1、NIL-S-24hbO 42 W 9999906 0233006 9 W I a a NIL-S-24660 (SH) “1 October 1985 MILITARY SPECIFICATION SPRINKLER HEAD, 180 DEGREES FULL CONE This specification is approved for use within the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of th
2、e Department of Defense. 1. SCOPE 1.1 Scope. This specification covers 180 degree full cone sprinkler heads. Sprinkler heads shall be for pendent or upright installation in overhead sprin- kler systems. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The followi
3、ng specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in
4、the solicitation. SPECIFICATIONS FEDERAL QQ-C-390 - Copper Alloy Castings (Including Cast Bar). PPP-B-601 - Boxes, Wood, Cleated-Plywood. PPP-B-621 - Box, Wood, Nailed and Lock-Corner. PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-640 - Boxes, Fiberboard, Corrugated, Triple-Wall. MILITARY MIL-P-116
5、 - Preservation, Methods of. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-a
6、ddressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 4210 DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited THIS DOCUMENT CONTAINS 7 PAGES Provided by IHSNot for ResaleNo reproduction or networking pe
7、rmitted without license from IHS-,-,-MIL-S-ZLI6bO LI2 7777706 0233007 O - STANDARDS MILITARY MIL-STD-105 - Sampli g Pro Attributes. edures and Tables for Inspection By MIL-STD-129 - Marking for Shipment and Storage. (Copies of specifications and standards required by contractors in connection with s
8、pecific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which
9、are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the non- government documents which is current on the date of the solicitation. AMERICAN SOCIETY FOR TEST
10、ING AND MATERIALS (ASTM) B 16 - Standard Specification for Free-Cutting Brass Rod, Bar, B 584 - Standard Specification for Sand Castings for General D 3951 - Standard Practice for Commercial Packaging. and Shapes for Use in Screw Machines. (DoD adopted) Applications. (DoD adopted) (DoD adopted) (App
11、lication for- copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. These documents also m
12、ay be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this S
13、pecification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS i 3.1 General requirements. Sprinkler heads shall meet the mnimum spray pattern shown on figure 1 and shall not e
14、xceed the maximum delivery rates shown in table I. deck below of not less than 80 percent within the minimum spray pattern of figure 1. The sprinkler head shall provide a surface area coverage on the 3.2 Material. Sprinkler head bodies shall be made of copper alloy conforming to QQ-C-390, alloy C953
15、, ASTM B 584, alloys 836 or 838, or ASTM B 16, alloy 360. Heads having deflector plates and support arms may be made of the same copper alloys noted herein. #e=?- . 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-S-24bbO 42 7773706 0233008 2 M
16、IL-S-24660 (SH) 3.2.1 Recovered materials. Unless otherwise specified herein, all a equipment, material, and articles incorporated in the products covered by this specification shall be new and may be fabricated using materials produced from recovered materials to the maximum extent practicable with
17、out jeopardizing the intended use. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. be interpreted to mean that the,use of used or rebuilt products is allowe
18、d under this specification unless otherwise specifically specified. None of the above shall 3.2 Construction. The sprinkler head may have a single or multiple open orifice directing the stream at a minimum homogeneous conical spray angle of 180 degrees. threads for installation. The thread length sh
19、all suit the fitting. The minimum size of any orifices shall be as specified in table I (see 6.2). base shall be no larger than 1-3/4 inches square or hexagonal in shape. overall maximum length shall not exceed 2-1/2 inches and the overall weight shall not exceed 13 ounces. name or trademark shall b
20、e stamped, cast or engraved on one side of the base. The body shall be designed with 1/2-inch tapered male pipe The The The angle of discharge, orifice size, and manufacturers TABLE I. Discharge capacit 7 Inches Orif ice min imum a size orif ice 16 O. 203 18 ,250 21 .281 24 .328 28 .375 32 .438 and
21、orifice sizes for 180 degrees sprinkler heads. Capacity gallons per minute (gal/min) I 50 pounds per square inch ( lb/in2) 100 lb/in2 Minimum I Maximum 1 Minimum I Maximum 7 13 15 20 26 36 9 15 17 24 30 40 11 18 21 28 37 52 13 20 25 32 41 58 3.4 Workmanship. Fittings shall be sound, smoothly cored,
22、true to form, They shall be thoroughly cleaned, both uniform in texture, and free from cold shunts, porosity, or any other defects which may affect their serviceability. inside and outside, and all fins and roughness shall be removed. Defects to sprinkler heads shall be repaired or welded only when
23、the maximum depth does not exceed 20 percent of the casting thickness and individual repair areas do not involve more than 4 percent of the casting surface. adversely affect the strength, use or machinability of the sprinkler head. Any repair shall not 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibil
24、ity for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise speci- fied in the contract or purchase order, the contractor may use his own or any a 3 Provide
25、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-24660 q2 7777706 0233007 4 M other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perf
26、orm any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. a part of the contractors overall i
27、nspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in q
28、uality conformance does not authorize submission of known defective material. either indicated or actual, nor does it commit the Government to acceptance of defective material. The inspection set forth in this specification shall become 4.2 Quality conformance inspection. 4.2.1 Lot. Sprinkler heads
29、of the same design and orifice size offered for delivery% one time shall be considered a lot for purposes of inspection. 4.2.2 Sampling for visual and dimensional examination. A random sample of sprinkler heads shall be selected from each lot in accordance with MIL-STD-105 at inspection level II for
