1、! MIL-A-50372( MU) - 20 January 1970 MILITARY SPECIFICATION ACTUATOR, ROTARY 1000-41 ASSEMBLY 21 1. SCOPE 1.1 This specification covers Actuator, Rotary 1000-41 Assembly, loaded with cartridge 5000-1, for use in conjunction with other propellant actuated devices in aircrew emergency escape systems.
2、2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specificatim to the extent specified herein. SPECIFICATEONS Mi lit ar y MIL-A- 25 50 STANDARDS Military MIL- SID- 105 MIL-STD-109 MS-28741 DRAWINGS M
3、unitions Command Cg218443 cg218444 Talley Indus tries 1000-41 - Ammunition and Special Weapons, General Specification for - Sampling Procedures and Tables for Inspection - QuaXty Assurance Terms and Definitions - Hose Assembly - Detachable End Fitting, Medium by Attributes . Pressure - Carton, Packi
4、ng, Ammunition, for Rotary - Box, Packing Ammunition, for Rotary Actuator, Actuator, 1000 or 1925 Series 1000 or 1925 Series -. ?. ,- (Code Eden%. No. 12116) - Rotary Actaator Assembly Fsc 1-377 A Q Licensed by Information Handling Services -. MIL-A-50372 13 7777906 0326775 1 MIL-A-50372(MU) 2.1 (Co
5、ntd) (Copies of specifications, standards and drawings , required by Suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3.1 General.-Materials, parts and assemblies shall comply with the requirements
6、specified on the applicable drawings and referenced specifications. 3.2 Breakaway torque.-All threaded joints of the assembled Actuator shall withstand a breakaway torque application of 200 inch pounds without loosening or deformation. 3.3 Residualmagnetism.-The Actuator shall not deflect the indica
7、tor of the approved compass more than 3 degrees in either direction when passed in front of the compass at a distance of 6 inches. 3.4 Initial lock security.-The lock pin shall secure the piston component of the ball screw assembly so that the strap drum component is not free to rotate. 3.5 Function
8、al. 3.5.1 The actuator shall not fail to fire. 3.5.2 The actuator shall hction without mechanical failure (See 6.2). 3.5.3 Initiation.-The actuator shaU be fired by a source delivering an output equal to that of an M3A1 Initiator at the end of 15 feet of aircraft hose, Size 4, Ms28741, at TO0 f TF.
9、L 3.5.4 Ballistics .-The Actuator loaded with an accepted cartridge and temperature conditioned, when fired, shall separate and eject the load speci- fied in Table I from the approved simulated aircraft seat within an operating time of .150 seconds minimum and .5O seconds maxhum and function within
10、the performance limits specified in Table I. TABLE I - Pressure (psi) Acceleration (g) Ejected Load Temperature 65OF to 75OF 2000 to 4800 0.85 to 3.0 * 400 lbs. 400 lbs. * 100 lbs. -65OF to -70F * 200F to 205OF Jc * Information oniy. 2 I- Licensed by Information Handling ServicesMIL-A-58372 13 E 997
11、790b 032679h 3 m - - 3.6 Workmanship.-The requirements for workmanship are as specified on the applicable drawings, referenced specifications and the following: 3.6.1 Metal defects,-All components shall be free from cracks, splits, cold shuts, inclusions, porosity or any similar defects. 3.6.2 Burr.
12、-T!he part shall not have a bur which might interfere with - the assembly or function of the item or which might in injurious to personnel handling the item. 3.6.3 Foreign matter.-The pwt or assembly shall not contain chips, dirt, grease, rust, corrosion or other foreign matter. 4. QUALITY ASSURANCE
13、 PROVISIONS 4.1 Responsibi1it.y for insp,ection. -Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of ail inspection requirements as specified herein. fied in the contract or order, the supplier may use his 0% or any other facil- ities sui
14、table for the performance of the inspection requirements specified herein, unless disapprovedby the Government. right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Excep
15、t as otherwise speci- The Government reserves the 4.1.1 Quality assurance terms and definitions. -Reference shall be made to MIL-STD-139 to define quality assurance terms used. 4.1.2 Inspection.-Inspection shall be in accordance with MIL-A-2550 ex- cept as specified herein. 4.2 Inspection provisions
16、. 4.2.1 Lot. - 4.2.1.1 Submissi.on of product.-The product shall be submitted in accord- ance with KiL-STD-lOS. 4.2.1.2 Size of lot.-A lot shall consist of an identifiable group of assembled units containing metal parts assemblies produced by a homogeneous process and loaded With a single lot of acc
17、epted cartridges, 3 Licensed by Information Handling Services MIL-A-50372 23 7799706 0326777 5 W c MIL-A- 50372(MU) I 4.2.2 Examination.-One hundred percent examination shall be performed for all critical defects. Examination for major and minor defects shall be performed on a defect basis in accord
18、ance with the classification of defects, using the sampling plan and associated criteria in Table II, The total number of allowable defects per class for either the major or minor classification shall not exceed the acceptance number of Table II. All nonconforming material shall be rejected. Four po
19、wer magnification may be used in performing visual examination for inspec- tion of such defects as burr and foreign matter. -. WLE II Major Minor Accept Reject Accept Reject - - Lot Size Sample Size 1 - 300 100% Examination - - - - 301 - 800 50 O 1 1 2 801 - i800 90 1 2 2 3 i801 - ioooo 200 2 3 3 4
20、4.2.2.1 Cartr-idge Assepbly, Drawing 5000-.1, covering a detg1 of Drawing 1000-43. - Defect Method of Inspection CRITICAL 1. Mixed cartridges Vi sua1 2. Metal defective Visual 4. Marking missing, incorrect or illegible Visual 3. Closure cap missing, damaged or improperly sealed Visual I. MAJOR 101.
