not exceed 40 pounds, 3.4 Reversibility load - 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 in
12、ches. unlock due to the applied load. The remover shall not travel or 3.5 Operating performance - The remover shall be cycled and shall be capable of operating to the loads described by the load curves A, B gnd C of Figure 1 (see 6.3) and shall comply with the following: 2 Provided by IHSNot for Res
13、aleNo reproduction or networking permitted without license from IHS-,-,-T MIL-R-50727A 13 = 777790b Oq31927 b M 3.5.1 The motor running current drain under load curve B of Figure 1 shall not exceed 13 amperes at 26 to 30 volts D.C. at ambient conditions. 3.5.2 The motor running current drain under l
14、oad curve C of Figure 1 shall not exceed 20 amperes at 26 to 30 volts D.G. at ambient conditions. 3,5.3 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 requirement specified in 3.5.1.
15、3.5.4 stroke of 9.38 inches and under curve C of Figure 1 shall not exceed 15 seconds using the power requirement specified in 3.5.2. Time required for linear extension of the remover for a normal 3.5.5 Time requirement for linear retraction of the remover for a normal stroke of 9,38 inches under cu
16、rve A of Figure 1 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 3.5.6 When the load aids the operation of the remover for the full stroke of 9.38 inches, the operating time shall be 5 seconds minimum to 10 seconds maxim
17、um and the running current shall not exceed 10 amperes at 26 to 30 volts D.C. 3.5.7 There shall be no structural failure of any component under the inertia loads imposed by the sudden interruption of electrical power, 3.5.8 At the end of the duty cycle for normal load curve By Figure 1, the remover
18、shall pull against the stop with a force, known as cinch-down load. of 1000 to 1450 pounds, Under this cinch-down load requirement, the load- limit switch shali de-energize the remover 3.5.9. Time required to engage clutch shall (see 6.4). 3,5.10 After the remover has cinched down, The time required
19、 to disengage the clutch shall (see 6.5). electric motor, not exceed 500 milliseconds the clutch shall be disengaged: not exceed 500 milliseconds 3.5.11 The remover shall not fail to operate under normal load curve B of Figure 1 at a voltage imput of 18 volts D.Ci 3.6 The Gear Box and Motor Mount As
20、sembly which were manufactured to the original drawing FF9838 shall be retained as a matched set. 3.6.1 The remover metal parts assembly shall contain the following new parta Those parts which are to be replaced are considered 100% throwaway items. 3 Provided by IHSNot for ResaleNo reproduction or n
21、etworking permitted without license from IHS-,-,-NAME OF PART Sleeve (Bulk Material) Actuator Switch (3 reqd) Detent Assembly “O“ Ring (2 reqd) Pin Shear Plug, Shipping Screw, Shear (2 reqd) Screw Spring, Detent Level Spring Spring, Piston (2 reqd) . Spring , Clutch Packing “O“ Ring Packing “O“ Ring
22、 Packing “O“ Ring Packing “O II Ring Packing “O“ Ring Packing “O“ Ring Packing “O“ Ring Packing “O“ Ring Clamp, Cushion Support (2 reqd) Spring, Helical Extension Bushing (for adapter) Cap, Plastic Dust Nut Pin, Spring Pin, Spring Pin, Spring Pin, Spring Pin, Spring Pin, Double Roll Pin, Spring Pin,
23、 Spring Screw, Set *Detent, Worm (2 reqd) *Detent, Shaft *Spring (3 reqd) *Key (2) MIL-R-50729A 13 9999906 0432930 2 *Replace only to update remover to lagest configuration, h DWG. NO. MIL- I- 631 Cl0522135 B10522055 MS 28 7 7 5 - 0 08 A10522065 A8593299 B105 2 206 2 B105 22061 FA 29923 B105 22090 B
24、 105 22068 B10522110 MS 9021-031 AN6227-7 MS28775-013 MS28775-332 MS29513-127 MS 295 13- 134 MS29513- 142 MS29513-145 MS21919-H4 Bi05 2 2095 AN3420- 8 MS 25177- 22 21083-C6 MS16562-50 C10543076-3 MS16562-47 MS9048-076 MS16562-30 MS9048- 164 10543076-2 MS16562-43 MS16562-29 MS51693-20 B10522037 C105
25、22152 Cl0522153 MS24585-50 *Replace only after the modification has been accmplished. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c MIL-R-50727A 33 777970b 0433733 4 W MIL-R-50729A(MU) 3.6.2 Any spring pin removed from an assembly or if found d
26、efective shall be replaced with a new spring pin. 3e603 Bolts, nuts, screw inserts or other threaded components which show evidence of cross threading, stripping or excessive wear shall be replaced. 3.6.4 Bearing, ball bearing screw assemblies, and ball bearings which show evidence of roughness, bin
27、ding or damage shall be replaced. 3.6.5 Switches which contain a loose plunger, damaged wiring, gummy or defective plunger seals shall be replaced, 3,6.6 Electric motor shall be replaced if it is unreparable. 3.6.7 Any gear with excessive back lash, worn or broken teeth or improper mating, shall be
28、replaced with a new gear. 3.6.8 Gear Box and Ballistic Assembly - Any part in the Gear Gox and Ballistic Assembly which shows evidence of distortion, excessive wear, loose- ness, or any other damage shall be repaired or replaced with a new part. 3.6.9 Gear Box lubrication - The grease in the Gear Bo
29、x cavity shall be removed and replaced with fresh grease conforming to the requirements of the applicable grease specification. 3.7 Protective finish - Protective finish shall be in accordance with the applicable specifications and drawings and shall apply to all surfaces of the component regardless
30、 of configurations, and components undergoing modification shall have the existing protective finish stripped and the specified protective finish re-applied. (See 6.6), All remanufactured exterior components 3.8 Workmanship.- The requirements for workmanship are as specified on the applicable drawin
31、gs, referenced specifications and the following: 3,B.l Metal defects - Components shall be free from cracks, splits or other metal defects. 3.8.2 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 it
32、em. 3.8.3 Foreign matter - Chips, dirt, grease (except where required), rust, corrosion, or other foreign matter shall be removed. 3.9 Metal Farts Assembly - Parts shall be combined to produce an assembly which conforms to the requirements of the metal parts assembly drawing and the f ollcwing : 5 P
33、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I -_ MIL-R-50727A 13 W 777770b 0431932 b HIL-R-50729A(MU) F 3.9,1 The modified metal parts assembly shall contain the following 6 newly designed components and sub-assemblies (See 6.7.2). NOMENCLATURE OL
34、D DWG NO. NEW PROD NO. NO. REQD Gear Clutch ASSY Shims De tent , Worm Detent, Shaft Retainer Cl05 22155 B10543075 C1052215 2 Cl0522153 Cl0522154 Worm Shaft Assy Cl0522091 Cl0522157 Spring B10522090 C105 22 15 6 I Spacer Spring Pin, Spring Insert, Screw Locking Screw B10543073 MS24585-50 MS16562-24 M
35、S 2 1209- C4 2 O MS5 195 7- 17 - 1 2 1 1 1 1 3 2 2 2 - 3.9.2 The modified metal parts assembly shall contain the following components which shall be modified to the applicable modification drawing: NO! ENCLATURE ORIG NO, MOD DWG. NEW PRODUCTION REQD DWG. (See 3.9.2.1) Gear Box Assy F10522096 - Rev.
