1、MIL-S-13257H (AR) AMENDMENT 7 6 February 2001 SUPERSEDING AMENDMENT 6 29 March 1991 MILITARY SPECIFICATION SIGNAL, ILLUMINATING, GROUND PARACHUTE, RED STAR, M126A1, WHITE STAR, M127A1 AND GREEN STAR, M195, PARTS AND LOADING, ASSEMBLING AND PACKING This amendment forms a part of MIL-S-13257H (AR), da
2、ted 12 February 1980, and is approved for use by the U.S. Army Armament Research, Development and Engineering Center and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 * 2.1: Federal Standards, delete “FED-STD-15 1” in its entirety. PAGE 2 2.1, Under Standa
3、rds, add: “COMMERCIAL ASTM ES - Tension Testing of Metallic Materials” * 2.1, Drawings, delete “7548414” and “754841 5” in their entirety and substitute the following: “12900001 - Packing and Marking for Container, PA142 for Signal, Ground 12900009 - Packing and Marking for Container, M548, for Sign
4、als, Ground” AMSC N/A lof 15 FSC 1370 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-13257H (AR) AMENDMENT 7 * 3.3.1, Delete in its entirety and substitute the f
5、ollowing: “3.3.1 Premature burst. The assembly shall not burst within one hundred (100) feet from the launcher.” * Add new paragraphs 3.3.1.1 and 3.3.1.2 as follows: “3.3.1.1 Premature eiection. The illuminant assembly shall not eject at an altitude of less than one hundred (100) feet from the groun
6、d within a horizontal distance of two hundred and fifty (250) feet from the launcher, or at an altitude of less than fifty (50) feet from the ground at a horizontal distance in excess of two hundred and fifty (250) feet from the launcher. 3.3.1.2 Launch delay. The signal must completely exit the roc
7、ket barrel within two (2) seconds of the striking of the primer.” PAGE 3 * 3.3.3, Delete “the requirements of 3.3.1” and substitute “the requirements of 3.3.1,3.3.1.1, and 3.3.1.2.” * 3.3.4a and b, Delete in its entirety and substitute the following: “a. The requirements of 3.3.1,3.3.1.1, 3.3.1.2, a
8、nd 3.3.2. b. In the M127A1 assembly (see note after 4.4.3.2.3.2)” * 3.3.5, Delete in its entirety and substitute the following: “3.3.5 Cold temperature. (-57 to -51C or -70 to -60F). The signal assemblies shall function and comply with the following requirements when tested as specified in 4.5.2.3.
9、a. Therequirementsof3.3.1,3.3.1.1,and3.3.1.2. b. The illuminant assembly burning time shall comply with 3.3.4b (See note after 4.4.3.2.3.2). c. The average angle from the vertical of the ejected illuminant assemblies shall be not more than 25 degrees. The altitude shall be recorded for informational
10、 purposes. d. The parachute shall not separate Erom the illuminant assembly. (Parachute opening delay shall be recorded for informational purposes as well as whether chute remains partially open).” 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
11、L-S-13257H (AR) AMENDMENT 7 * 3.4, Line 1 , delete ?metal container? and substitute ?plastic container? * 3.5, Delete in its entirety. PAGE 4 * Add new paragraph 3.9 as follows: ?3.9 Airtightness. The metal container shall withstand, without leakage, an air pressure differential of three (3) pounds
12、per square inch (psi) when tested as specified in 4.5.13.? PAGE 5 Table I, Under Signals, Assemblies, delete ?Functioning, cold, hand fired . . . 16 . . . - . . . 3.3.514.5.2.3.2.? * Table I: Delete ?(Dwg. 7548414)? and substitute ?(Dwg. 12900001)? Under Containers (Dwg. 12900001), delete ?Leakage t
13、est 96? and substitute ?Leakage test 80? Delete ?Tear Strip Test (from the Leakage test)? in its entirety. Add: ?Container, Metal, M548 (Dwg. 12900009) Examination for defects . . . 4 metal containers 31 . . . 3.2 . . . 4.4.2.24? Add Note 3 as follows: ?3. If any of the four (4) M548 containers are