21、Foreign matter Visual MINOR 201. 202. Case scratched, wrinkled, bulged or dented Protective finish, missing or inadequate Visual Visual 4.2.2.2 Assqbly, Drawing 1000-41 with Ehd J!losure Assqbly (Drawing #lOOO-l32) removed. CRITICAL 1. Lock pin loose 2. Ball screw and piston assembly loose Manual/Vi
22、sual Manual 4 Licensed by Information Handling ServicesMIL-A-50372 (MU) 4.2.2.2 (Contd) Defect - CRITICAL. 3. Blowout plug loose MAJOR 101. Thread damaged 102. Foreign matter MINOR Meth.od ,of inspection Manual/Vi suai I Visual Visual None defined . . . . _. 4.2.2.3 Asae$bly Drawin.g 1000-:41 with B
23、r.eech Assembly (Dradng #l022) and Back Up Washer (Dr-iing #lo171 remqved. 2. . CRITICAL 1. Cartridge loose 2. Cartridge retainer loose 3. Foreign matter in gas port MAJOR Manual/Visual Manual/Visual Visual 101. Thread damaged MINOR None defined 4.2.2.4 Assembly Drawing 1000-41. CRITICAL 1. Any part
24、 missing except as 2. Marking missing, incorrect MAJOR 101. Length overall 102. Length of strap extended otherwise classified or illegible Visual Vi suai Visual Gage Gage 5 Licensed by Information Handling Services MIL-A-50372 13 m 7799906 0326799 7 m 4.2.2.4 (Contd) Defect - MAJOR 103. Shear studs
25、loose 104. Cap screw loose 105. Threads damaged MNOR 201. Location labels incorrect 202. Shipping plug missing 203. Protective finish inadequate or defective Method of Inspection . Manual/Visual Manual/Visual Visual 4.2.2.5 Packing in ber Box, Drawing c9218443. CRITICAL None defined MAJOR None defin
26、ed MINOR Vi sual Visual Visual 201. Sealing strips missing, loose or improperly applied Vi sual Manual 202. Contents loose Visual 203. Flaps loose or distorted Visual 204. 205. Marking, missing incorrect or illegible Visual Cut or damaged through all impregnated layers 4.2.2.6 Packing in Wooden Box,
27、 Drawing C9218444. CRITICAL None defined MAJOR None defined MINOR 201. Contents loose 6 Manual Licensed by Information Handling Services- - - MIL-A-50372 L3 9999906 0326800 L MIL-A- 50372( MO) 4.2.2.6 (Contd) I Defect - MINOR Method of Inspection 202. 203. 204. Contents of box exposed 205. 206. Numb
28、er of units incorrect 207. Hardware missing, loose, broken or improperly Strapping missing, loose, broken or improperly. engaged assembled Marking missing, incorrect or illegible Car seal missing, unsealed or improperly positioned 4.2.3 Inspection.-The following tests shall be performed in with 4.3.