30、 the examination of 4.3. The acceptable quality level shall be 1.5 percent defective. containing one or more visual or dimensional defects shall be rejected, and if the number of defective sprinkler heads in any sample exceeds the acceptance num- ber for that sample, the lot represented by the sampl
31、e shall be rejected. Any sprinkler head in the sample 4.2.3 Sampling for tests. A random sample of sprinkler heads shall be selected from each lot in accordance with MIL-STD-105 at inspection level III for lots of 65 and under, inspection level II for lots of 66 to 500, and inspec- tion level I for
32、lots of 501 and over for the tests of 4.4. The acceptable quality level shall be 2.5 percent defective. Any sprinkler head not meeting the requirements of this specification shall be rejected, and if the number of nonconforming sprinkler heads in any sample exceeds the acceptance number for that sam
33、ple, the lot represented by the sample shall be rejected. 4.3 Visual and dimensional examination. Each of the sample sprinkler heads selected in accordance with 4.2.2 shall be visually and dimensionally examined to verify compliance with the requirements specified herein. 4.4 Test procedures. Each s
34、ample sprinkler head shall be subjected to a performance test to determine compliance with the flow characteristics specified herein (see figure 1 and table I). 4.5 Inspection of packaging. Sample packages and packs, and the inspec- tion of the preservation-packaging, packing and marking for shipmen
35、t and stor- age shall be in accordance with the requirements of section 5 and the documents specified therein. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- I MIL-S-2Libb0 Li2 m 9977906 0233030 O K MIL-S-24660(SH) 5 a PACKAGING (The packaging re
36、quirements specified herein apply only for direct Govern- ment acquisition. of referenced documents listed in section 2, see 6.3.) For the extent of applicability of the packaging requirements 5.1 Preservation. Preservation shall be level A, Cy or commercial, as specified (see 6.2). 5.1.1 Level A. T
37、he sprinkler heads shall be individually preserved method III of MIL-P-116 in a water resistant folding or set-up paperboard box. 5.1.2 Level C. Sprinkler heads shall be preserved as specified for level A except that boxes may be of the non-water resistant domestic type or grade. 5.1.3 Commercial. S
38、prinkler heads shall be preserved in accordance with ASTM D 3951. 5.2 Packing. Packing shall be level A, By C or commercial, as specified (see 6.2). 5.2.1 Level A. Sprinkler heads preserved as specified in 5.1 shall be packed in nailed wood or wood cleated plywood boxes conforming to PPP-8-621, clas
39、s 2, or PPP-B-601, overseas type, at the option of the contractor. Shipping containers shall be closed and banded in accordance with the applicable container specification or appendix thereto. exceed 200 pounds. The gross weight of the boxes shall not 5.2.2 Level B. Sprinkler heads packaged as speci
40、fied shall be packed in a fiberboard box conforming to PPP-B-636, class weather resistant, grade V, or triple wall corrugated fiberboard box conforming to PPP-B-640, class 2. Variety and style of the box shall be at the contractors option. Adhesive shall not be used for box closure. The gross weight
41、 of fiberboard boxes shall not exceed the weight limitation of the box specification. 5.2.3 Level C. Sprinkler heads packaged as specified shall be packed in a fiberboard box conforming to PPP-3-636, class domestic, or triple wall corru- gated box conforming to PPP-B-640, class 1. Variety and style
42、of the box shall be at the contractors option. gross weight of fiberboard boxes shall not exceed the weight limitation of the box specification. Adhesive shall not be used for closure. The 5.2.4 Commercial. Sprinkler heads preserved as specified (see 6.2) shall be packed in accordance with ASTM D 39
43、51. 5.3 ?farking. In addition to any special marking specified in the contract or purchase order, interior packages and exterior shipping containers shall be marked in accordance with MIL-STD-129 for levels A, 3, and C; in accordance with ASTM D 3951 for commercial. 5 Provided by IHSNot for ResaleNo
44、 reproduction or networking permitted without license from IHS-,-,-,-. MIL-S-2qbhO q2 9 737370b 0233013 2 9 MIL-S-24660 (SH) 5.4 Use of loose-fill material. 5.4.1 For all levels and commercial packing. Unless otherwise approved by the contracting activity (see 6.2), use of loose-fill materials for d
45、omestic shipment and early equipment installation and commercial packaging and packing applications such as cushioning, filler and dunnage is prohibited. When approved, unit packages and containers (interior and exterior) shall be marked and labeled as follows: “CAUTION Contents cushioned with loose
46、-ill material. Not to be taken aboard ship. loose-fill material before shipboard storage. required, recushion with cellulosic material, bound fiber, fiberboard or transparent flexible cellular material. Remove and discard If 11 .5.4.2 For preservation and levels A, By and C packing. Use of loose-fil
47、l material is prohibited for preservation and levels A, B, and C packing applica- tions such as cushioning, filler and dunnage. 6. NOTES 6.1 Intended use. The sprinkler heads covered by this specification are for use in sprinkler systems installed in magazines with high density cargo loadouts. 6.2 O
48、rdering data. Acquisition documents should specify the following: (a) Title, number, and date of this specification. (b) Orifice size (see 3.3 and table I). (c) Level of preservation and packing required (see 5.1 and 5.2). (d) When loose-fill material is approved (see 5.4.1). 6.3 Sub-contracted mate
49、rial and parts. The packaging requirements of referenced documents listed in section 2 do not apply when material and parts are acquired by the contractor for incorporation into the equipment and lose their separate identity when the equipment is shipped. Preparing activity: Navy - SH (Pro j ect 42 10 -N19 9 ) ! 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Y I MIL-S-24hbO 42 W 7779706 0233032 4 = J
