1、b. MIL-1-82871 13 m 9999906 0512002 5 m _ _- - Beneficial comments (recomrnenciations, additions, deletions) and any pertinent however, this does not authorize submission of known defective material, either ,indicated or actual, nor does it commit the Government to acceptance of defective material.
2、. 4.1.2 Quality assurance ternis lind definitions. Reference shall be made to MIL-STD-109 to define the quality assurance terms used. 4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550. 4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be perfo
3、rmed under the following conditions: a. b. Altitude: sea level c. d. Atmospheric pressiire: 14.7 psi 4.3 Quality conform:ince inspection. 4.3.1 Lot. 4.3.1.1 Submission of product. Unless otherwise specified by the contracting activity, formation Temperature: room ambient (68 to 77F) Humidity: 50 per
4、cent relative, maximum Q and identification of lots shall be in accordance with MIL-STD-105. 4.3.1.2 Size of lot. For the purpose of identification and shipment, the shipping lots of metal parts assemblies shall consist of 1200 assemblies, maximum, provided the homogeneity requirements of inspection
5、 lots have been retained. 4.3.2 Exumination. On reprocessed parts, 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 accordance with the classification of defects. Four power (4x) magnification
6、 may be used in performing visual examination for such defects as burr and foreign matter. Inspection for rubber O-rings shall be in accordance with MIL-STD-413. When compliance with the applicable requirement is in doubt as a result of visual examination, the characteristic shall be measured or gag
7、ed to determine acceptability. All nonconforming material shall be rejected. . 4.3.2.1 Examination of reclaimed parts, Examination of reusable parts, which require no reprocessing, shall be limited to inspection of defects that require visual type inspection. One hundred percent examination shall be
8、 performed for all such defects. All nonconforming parts shall be reprocessed or rejected. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-82871 4.3.2.2 Filter, Drawing 10520414, covering a detail of Drawing 10520556, Characteristics Defect M
9、ethod of Inspection Critical None defined Major 101 102 Metal defective 103 104 Burr 105 Foreign matter Nylon patch not properly located or fused Protective finish inadequate or defective Manual/Visual Visual Visual Visual Visual Minor None defined 4.3.2.3 Chamber, Initiator, Drawing 10520407, cover
10、ing a detail of Drawing 10520556. Critical None defined Major 101 102 103 104 105 106 107 108 109 Pitch diameter of large external thread, min Pitch diameter of small external thread, min Pitch diameter of internal thread, max Thread damaged Metal defective Protective finish inadequate or defective
11、Surface finish on angle of gas port improper Burr Foreign matter Cage Gage Gage Visual Visual Visual Visual Visual Visual Minor 201 Surface finish improper, except as otherwise classified Visual 4.3.2.4 Cap, Drawing 10520557, covering a detail of Drawing 10520556. . Critical 1 Metal defective in mou
12、nting tlange surface Visual Major 10 1 102 103 104 Pitch diameter of all threads, max Thread damaged Metal defective Protect ive fin ish in lid eqii a te or tl e fect i ve Gage Vi su al Visual Visual 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
13、105 1M MIL-1-8287 I Burr Foreign inatter Visual Visual Minar None defined 4.3.2.5 Pin, Shear, Drawing 10520475, covering a detail of Drawing 10520556. Critical None defined Major 101 Diameter, max Gage 102 Total length, min Measure 103 Metal defective Visual 104 Protective finish inadequate or defec
14、tive Visual 1 05 Siirface finish improper Visual 106 Burr Visual 107 Foreign inatter , Visual Minor 20 1 Total length, max 202 Profile of end Gage Gage 4.3.2.6 Pin, Firing, Drawing 10520474, covering a detail of Drawing 10520556. Critical None defined Major 101 Metal defective Visual 102 Protective
15、finish inadequate or defective Visual 103 Surface finish bf body and striker tip improper Visual 104 Burr Visual 105 Foreign matter Visual Minor None defined 4.3.2.7 Assembly, Drawing 10520556, less all Drawings except 10520557, 10520474, and MS295113-9. Critical 1 Firing pin protrusion Gage 2 O-rin
16、g missing Visual G Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ri- broken, or improperly engaged Visual Contents of box exposed Visual Visual 204 205 Box damaged 206 Marking missing, incorrect, or illegible . Visual 4.4 Inspection testing. The fo
17、llowing tests shall be performed in accordance with 4.5. 4.4.1 IIydrostatic pressure. Each chamber and cap shall be subjected to the hydrostatic pressure test. Failure of any cap or chamber subassembly to comply with 3.2 shall be cause for rejection of the siibasseinbly . O 4.4.2 Protective finish.
