1、 MIL-DTL-45144E 29 December 2009 SUPERSEDING MIL-F-45144D (AR) 08 June 1984 DETAIL SPECIFICATION FUSE, BLASTING, TIME M700, AND DUMMY FUSE, BLASTING, TIME - INERT LOADING, ASSEMBLING AND PACKING This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. S
2、COPE 1.1 Scope. This specification covers the design, materials, quality assurance provisions and preparation for delivery of two types of fuses: FUSE, BLASTING, TIME: M700 and DUMMY FUSE, BLASTING, TIME, INERT. 1.2 Classification. The following are descriptions of the two fuse types: 1.2.1 Type I.
3、The FUSE, BLASTING, TIME: M700 is a safety type, suitable for firing M7 Non-Electric Blasting Cap. The fuse consists of a continuous delay train of fuse powder, tightly wrapped with three cotton yarns, and enclosed by ten jute yarns. The fuse is then counter-wound with ten cotton yarns, coated with
4、asphalt material, then covered by an extruded plastic sheath. 1.2.2 Type II. The Dummy Fuse, Blasting, Time, Inert is of the same configuration as the Type I except it contains an inert material in place of the fuse powder. 2. APPLICABLE DOCUMENTS AMSC N/A FSC 1375 DISTRIBUTION STATEMENT A. Approved
5、 for public release; distribution is unlimited. Comments, suggestions, or questions on this document, should be addressed to the Commander, U.S. Army ARDEC, ATTN: RDAR-QES-E, Picatinny Arsenal, New Jersey 07806-5000 or emailed to ardecstdznconus.army.mil. Because contact information can change, you
6、may want to verify the currency of this address information using the ASSIST online database at http:/assist.daps.dla.mil. Reactivated for new design and may be used for either new or existing design acquisition. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without
7、 license from IHS-,-,-MIL-DTL-45144E 22.1 General. The documents listed in this section are specified in sections 3, 4 or 5 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every eff
8、ort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4 and 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handb
9、ooks. The following specifications, standards and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FEDERAL STANDARDS FED-STD-595/17043 - Colors Used in Government Procurem
10、ent/Gold, Gloss FED-STD-595/33538 - Colors Used in Government Procurement/Yellow, Flat FED-STD-595/34088 - Colors Used in Government Procurement/Green, Flat FED-STD-595/37038 - Colors Used in Government Procurement/Black, Flat FEDERAL SPECIFICATIONS L-P-390 - Plastic, Molding and Extrusion Material,
11、 Polyethylene and Copolymers (Low, Medium, and High Density) COMMERCIAL ITEM DESCRIPTION A-A-208 - Ink, Marking, Stencil. Opaque, (Porous and Non-porous Surfaces) A-A-59138 - Charcoal (For Use In Ammunition) A-A-59383 - Marking Media, Opaque (Porous and Non-Porous Surfaces) DEPARTMENT OF DEFENSE SPE
12、CIFICATIONS MIL-P-156 - Potassium Nitrate MIL-S-14929 - Sulfur: Commercial Grade (For Use In Ammunition) MIL-P-15011 - Pallets, Material Handling, Wood Post Construction, 4-Way Entry MIL-C-43438 - Crimper, Blasting Cap, M-2, Pliers Type. W/Fuse Cutter MIL-C-45469 - Cap, Blasting, Non-Electric: M7, L
13、oading Assembling and Packing DEPARTMENT OF DEFENSE STANDARDS MIL-STD-1168 - Ammunition Lot Numbering and Ammunition Data Cards MIL-STD-1916 - DoD Preferred Methods for Acceptance of Product MIL-STD-2073-1 - Standard Practice for Military Packaging (Copies of these documents are available online at
14、http:/assist.daps.dla.mil/quicksearch/ or from Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45144E 3the Standardization Documents Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government documents, dra
15、wings and publications. The following other Government documents, drawings and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. ARDEC DRAWINGS 9242364 - Can, Metal, Pac
16、king, Ammunition For Fuse, Blasting, Time, M700 9242365 - Box, Packing, Ammunition, For Fuse, Blasting, Time, M700 9242366 - Box, Fiberboard, Ammunition, For Fuse, Blasting, Time, M700 9242367 - Box, Packing, Ammunition, For Fuse, Blasting, Time, M700 (These drawings may be requested online Pica.Dra
17、wing.Requestconus.army.mil or from U.S. ARMY ARDEC, RDAR-EIS-PE, Picatinny Arsenal, NJ 07806-5000.) ARMY MATERIEL COMMAND DRAWINGS 19-48-4116/130A The Basic Unitization Procedures Drawing 19-48-4116/130B The Basic Unitization Procedures Drawing (These drawings may be requested online at http:/www.da
18、c.army.mil/det/order/draworder.html or from Defense Ammunition Center, SJMAC-DET, 1 C Tree Road, Bldg. 35, McAlester, OK 74501.) U.S. BUREAU OF ALCOHOL, TOBACCO, AND FIREARMS Title 27, Code of Federal Regulations (Copies of this document are available online at www.access.gpo.gov or from the Superin