14、found defective, it should be replaced with an acceptable container prior to functioning test.? PAGE 7 4.4.2.1 , Tube casing, delete critical defects in their entirety and substitute the following: ?Critical 1 Hydrostatic pressure test 100% 3.2 4.5.6 2 Pressure of cracks 100% 3.7 Visual (Note 1) 3 P
15、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-13257H (AR) AMENDMENT 7 Maior i O 1 Perpendicularity of ends 0.40% 3.2 Gage 102 Total length, m accept O reject Provided by IHSNot for ResaleNo reproduction or networking permitted without license
16、from IHS-,-,-MIL-S-13257H (AR) AMENDMENT 7 * 4.4.2.19: Add critical defect 3 as follows: “3. Primer above flush . . . 100% . . . 3.2 . . . Gage” Add Major defect 104 as follows: “104 Depth of primer incorrect . . . 0.40% . . . 3.2 . . . Gage” PAGE 29 * 4.4.2.23: Delete Dwg. “7548414” and substitute
17、“12900009” Under next higher assembly, add “12900009” Delete Critical 1 in its entirety. Critical 2, add: “Cover” before “Embossing .” Delete Major 103 and 106 in their entirety. Add Major 107 as follows: “107 Label missing or improperly applied . . . - . . . 0.40% . . . 3.2 . . . Visual” Delete Min
18、or 203 in its entirety. PAGE 30 * 4.4.2.24, Delete in its entirety and substitute new paragraph as included page 30. Add new paragraph 4.4.2.25 as included page 30a. Add new paragraph 4.4.2.26 as included page 30b. * 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
19、nse from IHS-,-,-4.4.2.24 L CLASSIFICATION Critical: Maior 102. 103. - Minor 201. 202. 203. 204. - QUALITY CONFORMANCE INSPECTION CLASSIFICATION OF CHARACTERISTICS MIL-S-13257H (AR) AMENDMENT 7 TITLE Packing and Marking for Container, Metal M548 for Signals, Ground EXAMIN ATIONICHARACTERSTICS None d
20、efined PA142 Container quantity incorrect, or improperly inserted Air tightness test (after sealing) Metal container damaged (dents, splits, etc.) Contact loose Marking misleading or unidentifiable Metallic seal missing, unsealed, or improperly engaged Poor Workmanship NO. OF SAMPLE UNITS SHEET 1 OF
21、 1 AQL or I 00% 0.40% 0.40% 0.65% 0.65% 0.65% 1.00% 3.2 3.9 3.2 3.2 3.2 3.2 3.8 DRAWING NUMBER 12900009 NEXT HIGHER ASSEMBLY PARAGRAPH REFERENCEfINSPECTION METHOD Visual 4.5.414.5.13 Visual Visual Visual Visual Visual 1/ One container out of each 20 containers packed ousealed shall be tested, if the
22、 container fails the test, it should be removed from the lot and all containers back to the last successful test should be leak tested. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- QUALITY CONFORMANCE INSPECTION CLASSIFICATION OF CHARACTERISTICS
23、MIL-S-13257H (AR) AMENDMENT 7 Signal Body None defined Small inside diameter Large outside diameter, max. Large inside diameter, min. Overall length Poor Workmanship NO. OF SAMPLE UNITS SHEET 1 OF 1 AQL or I cm% 0.40% 0.65% 0.65% 0.65% 1.00% - WEM UCiuRI - 3.2 3.2 3.2 3.2 3.8 DRAWING NUMBER 8797963
24、NEXT HIGHER ASSEMBLY PARAGRAPH REFERENCEmuSPECTION METHOD Gage Gage Gage Gage Visual 8 (30a) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARAGRAPH 1.4.2.26 CLASSIFICATION Critical: Maior 101. Minor NOTES QUALITY CONFORMANCE INSPECTION CLASSIFICATI
25、ON OF CHARACTERISTICS MIL-S-13257H (AR) AMENDMENT 7 Protector Assembly EXAMINATIONICHARACTERISTICS None defined Outside diameter, max. None defined NO. OF SAMPLE UNITS SHEET 1 OF 1 AQL or 100% 100% 3.2 DRAWING NUMBER 8797941 NEXT HIGHER ASSEMBLY PARAGRAPH REFERENCFYTNSPECTION METHOD Gage - 9 (30b) P
