1、MIL-P-4b9948 (4) 9999906 L953205 L74 MIL-P-46994B (AR) AMENDMENT 4 11 November 1993 SUPERSEDING AMENDMENT 3 23 September 1988 MILITARY SPECIFICATION PELLETS/GRANULES BORON/POTASSIUM NITRATE This amendment forms a part of Military Specification MIL-P-46994B (AR), dated 4 January 1982, and is approved
2、 for use by the US Army Armament, Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 * 1.1 Delete in its entirety and substitute the following: “1.1 Scope This specification covers eight types of ignitor O pellets/granules fo
3、r use in rocket motors, fuzes and payload ignition/expelling charges. (see 6.8)“ * 1.2 Add the following Type IX: “Type IX - Oblate Spheroid Granules 5% rnax retained on USS Sieve No 20 5% max thru USS Sieve No 50“ PAGE 4 * 3.1.2 Delete Table I., Formulation and replace with the follow- ing : “TABLE
4、 I. Formulation All types except Type MATERIALS IV and Type IX Type - IV Tvpe IX Potassium Nitrate, % 70.7 Lf 2.0 72.2 L 1.5 85.0 L 2.0 Boron, Amphorous, % 23.7 distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-4b994B (
5、4) 9999906 L953206 O00 = MIL-P-46994B (AR) AMENDMENT 4 PAGE 4 3.1.3: Delete Table II and replace with the following: TABLE II. Binder Composition Inqredients Percent Polyester Resin, (see 6.4.2) Catalyst, (see 6.4.3) Accelerator, Advisory (see 6.4.1) 98.0 1.5 0.5 +c 3.1.4 Delete “All Types, except T
6、ype IV“ and substitute “All Types, except Type IV and Type IX.“ Add new Type IX as follows: “Type IX Percent Boron 11.7 to 15.6%“ PAGE 6 * 3.3 Add Type IX in Table III as follows: “IX Oblate Spheroid Granules (see Table V)“ (see note in 3.1.2 regarding Type VIII) PAGE 7 Add Type IX in Table IV as fo
7、llows: Properties - IX Density, min. gm/cm3 Moisture Content (percent) max. Burning Rate (inches/second) Heat of Reaction (calories/gram) min. Axial Radial milliseconds Crush Strength Time to Max. pressure N/A .75 N/A 1300 N/A N/A N/A 11 (see note in 3.1.2 regarding Type VIII) 2 Provided by IHSNot f
8、or ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-46994B (AR) AMENDMENT 4 PAGE 8 .L 3.5 Delete paragraph 3.5 with.Table V and substitute the following: “3.5 Granulation. The granulation for Types VI1 and IX shall be as specified in Table V when determined as specifi
9、ed in 4.6.9. Type VI1 Class 1 Class 2 Class 3 TABLE V Size Requirements 5% Max. retained on USS Sieve No. 50 60 100 Special granulations (see 6.1 and 6.7) 6 12 25 40 5% Max. thru USS Sieve No. 60 100 140 12 25 50 140 Type IX 20 50 Other granulations of Type VI1 may be specified for special ap- plica
10、tions. PAGE 18 -L 5.1.1 Add the following: “The granular form shall be packaged, packed, marked and labeled for shipment in accordance with the requirements of CFR 173.62 and MIL-STD-129, as applicable. Proper Shipping Name: Articles, Pyrotechnic - UN No. 0430.“ The margins of this amendment are mar
11、ked with asterisks to indi- cate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government assumes no liability what- soever for any inaccuracies in these notations. Bidders and contractors are cautioned
12、 to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodian: Army-AR Preparing activity Army-AR (Project 1375-A512 Review activities: Army-EA 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