19、tendent of Documents, U.S. Government Printing Office, North Capitol approximately 10% sulfur in accordance with MIL-S-14929; and 16% charcoal in accordance with A-A-59138. The fuse powder train shall be continuous throughout the length of the train and shall be of such density and formulation as to
20、 comply with the requirements specified herein for the finished fuse. 3.4. Inert fuse powder train (Type II). A non-energetic, inert material shall be used. The material color shall be visually distinct from the Type I fuse powder. The inert fuse powder train shall be continuous throughout the lengt
21、h of the train and shall be of such density and formulation as to comply with the requirements specified herein for the finished fuse. 3.5. Cotton yarn. 3.5.1. Cotton center longitudinal yarns. The three yarns shall be of 15/3 or 10/2 or 24/2/2 size/ply absorbent cotton yarns and shall be in the cen
22、ter of the fuse powder of 3.3 and 3.4. 3.5.2. Cotton counter yarns. Cotton yarn countering shall be performed on top of jute yarn spinning of 3.6.1. The countering shall consist of a tight spiral wrap of 10 cotton yarns of 10/2 size/ply applied with a Z twist, also known as left hand twist. Provided
23、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45144E 53.5.3. Cotton yarn construction. Cotton yarn used in the manufacture of the fuse shall be natural, unfinished yarn spun from thoroughly clean, staple carded cotton fiber. 3.5.4. Cotton yarn impe
24、rfections. The cotton shall be evenly drawn, spun, and twisted into a smooth and even yarn, free from any lumps, lint, or other imperfections which would adversely affect the finished fuse. 3.5.5. Cotton yarn number. Yarn number shall be as specified herein for the particular use and shall be taken
25、as the number of 840 yard hanks per pound. 3.5.6. Cotton yarn skein breaking strength. The breaking strength of the yarn shall not be less than the standard obtained as follows, when tested in skeins equivalent to 120 yards of single end: Standard Breaking Strength = (1800 divided by the yarn number
26、) plus (the # of plies multiplied by 3). 3.5.7. Cotton yarn single strand breaking strength. The breaking strength of single strands in ounces shall be not less than 12.5 percent of the standard breaking strength in pounds. 3.6. Jute yarn. The jute yarn spinning shall be applied on top of the fuse p
27、owder train of 3.3 and 3.4. 3.6.1. Jute yarn spinning. The spinning shall consist of a tight spiral wrap of 10 jute yarns applied with a right hand or S twist. The wrap shall completely enclose the fuse powder train. 3.6.2. Jute yarn construction. The yarn shall be batched with a single application
28、containing an emulsion of water, mineral oil, and a suitable emulsifying agent, which will not adversely affect the finished yarn. The yarn shall be otherwise untreated and shall have a natural color. 3.6.3. Jute yarn imperfections. All jute yarns shall be essentially level and free from bark, rove,
29、 large and loose knots, slubs, and excess of root fibers. The allowable imperfections must pass through a cleaner to remove all foreign material larger than 0.051 inch diameter. 3.6.4. Jute yarn number. The yarn shall be number 14.5 plus or minus 20%. The average yarn number of the spinning jute yar
30、ns shall range from 13.77 to 15.23. Yarn number shall be taken as 496 yard hanks per pound. 3.6.5. Jute yarn breaking strength. The single yarn breaking strength shall be not less than 9.7 pounds. 3.6.6. Jute yarn twist. The yarn shall be spun with a Z twist, also known as left hand twist. 3.6.7. Ju
31、te turns per inch. The average number of turns per inch (tpi) shall be 3.36 tpi plus or minus 10 percent. 3.6.8. Jute yarn oil content. Oil (natural or other) content of the yarn shall be not greater than one percent by weight. Provided by IHSNot for ResaleNo reproduction or networking permitted wit
32、hout license from IHS-,-,-MIL-DTL-45144E 63.6.9. Jute yarn volatile matter. Volatile matter shall be not greater than 13.5 percent by weight. 3.7. Asphalt. The fuse shall be treated with asphalt following the cotton yarn spinning of 3.5.2. 3.7.1. Asphalt coating weight. The fuse shall be wiped to gi
33、ve a coating from 1.1 to 1.6 pounds per 1000 feet of fuse. 3.7.2. Asphalt softening point. The asphalt softening point shall be not less than 148 and not greater than 162 Fahrenheit (F). 3.7.3. Asphalt penetration. The asphalt penetration shall be 2.2 millimeters plus or minus 0.2 millimeters at 77F