29、 Manual/Visual Manual/Visu& Visual Visual Visual visud accordance 4.2.3.1 Breakaway torque.-Each actuator shal be subjected to the break- Failure of any acturator to comply with the require- away torque application. ments of 3.2 shall be cause for rejection of the assembly. 4.2.3.2 Residual magnetis
30、m.-Each actuator shall be subjected to the test for excessive residual magnetism. requirements of 3.3 shall be cause for rejection of the actuator. Failure of any actuator to comply with the 4.2.3.3 Initial lock security.-Each actuator shall be subjected to an initial lock test. 3.4 shall be cause f
31、or rejection of the assembly. Failure of any actuator to comply with the requirements of 4.2.3.4 Functional tests,-The following tests shall be performed by the Government .I 4.2.3.4.1 Ballistics.-Twenty-one units shall be tested as specified in 4.3.4 to determine compliance with the requirements of
32、 3.5.1 to 3.5.4. units shall be temperature conditioned as provided in Table III and 4.3.4.1. Failure of any unit to comply with the requirements shall be cause for rejec- tion of the lot. The TABLE III NOTE: - Temperature -65 to -7OOF 6s0 to 75OF 200 to 205F All variable reported for data gained in
33、formation at -65OF only. and Smple Size 7 7 7 200F will be recorded and 7 a Licensed by Information Handling Services-MIL-A-50372 13 M 7479706 032hBOL 3 W - MIL-A- 50372 (MU) 4.2.4 Inspection equipme.nt -The examination and tests shall be made using equipment approved by the Government. 4.3 Test met
34、hods and procedures, 4.3.1 Breakaway torque.-A torque wrench, set at the torque requirements specified in 3.2 shall be used in conjunction with an adapter to determine the adequacy of the joints. The actuator shall be secured in a holding device and the breakaway torque applied to the end closure an
35、d breech assemblies, 4.3.2 Inikial lqck ,security.-The actuator shall be tested for initial lock securityby securing the actuator body in a holding device and manually puiiing on the strap assembly to assure that the webbing cannot be extended or retracted . 4.3.3 Residual m,gnetism.-llhe actuator s
36、hall be tested for excessive . residual magnetism, in an area free of local magnetic effects, by placing the actuator six inches from and at %he same height-as the compass in a north-south horizontal position (breech end at south) with the compass set in an east-west heading as shown in Figure I. Th
37、e actuator shall be moved slowly past the com- pass in a longitudinal irection for its entire length, rotated 90 degrees in compass. actuator the horizontal position about its longitudinal axis and moved slowly past the This procedure shall be repeated for each 90 degree rotation of the . r: 4.3.4 F
38、unctional tests. 4.3.4.1 Temperature conditioning.-prior to cnnducting the ballistic test specified in 4.3.4.3, the actuator samples shall be subjected to the tempera- .- ture condition specified in 3.5.4. cartridge containing a temperature sensitive element shall be placed in the temperature condit
39、ioning chamber at the same time as the actuator samples. The conditioning tine shall be 8 mFnUnum of one hour longer than the time necessary to bring the element contained in the dummy cartridge to the required tempera- ture. A simulated actuator loaded with a dummy . 4.3 4.1.1 Vpon completion of th
40、e required temperature conditioning , each Samples shall be reconditioned if this time is actuator simple shall be ballistically tested within 5 minutes after removal from the conditioning chamber. exceeded. 4.3.4.2 Method of te.sting.-The actuator tested under the cmditions speci- fied herein shall
41、 be mounted on an approved simulated aircraft seat in the proper position. Install a fixture with the load specifed in Table I of 3.5.4 on the 8 Licensed by Information Handling Services- - MIL-A-5037Z I3 777770b 0326802 5 W - MIL-A- 5O372 (MU) 4.3.4.2 (Cont d) seat. comprising the bottom and back o
42、f the seat. Removable weights may be in- corporated in the fixture so that the weight of the ejected mass can be adjusted from 100 to 400 pounds. record accelerationof the ejected mass on a line which bisects the angle between the seat bottom and the seat back. to determine the amDunt of time requir
43、ed to eject the mass after actuation of the actuator under load conditions. The fixture shall be designed to cover at least 8% of the area Mount an accelermeter on the fixture to A recording system shall be used 4.3.4.3 Ballisti.c test.-Utilize the test fixture specified in 4.3.4.2. Weights installe
44、d in the fixture shall be secured to prevent shifting. M3A1 initiator or simulated method shall be used to actuate the actuator under test. Pressure sensitive devices Shan be used to measure the pressure exerted to actuate the actuator except at -65 firings. devices shall also be used to measure the
45、 amount of bailistic gas pressure in the actuator during operation. actuator end closure assembly for recording the ballistic gas pressure. pressure sensitive device for measuring the amount of pressure used to actuate the actuator shall be inserted into the system by means of a Tee coupling between
46、 the actuator and the actuating device except during -65O firings. The actuator sample shall be tested in accordance with the functional requirements of 3.5 within the time specified. An Pressure sensitive A pressure port shall be installed in the The 5. PREPAXATION FOR DELIVERY L . .- F: 2, : 5.1 P
47、acking and marking - Level A.-Packing and marking shall be in accord- ance with drawings Cg21443 and C92144 4. _. . 6. NOTES -. - 6.1 Ordering data,-Procurement documents should specify the title, number and date of this specification. 6.2 A “mechanical failure“ is defined as any deformation or breakage of -. a part, the occurrence of which is other than a design function. Preparing activity: Custodian : Amy - MU Amy - MU Project No. 1377-A377 9 Licensed by Information Handling Services
