1、MIL-S-24235C m 9979906 L974297 942 m MIL-S-2423 =T C(SH) SUPERSEDING 21 August 1989 (See 6.7) MIL-S-24235B(SH) MILITARY SPECIFICATION STUFFING TUBES, METAL, AND PACKING ASSEMBLIES FQR ELECTRIC CABLES, GENERAL SPECIFICATION FOR This specification is approved for use by the Naval Sea Systems Comamnd,
2、Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 ScoDe. This specification covers metal stuffing tubes for passing electrical cables through decks and bulkheads and entering enclosed equipment on Naval ships and packing assem
3、blies for stuffing tubes. 1.2 Cla ssification. Metal stuffing tubes and packing assemblies shall be 1.2.1 H- ber. The military part number shall consist of the types as specified (see 3.1 and 6.2). letter “H“, the basic number of the specification sheet, and an assigned dash number (see 3.1) as show
4、n in the following example: M 2423u Military Specification Dash designator sheet number number 1.2.2 Sizes. Sizes shall be as specified (see 3.1 and 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addre
5、ssed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or r by letter. .L AMSC N/A FSC 5975 ;. Approved for public releas
6、e; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-S-24235C m 9999906 1974298 889 m 2. APPLICABLE DOCNMENTS 2.1 Government documents. 2.1.1 SDecifications. standards. and handbooks. The following specifications, standar
7、ds, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.
8、2). SPECIFICATIONS FEDERAL L-P-410 FF-W-84 - FF-S-86 QQ-A-250 - QQ-A-250/2 - QQ-A-250/11 - QQ-A-591 - * QQ-A-601 - QQ-C-390 - QQ-C-465 - QQ-C-502 QQ-N-286 - QQ-S-763 - QQ-W-321 - W-G-671 W-T-700 - WW-T-700/5 - 22-R-765 - PPP- F- 320 - MILITARY MIL-C-17 MIL-R- 900 MIL-S-901 MIL-C-915 MIL-R-6855 Plast
9、ic, Polyamide (Nylon) Rigid, Rods, Tubes, Flats, Molded and Cast Parts. Washers, Lock (Spring). Screw, Cap, Socket-Head. Aluminum and Aluminum Alloy Plate and Sheet: General Aluminum Alloy 3003, Plate and Sheet. Aluminum Alloy 6061, Plate and Sheet. Aluminum Alloy Die Castings. Aluminum Alloy Sand C
10、astings. Copper Alloy Castings (Including Cast Bar). Copper-Aluminum Alloys (Aluminum Bronze) (Copper Alloy Numbers 606, 614, 630, and 642); Rod, Flat Products with Finished Edges (Flat Wire, Strip and Bar), Shapes, and Forgings (Use ASTM B124, 8150, B169 and B283). Copper Rods and Shapes; and Flat
11、Products with Finished Edges (Flat Wire, Strips and Bars). Nickel-Copper-Aluminum Alloy, Wrought (UNS NOSSOO). Steel Bars, Wire, Shapes and Forgings, Corrosion Wire, Copper Alloy. Grease, Graphite. Tube, Aluminum Alloy, Drawn, Seamless, 5052 General Tube, Aluminum Alloy, Drawn, Seamless, 5086. Rubbe
12、r, Silicone. Fiberboard, Corrugated and Solid, Sheet Stock Specification for. Resisting. Specification for. (Container Grade), and Cut Shapes. - Cables, Radio Frequency, Flexible and Semirigid, - Rubber Gasket Material, 45 Durometer Hardness. - Shock Tests, H.I. (High-Impact): Shipboard Machinery, E
13、quipment and Systems, Requirement for. - Cable and Cord, Electrical, for Shipboard Use, General Specification for. O - Rubber, Synthetic, Sheets, Strips, Molded or Extruded Shapes. General Specification for. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
14、IHS-,-,-MIL-S-24235C m 9999906 1974299 715 H I MIL-S-24235C(SH) MILITARY - Continued MIL-S-8660 MIL-P-15024 MIL-P-15024/5 MIL-R-15624 MIL-S-16974 MIL-1-17214 MIL-E- 17555 MIL-F-18240 MIL-L-19140 MIL-S-21952 MIL-S-22698 MIL-S-23284 MIL-S-24093 MIL-B-24480 DOD-F-24669 DOD-F-24669/1 MIL-C-24707 MIL-C-2
15、4707/1 KIL-C-24707/3 MS28775 HANDBOOK MILITARY MIL-HDBK- 149 - Silicone Compound NATO Code Number S-736. - Plates, Tags and Bands for Identification of Equip- ment. Plates, Identification. Rubber Gasket Haterial, 50 Durometer Hardness (Maximum) . Steel Bars, Billets, Blooms and Slabs: Carbon and All
16、oy (For Reforging or Other Operations Before Heat Treatment), (Use DOD-F-24669/1). Indicator, Permeability; Low-Mu (Go-No Go). Electronic and Electrical Equipment, Acc%ssorfeb, and Provisioned Items (Repair Parts): Packaging of. Fastener, Externally Threaded, 250F Self-Locking Element for. Lumber an
17、d Plywood, Fire-Retardant Treated. Steel (HY-BO and “100) Bars, Alloy. Steel Plate, Shapes and Bars, Weldable, Ordinary Strength, and Higher Strength: Structural. Steel Forgings, Carbon and Alloy, For Shafts, Sleeves, Couplings, and Stocks (Rudders and Diving Planes). Steel Forgings, Carbon and Allo