34、 and not greater than 130 millimeters at 115F. 3.7.4. Asphalt volatile matter. The asphalts volatile matter shall be not greater than 0.1% by weight. 3.8. Plastic. A plastic coating shall be applied following the application of asphalt. 3.8.1. Plastic extrusion. The plastic coating shall be applied
35、with cross head extrusion equipment. The plastic used for coating the fuse shall comply with L-P-390 except for pigment or dye required to comply with 3.8.5 for Type I and 3.8.6 for Type II. The addition of pigment or dye shall not adversely affect the physical and chemical properties of the plastic
36、. 3.8.2. Plastic coating wall thickness. The wall thickness of the plastic coating shall be not less than 0.012 inch. 3.8.3. Plastic coating imperfections. The plastic coating shall be smooth and free of foreign matter, pin holes, bubbles, breaks, discontinuity, or other defects which would adversel
37、y affect the function of the finished fuse. 3.8.4. Plastic elongation. The elongation shall be not less than 70%. 3.8.5. Color (Type I). The plastic shall be green conforming to FED-STD-595/34088. 3.8.6. Color (Type II). The plastic shall be gold conforming to FED-STD-595/17043. 3.9. Fuse diameter a
38、fter cotton yarn counter spinning. The fuse diameter shall be not greater than 0.164 inch after the delay trains cotton yarn is counter spun. 3.10. Fuse diameter of the finished fuse. The outside diameter of the finished fuse shall be 0.200 plus or minus 0.005 inch. 3.11. Fuse length. The finished f
39、use shall be cut into 50 feet plus 0.50 feet minus 0 feet. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45144E 73.12. Maximum number of splices. The fuse shall contain no splices. 3.13. Marking (Type I). All required markings shall be neat
40、 and sharply defined. 3.13.1. Marking single band increments. The fuse shall be clearly marked with single bands every 18 inches plus 0.50 minus 0.25 inches. The tolerance is noncumulative. 3.13.2. Marking double band increments. The fuse shall be clearly marked with double bands every 90 inches plu
41、s 1.50 minus 0.50 inches. The tolerance is noncumulative. 3.13.3. Marking application. The marking shall be made using a heat stamp and foil. 3.13.4. Marking color. The marking shall be yellow conforming to FED-STD-595/33538. 3.13.5. Marking width. The width of the marking shall be not less than 0.2
42、5 inch plus 0.01 minus 0.01 inch. 3.13.6. Marking coverage. Marking shall be on not less than 60o of the fuses circumference. 3.14. Marking (Type II). The fuse shall be marked as specified in 3.13 except the marking color shall be black conforming to FED-STD-595/37038. In addition, the fuse shall be
43、 marked “INERT” using 1/8 inch high black lettering on each end and every 5 feet in between the ends. 3.15. Burn time. The burning time of 36 inches plus 0.5 minus 0.5 inches lengths of the fuse at sea level and 70F shall be 120 seconds plus or minus 12 seconds. 3.16. Flame intensity. The flame of t
44、he fuse shall ignite an M7 blasting cap in accordance with MIL-C-45469. 3.17. Operating temperatures. The M700 shall show no evidence of material degradation, damage or failure, and its performance shall not be degraded when functioned throughout the temperature range of -50F to 125F. 3.18. Waterpro
45、ofness. The fuse shall withstand submersion in water for 24 hours and afterwards shall function satisfactorily by igniting the blasting cap in 120 seconds plus 12 minus 50 seconds. 3.19. Workmanship. All parts and assemblies shall be free of holes, tears, voids, blisters, pores, dirt, grease, fungus
46、, and other foreign matter, and defects which would affect their serviceability. The cleaning method used shall not be injurious to any part no shall the parts be contaminated by the cleaning agent. All required markings shall be neat and sharply defined. 4. VERIFICATION Provided by IHSNot for Resal
47、eNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45144E 8TABLE I. Requirement/verification cross-reference matrix. Method of Verification Classes of Verification 1- Analysis 2- Demonstration (end item test) 3- Examination 4- Test A First Article B Conformance Section 3 D
48、escription Verification Method Verification Class Section 4 1 2 3 4 A B 3.1 First article inspection X X X 4.2 3.2 Conformance inspection X X X 4.3 3.3 Fuse powder train(Type I) X X X 4.3.3.1 3.4 Inert fuse powder train (Type II) X X X 4.3.3.3 3.5 Cotton yarn X X X X 4.3.3.1/4.3.3.3/ 3.5.1 Cotton ce
49、nter longitudinal yarns X X X 4.3.3.5 3.5.2 Cotton counter yarns X X X 4.3.3.1/4.3.3.3 3.5.3 Cotton yarn construction X X X 4.3.3.1/4.3.3.3 3.5.4 Cotton yarn imperfections X X X 4.3.3.5 3.5.5 Cotton yarn number X X X 4.3.3.5 3.5.6 Cotton yarn skein breaking strength X X X 4.3.3.5 3.5.7 Cotton yarn single strand breaking strength X X X