26、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-13257H (AR) AMENDMENT 7 PAGE 31 4.4.3.1, Last sentence of note, delete “4.5.2” and substitute “4.5.1” PAGE 32 4.4.3.2, Table III, add the following inspection: “Cork sealing disc in end of barrel l
27、oose (See label dwgs. 879793 1-2,3 and 10) . . . Major” * Table III: Add the following characteristics: “Premature ejection (See 3.3.1.1) Launch delay (See 3.3.1.2) Parachute separation at cold temperature Special (see 6.8) Major Major” Delete “Assembly bursts at a distance of more than one hundred
28、(100) feet from the launcher (See 3.3.1) Major” and substitute “Assembly bursts at a distance of more than one hundred (100) feet from the launcher but less than the distance specified in 3.3.1.1 Special” 4.4.3.2.1.1, Delete “one hundred (100) assemblies” and substitute fifty (50) assemblies” 4.4.3.
29、2.1.2, Delete “twenty-five (25) assemblies” and substitute “twenty (20) assemblies” c * 4.4.3.2.1.1 and 4.4.3.2.1.2, Delete “a critical defect” and substitute “a critical or special defect” 4.4.3.2.2.1 : Delete “one hundred and twenty five (125) assemblies” and substitute “one hundred (1 00) assembl
30、ies” Delete “or if eight (8) or more” and substitute “or if six (6) or more” * 4.4.3.2.2.1 Delete “a critical defect occurs and substitute “a critical or special defect occurs” 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-13257H (AR) AMEN
31、DMENT 7 PAGE 33 * 4.4.3.2.2.2, Delete “a critical defect occurs” and substitute “a critical or special defect occurs” 4.4.3.2.3.1, Delete in its entirety and substitute the following: 4.4.3.2.3.1 Beginning with the first lot produced and continuing until three (3) consecutive lots have been found to
32、 be acceptable, fifty (50) assemblies shall be selected from each lot for test. The lot shall be rejected if, during the test a critical defect occurs, the average angle from the vertical exceeds the requirements, or if four (4) or more assemblies exhibit any of the remaining major defects listed in
33、 Table III. (See note after the following paragraph).” 4.4.3.2.3.2, Delete in its entirety and substitute the following: “4.4.3.2.3.2 After three (3) consecutive lots have complied with the criteria of 4.4.3.2.3.1, thirty-two (32) assemblies shall be selected from each lot for test. The lot shall be
34、 rejected, if during the test, a critical defect occurs, the average angle from the vertical exceeds the requirement or if three (3) or more assemblies exhibit any of the remaining major defects listed in Table III. (See note). Note: A star which ignites and bums normally but subsequently fails to m
35、eet minimum burning time requirements due to ground impact, will not be classified defective. Firing records will be annotated accordingly.” * 4.4.3.2.3.1 and 4.4.3.2.3.2, Delete “a critical defect occurs” and substitute “a critical or special defect occurs 4.4.3.2.4, Delete in its entirety. PAGE 34
36、 4.4.3.3, Second sentence, delete “as classified in Table III of 4.4.3.2” and substitute “(See 3.3.1)” PAGE 36 4.5.2.1: * Line 4, delete “ metal” and substitute “plastic” Note, delete “60 seconds” and substitute “three minutes” 11 Provided by IHSNot for ResaleNo reproduction or networking permitted
37、without license from IHS-,-,-* MIL-S-13257H (AR) AMENDMENT 7 4.5.2.2, Note, delete “60 seconds” and substitute “three minutes” PAGE 37 4.5.2.3.1: Line 4, delete “metal” and substitute “plastic” Note, delete “60 seconds” and substitute “three minutes” 4.5.2.3.2, Delete in its entirety. * 4.5.3: Delet