18、y, Heat Treated. Bronze, Nickel-Aluminum (UNS No. C95899), Castings for Seawater Service. - Forgings and Forging Stock, Steel Bars, Billets and Blooms, General Specification for (METRIC) - Forgings and Forging Stock, Steel (Carbon and Alloy), Blooms, Bars, Billets, and Slabs. - Castings, Ferrous, Ge
19、neral Specification for. - Castings, Ferrous, for Machinery and Structural - Castings, Ferrous, Corrosion Resistant, Austenitic, - Packing, Preformed, Hydraulic, +275 Degree F, Applications. Chromium-Nickel. (“O“ Ring) . - Military Standardization Handbook, Rubber. (See Supplement 1 for a list of as
20、sociated specification sheets.) STANDARDS FEDERAL FED-STD-H28 - Screw-Thread Standards for Federal Services. FED-STD-H28/2 - Screw-Thread Standards for Federal Services, Section 2, Unified Inch Screw Threads - UN and UNR Thread Forms. 3 Provided by IHSNot for ResaleNo reproduction or networking perm
21、itted without license from IHS-,-,-. .- MIL-S-24235C m 7777706 1974300 267 I MILITARY HIL-STD-167-1 - Mechanical (Type I - Vibrations of Environmental Shipboard Equipment and Type II - Internally Excited). MIL-STD-889 - Dissimilar Metals. (Unless otherwise indicated, copies of federal and military s
22、pecifications, standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4, Sec. D, Philadelphia, PA 19111-5094.) 2.2 pon-Govement publications. The following documents form a part of this document to the extent specified herein Unless otherwise specified, the issue
23、s of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE (ANS
24、I) B46.1 - Surface Texture Surface Roughness, Waviness and Lay. (DOD adopted) (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 53 - A 108 - A 322 - A 331 - A 441 - A 569 -
25、 E 124 - B 150 - E 169 - B 210 - B 211 - B 283 - B 633 - Standard Specification for Pipe, Steel, Black and Hot- Standard Specification for Steel Bars, Carbon, Cold Standard Specification for Steel Bars, Alloy, and Standard Specification for Steel Bars, Alloy Cold Standard Specification for High-Stre
26、ngth, Low-Alloy, Standard Specification for Steel, Carbon (0.15 Maximum, Dipped, Zinc Coated, Welded, and Seamless. Finished, and Standard Quality. S tandard Grades. Finished. Structural Manganese Vanadi- Steel. Percent), Hot-Rolled Sheet, and Strip Commercial Qual i ty . Standard Specification for
27、Copper and Copper-Alloy Forg- ing Rod, Bar and Shapes. Standard Specification for Aluminum Bronze Rod, Bar, and Shapes. Standard Specification for Aluminum Bronze Plate, Sheet, Strip, and Rolled Bar. Standard specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes. Standard Specification
28、for Aluminum and Aluminum-Alloy Bar, Rod, and Wire. Standard Specification for Copper and Copper-Alloy Di Forgings (Hot-Pressed). e. Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
29、from IHS-,-,-MIL-S-24235C E 9999906 3974303 IT3 m D 2240 - Standard Test Method for Rubber Property - Durometer Hardness. (WD adopted) (Application for copies should be addressed to the American Society for Tes .and Materials, 1916 Race Street, Philadelphia, PA 19103.) t ing (Non-Government standard
30、s and other publications are normally available from the organizations that prepare or distribute the docttlllents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of oreCedenCe. In the event of a conflict between the text of this document an
31、d the references cited herein (except for related associated detail specifications or specifications sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 S
32、Decification sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 First article. When spec
33、ified (see 6.2), a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.3. 3.3 yatertals. Materials shall be as specified (see 3.1). The contractor may select any material that will satisfactorily perform the intended function in the equipment and will otherwise compl
34、y with the requirements of this specification (see 6.2). . 3.3.1 Dissimilar metals. Dissimilar metals shall be in accordance with MIL-STD-889. 3.3.2 Mercury. Mercury in any fob shall not be used in shipboard equipment, including materials and parts thereof. Mercury shall not be used in manufacturing