18、lic niinibcr of units for protective finish tests shall be in accordance with the applicable specification. Failure of any unit in the inspection sample to comply with the requirements of the applicable specification sliall be cause for rejection of the lot. 4.4.3 Residual magnetism. Each assembly s
19、hall be subjected to the test for excessive residual magnetism as specified in 4.5.3.: Failure of any unit in the inspection sample to comply with 3.4 shall be cause for rejection of the assembly. 4.4.4 Shear pin strength. Fifty pins from each lot of shear pins shall be tested for shear strength. Fa
20、ilure of any shear pin to comply with 3.5 shall be cause for rejection of the lot. 4.5 Test methods and procedures. I 4.5.1 Hydrostatic pressure. Prior to application of protective finish the cap and chamber shall be mountcd in the device, using a fixture for properly sealing all openings, and subje
21、cted to the internai hydrostatic pressure to determine compliance with 3.2. 4.5.2 Protective finish. Test procedures for protective finish shall be in accordance with the applicable specification referenced on the applicable drawing. a Provided by IHSNot for ResaleNo reproduction or networking permi
22、tted without license from IHS-,-,-6- -i/ MIL-I-Z71 13 = 999990b 0512010 4 = MIL-1-8287 1 4.5.3 Residual magnetism. The assembly shall be tested for excessive residual magnetism using an approved compass in an area free of local magnetic effects by placing the assembly 5 inches from the end and at th
23、e same height as the compass, in a north-south horizontal position (cap end at south) with the compass set in an east-west heading. The assembly shall be moved at a speed no greater than 10 feet per minute past the compass for its entire length, rotated 90 degrees in the horizontal position about it
24、s longitudinal axis and moved slowly back past the compass. This procediire shall be repeated for each 90 degree rotation of the assembly for four full passes. . 4.5.4 Shear pin strength. -After application of protective finish, the pin shall be subjected to the shear pin strength test to determine
25、compliance with 3.5. The test shall be performed in a fixture in conjunction with a tensile testing machine. 4.6 Inspection of packaging. The sampling and inspection of the packaging, packing, and container marking shall be in accordance with the requirements of section 5. 5. PACKAGING 5.1 Packing a
26、nd marking. Packing and marking shall be Level A or B, as specified by tlic contracting activity (see 6.2). Level A shall be in accordance with Drawings 8830992 and 8830993. Level B shall be in accordance with Drawings 8830992 and 9216932. 5.2 Air Force packaging. Air Force packaging shall be in acc
27、ordance with TPO 00-724-9886. 6. NOTES mis section contains information of a general or explanatory nature that may be helpful but is not mandatory.) 6.1 Intended use. The initiator assembly is used in conjunction with other propellant actuated devices in Aircrew Emergency Escape Systems. 6.2 Acquis
28、ition requirements. Acquisition documents must specify the following: a. Title, number, and date of this specification b. Issue of DODISS to be cited in the solicitation and, if reqriired, the specific issue of individual documents referenced (see 2. I. 1 and 2.1.2) c. The responsible inspection act
29、ivity (see 4. 1) d. Any special instruction requirements (see 4.3) e. Level of packing and marking (see 5. i) 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - - - - MIL-1-82871 13 9999906 0512011 b = MIL-1-8287 I . 6.3 Definitions. 6.3.1 Mcvhrini
30、cul failure. Mechanical failure is any deformation or breakage of a part, the 6.3.2 Exterior components. Reiiianufxtured exterkir components are: cap, firing pin housing, and . occurrence of which is other than a design function. I chamber. 6.4 Sulijwt term (keyword) listing. Ejection systems, aircr
31、ew Emergency escape systems, aircrew Escape systems, aircrew Life-saving systems, aircrew 6.5 Changes from previous issue. Marginal notations are not used to identify changes with respect to the previous issue because of the extensiveness of the changes. Custodian: Navy - OS Air Force - 99 Review activity: Air Force - 70 io Preparing activity (Project 1377-0D84) Navy - OS a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