38、e “Leakage” and substitute Leakage (plastic container)” Line 1, delete “The packed sealed container” and substitute “The packed plastic container (dwg. 12900001)” * 4.5.4, Delete in its entirety. PAGE 38 4.5.6, Delete in its entirety and substitute the following: “4.5.6 Hydrostatic test of tube. cas
39、ing. In lieu of testing each individual casing tube, the tubing stock, which is used to manufacture the casing tube, shall be 100% tested in a hydrostatic test device (see 4.4.4). The minimum pressure shall be applied for not less than 5 seconds. The tubing shall be observed for evidence of failure
40、to comply with the requirements. Any full length of tubing that bursts, cracks, or shows evidence of distortion shall be classified as defective and removed fiom production.” 4.5.8, Delete in its entirety and substitute the following: “4.5.8 Mechanical properties of tail vane. The tail vanehest samp
41、les shall be tested for mechanical properties in accordance with ASTM E8. If any tail vanehest sample fails to comply with the criteria specified on the applicable drawing, the heat treated batch represented by the sample shall be rejected.” 12 Provided by IHSNot for ResaleNo reproduction or network
42、ing permitted without license from IHS-,-,-MIL-S- 1 3 25 7H (AR) AMENDMENT 7 4.5.10, Delete the last sentence and substitute the following: “If one or more assemblies fail to comply with the color value requirement or if two or more assemblies fail to meet the candlepower requirement, the lot shall
43、be rejected.” PAGE 39 * Add the following paragraphs: “4.5.13 Airtightness. The metal container shall be conditioned to ambient temperature and pressure prior to testing. The container shall be tested in accordance with 4.5.13.1 or with permission of the procurement agency with 4.5.13.2. A wetting a
44、gent may be used to minimize air bubbles clinging to the exterior surface. A stream or recurring succession of bubbles from any surface, seam or junction shall be evidence for a defective container. Any container that fails to comply with the requirement shall be classified defective and removed fro
45、m the lot. 4.5.13.1 Vacuum method. The container shall be tested for leakage by immersing the closed container in the inverted position under water in a vacuum vessel and lower the pressure in the vessel to three pounds per square inch minimum below ambient pressure. Observation for leakage of air f
46、rom the container interior shall be made for a minimum of three seconds after reduction of pressure. 4.5.13.2 Hot water method. The container shall be tested for leakage by immersing the closed container in the inverted position to a depth of one inch below the surface of the water. The temperature
47、of the water and the length of time of immersion shall be that which will assure an increase in pressure to a minimum of 3 psi above ambient pressure. Observation for leakage of air from the container interior shall be made during the period of pressure buildup and for 30 seconds after the 3 psi pre
48、ssure differential has been reached.” * 5.1.1, Delete “7548414” and substitute “12900001” * 5.2.1, Delete “7548415” and substitute “12900009” * 5.3, Delete “7548414 and 7548415” and substitute “12900001 and 12900009” 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without lic
49、ense from IHS-,-,-MIL-S-13257H (AR) AMENDMENT 7 PAGE 40 6.4, Delete in its entirety. 6.7, Delete the table and substitute the following: “PRODUCTION LOTS First three Firing Method & First Consecutive Normal Requirement Conditioning Temp Article Acceptable Production Paragraph Fixture: 68“ to 74C 32 50 20 See 3.3.3 (155“ to 165F
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