35、 and test processes (including test equipment. such as mercury indicators) applying to the basic equipment; but may be used in the manufacturing and test processes for materials and parts provided it is used in such a way that the materials and parts themselves cannot be contaminated. No instruments
36、 containing mercury shall be used in the manufacture of testing of any equipment destined for installation on a nuclear powered ship. 3.3.3 Recovered materials. Unless otherwise specified herein, all equipment, material, and articles incorporated in the products covered by this specification shall b
37、e new and may be fabricated using materials produced from recovered materials to the maximum extent practicable without 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 mate
38、rials, as opposed to virgin raw materials. None of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
39、IHS-,-,-MIL-S-24235C m 9997706 L774302 03T N 3.4 pes- and cpgstructioq. The stuffing tubes, packing assemblies, and accessories (fitters and dummy plugs) shall be of the design, construction, and physical dimensions as specified (see 3.1). 3.4.1 Small miscellaneous hardware. Miscellaneous hardware s
40、uch as screws and attachment chains shall be of a good comercial grade, corrosion-resistant or protected against corrosion. Self - tapping screws or other self - tapping devices shall not be used in the assembly of components. 3.4.2 meads. Unless otherwise specified, threads shall be unified form (U
41、N), class 2A or 2B as specified in FED-STD-H28 and FED-STD-H28/2. The nominal site and threads per inch shall be as specified in the applicable specification sheet. 3.4.3 Gland nuts. Gland nuts may be machined from wrought material or cast with an octagon-shaped head. 3.4.4 Castinszs Cast components
42、, such as split-type stuffing tube bodies or gland nuts, shall. be free from cold shuts, blow holes, or any other imperfections that may in any way affect the strength or serviceability of the casting. Any fins or burrs on casting surfaces shall be removed. 3.4.5 m. Fo i Forming and machining operat
43、ions 3.4.6 Sedges. Sharp edges and corners shall be given a slight radiu e shall be completed before any specified plating or finish is applied. ,3.4.7 s su. a Unless otherwise specified (see 3.1), machined tube bodies and gland nuts shall have a maximum surface roughness of 250 microinches. Surface
44、 finish shall be in accordance with ANSI B46.1. Cast surfaces need not be machined and shall have a surface texture commensurate with the type of casting. 3.4.8 PressureDroof bulkhead stufffnp tubes (submarines). 3.4.8.1 fiaterial control. The contractor shall provide and maintain an objective quali
45、ty evidence of chemical analysis and physical properties of tube body material per heat from the mill, traceable from the part number on the final product (see 4.5 and 6.3). 3.4.8.2 Tube body. For special applications requiring an extended tube body, the center section and the overall length dimensi
46、on and material for submarine pressureproof bulkhead stuffing tubes shall be as Specified (see 3.1 and 6.2). 3.4.8.3 Mck washez. Lock washer edges shall have a radius of approximately 1/32 inch, applied by tumbling or other means. 6 Provided by IHSNot for ResaleNo reproduction or networking permitte
47、d without license from IHS-,-,-3.1.9 Ballast tank stuffine tubes. Unless otherwise specified (see 6.2). ballast tank stuffing tubes shall be of the materials specified on the applicable specification sheet. 3.4.9.1 packina nland retainer screws. Packing gland retainer (cap) screws shall meet the tor
48、que requirements of MIL-F-18210. 3.4.10 . completion of the contract and then turned over to the designated Government representative. 4.6 &JU.U! o. I 4.6.1 to verify that the and workmanship are 3.5 and 3.6). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
49、IHS-,-,-k.7 rests. 4.7.1 Purometer hardness. Sample grommets shall be subjected to the tyPe A durometer test specified in ASTM D 2240 to verify compliance with the requirements of 3.4.13.2. 4.7.2 &meability. Weather deck outlet metal parts shall be tested With a low-Mu permeability indicator conforming to MIL-1-17214 to verify compliance with the value specified in 3.4.12.3. 4.8 JnsDecfion of DackaPing. Sample packs and the inspection of Pac