36、B, Worm C105 22083 Cl0522148 C 105 2 2 13 9 Tube, InnerJc D10522036 D10522036 Rev. A, Gear, Bevel C10522085 B105 22150 Cl0522151 Shaft , Worm C10522084 Cl0522146 Cl0522147 *Note: Strip Emralon coating and degrease chrome plating, lubricant in accordance with appropriate drawing, Apply solid film 3.9
37、.2.1 New production parts shall be in accordance with the applicable new production drawing. 3.9.2.2 The gear box and motor mount assembly which was manufactured to the original drawing FF9838 shall be retained as a matched set. 3.9.2.3 In the modification of the M8A1 Remover to the M8A1 with the ne
38、w load limiting device in the gear box assembly, the following components shall be deleted and discarded: (See 6.7.2). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-50727A 33 777790b 0433733 NOMENCLATURE Spring Hub Rivet Pin, Spring Pin, Sp
39、ring DWG. NO, MIL- R- 5 O 7 29A (MU) B10522090 (See 3.9.1) 1 B 105 2 2086 1 MS20470 3 MS16562-35 3 MSl6562-33 1 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection - Unless otherwise specified in the con- tract or purchase order, the supplier is responsible for the performance of all i
40、nspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the supplier may use his own or other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. form any of the inspection
41、s set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. The Government reservesthe right to per- 4.1.1 Quality assurance terms and definitions - Reference shall be made to MIL-STD-109 to define the Quality Assur
42、ance terms used. 4.1,2 Inspection - Inspection shall be in accordance with MIL-A-2550 except as specified herein. 4.2 Inspection provisions 4.2.1 Lot 4.2.1.1 Submission of product - The product shall be submitted in accord- ance with MIL- STD- 105. 4.2,1.2 Size of lot - For the purpose of identifica
43、tion and shipment, the shipping lots of metal parts assemblies shall consist of 1200 removers, maximum, exclusive of test samples, provided the homogeneity of remanufactur- ing process has been retairzd throughout the inspection lot. A smaller lot may be shipped upon approval of the contracting offi
44、cer. 4.2.2 Examination - The roughness comparison specimens prescribed by ASA B46.1 shall be used as a basis of comparison for surface roughness deter- mination. Four power (4X) magnification may be used in performing visual examination for such defects as burr and foreign matter. 4.2.2.1 Reclaimed
45、parts - Examination of resuable parts, which require no reprocessing shall be limited to inspection of defects that require visual type defects. All nonconforming parts shall be rejected. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-R-5072A
46、 13 W 777770b 0431q3q T MIL-R-50729A(MU) 4.2.2.2 * Reprocessed parts - One hundred percent examination shall be per- formed for all critical defects, Examination for major and minor defects shall be performed on a defect basis in accordance with the classification of defects contained herein, using
47、the sampling plan and associated criteria in Tables I and II. For an individual defect (single characteristic) the criteria in Table 1 shall be usedo For total defects within a major or minor group, the criteria in Table II shall be used. . All nonconforming material shall be rejected. TABLE I Ma j
48、or Minor Lot Size Smple Size Accept Reject Accept Reject 1 - 300 100% Examination 301 - 1300 110 1 2 2 3 1301 - 3200 150 2 3 3 4 3201 - 8000 225 3 4 4 5 8001 - 22000 300 4 5 5 6 TABLE II I Total Allowable Defects Per Sample Size Sample Sizes -far Maior Defects 110 150 2 25 300 Number of Defects in C
49、lass 2- 3 4- 7 8 - 19 20 - 43 Wer - 43 1 2 3 2 3 4 3 4 5 4 5 8 6 8 11 4 5 7 10 14 Sample Sizes for Minor Defects 110 150 225 300 Number of Defects in Class 2- 3 4- 7 8 - 16 17 - 48 Over - 48 8 2 3 4 5 3 4 5 7 4 5 8 10 6 8 11 14 8 11 17 20 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R- 507 29A (MU) MIL-R-50729A 13 = 944790b 0433935 3 5. 4.2.2
