1、MIL-G-35342E 53 m 7777706 0300847 4 W E -63 -/a MIL-G-l5342E(SH) 5 January 1987 SUPERSEDING MIL-G-l5342D(SH) 5 June 1976 (See 6.5) MILITARY SPECIFICATION GASKETS, METALLIC, SPIRAL WOUND FOR BOILERS This specification is approved for use within the Naval Sea Systems Command, Department of the Navy, a
2、nd is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers metallic spiral wound gaskets for handholes and manholes of shipboard and stationary boilers. Steam generators for nuclear plants are excluded. 1.2 Classification. Gask
3、ets shall be of the following classes and series, as specified (see 6.2): Class 1 - Boiler handhole: . (a) Series 600-850 degrees Fahrenheit (OF) (b) Series 1500-950F (a) Series 600-500F (b) Series 1500-600F Class 2 - Boiler manhole: 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specificat
4、ions and standards. The following 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) an
5、d supplement thereto, cited in the solicitation. Beneficial commenJs (recommendations, additions, deletions) and any pertinent datawhich 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
6、by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 5330 DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited , Provided by IHSNot for ResaleNo reproduction or networking per
7、mitted without license from IHS-,-,-SPECIFICATIONS FEDERAL PPP-B-5 6 6 - Boxes, Folding, Paperboard. PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-665 - Boxes: Paperboard, Metal Edged and Components. PPP-B-676 - Boxes, Setup, MILITARY MIL-L-10547 - Liners, Case, and Sheet, Overwrap; Water- Vaporpro
8、of or Waterproof, Flexible. STANDARDS FEDERAL FED-STD-151 - Metals; Test Methods. MILITARY MIL-STD-105 MIL-STD-129 MIL-STD-2073-1A - DoD Material Procedures for Development and - Sampling Procedures and Tables for Inspection - Marking for Shipment and Storage. by Attributes. Application of Packaging
9、 Requirements. 2.1.2 Government drawing. The following Government drawing forms a part of this specification to the extent specified herein. specified, the issues shall be those in effect on the date of the solicitation. Unless otherwise DRAWING NAVAL SEA SYSTEMS COMMAND (NAVSEA) 803-5959278 - Gaske
10、t, Main Boiler Handhole and Manhole. (Copies of specifications, standards and drawings required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following documen
11、ts form a part of this specification to the extent specified herein. issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents which
12、is current on the date of the solicitation. Unless otherwise specified, the Unless otherwise specified, AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 167 - Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip. (DoD adopted ) - Standard Specifica
13、tion for Heat-Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels. A 240 (DoD adopted) D 512 - Standard Test Methods for Chloride Ion in Water. D 3951 - Standard Practice for Commercial Packaging. Provided by IHSNot for ResaleNo reproduction or network
14、ing permitted without license from IHS-,-,-c MIL-G-153V2E 53 W 7799906 01008L17 8 m a . a a (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT National Motor
15、 Freight Classification (Application for copies should be addressed to the National Motor Freight Traffic Association, Inc., ATA TRAFFIC Dept., 2200 Mill Road, Alexandria, VA 22314.) TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY (TAPPI) T256-Water-Soluble Chlorides in Pulp and Paper. (Applica
16、tion for copies should be addressed to the Technical Association of the Pulp and Paper Industry, 1 Dunwoody Park, Atlanta, GA 30338.) UNIFORM CLASSIFICATION COMMITTEE AGENT Uniform Freight Classification Ratings, Rules and Regulations (Application for copies should be addressed to the Uniform Classi
17、fication Committee Agent, Tariff Publication Officer, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or t
18、hrough 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 specifi- cation shall ta
19、ke precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 REQUIREMENTS 3.1 Qualification. Metallic spiral wound gaskets furnished under this specification shall be products which are qualified for listing o
20、n the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3). 3.2 Construction. Gaskets shall be composed of a single thickness of metal wound in a flat spiral shape, starting on the inside and working outward ply by ply to the desired size. Between the plies of met
21、al shall be a cushion of filler material wound to conform with the metal strip. For class 1 and 2 gaskets, spot welds, shall be as shown on Drawing 803-5959278. 3.2.1 Dimensions and tolerances. Unless otherwise specified (see 6.2), gaskets shall conform to the dimensions, tolerances and other requir
22、ements as shown on Drawing 803-5959278. Class 2 gaskets shall be elliptical in shape. 7 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ElIL-C*-15342E( SH) 3.2.2 P Plies. iller strip, Gaskets shall be wound on a mandrel of the desired shape. one co
23、mplete revolution, the initial spot welds shall be made. midway during the next revolution, the filler strip shall be introduced. shall continue to make the product contain the number of plies of filler required. A minimuni of two plies of metal shall then be made and then the terminal spot welds sh
24、all be made. A ply shall consist of one 360-degree turn of the metal or After Winding Approximately 3.3 Materials . 3.3.1 Metal strip. the following materials: II The metal strip used in the gasket shall be one of t (a) Corrosion-resisting steel (UNS S34700), cold rolled and annealed in accordance w
25、ith ASTM A 167, type 347, or ASTM A 240, type 347. (b) Corrosion-resisting steel (UNS S31603) , in accordance with ASTM A 167, type 316L, or ASTM A 240, type 316L1 (c) Corrosion-resisting steel, (UNS S30908) in accordance with ASTM A 167, type 309S, except that type 309s shall he stabilized with col
26、umbium (and tantalum not exceeding 0.10 percent) and their combination to be not less than 10 times the carbon content. 3.3.1.1 Thickness. The thickness of the metal strip shall be between 0.0063 and 0.0088 inch. 3.3.2 Filler material. The filler material shall be in paper strip form and shall be in
27、 accordance with Drawing 803-5959278. The material shall be selected for low chloride content (see 3.3.2.1). The filler material shall contain less than SOO parts per million (p/m) of zinc and shall not contain the following: (a) Grease, lead or lead components, mercury or (b) Asbestos fibers and co
28、mponents containing mercury compounds. asbestos fibers. 3.3.2.1 Chloride content of filler. The chloride content of the filler material shall meet the following requirements, when tested as specified in 4.6.2.1 and 4.6.2.2: (a) (b) Water leachable - Not greater than 220 p/m. Total chlorides - Not: g
29、reater than 550 p/m, 3.3.3 Recovered materials. Unless otherwise specified herein, 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 without jeopardiz
30、ing 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. None of the above shall be interpreted to mean that the use of used or rebuilt product
31、s is allowed under this specification unless other- wise specifically specified. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a 2 3.4 Service conditions. 3.4.1 Service conditions and temperature ratings. Gaskets shall be sated for service at the
32、 temperatures specified in 1.2. 3.4.2 Service condition of bearing surface. Gaskets shall be rated for service in connection with flat smooth surfaces having finishes of spiral or concentric lay of 60 to 80 serrations per inch and a roughness height rating (RHR) of 125. 3.5 Cyclic and hydrostatic te
33、st. There shall be EO visible steam or water Upon completion leakage rom the flanged joint after the first five cycles of the service test or during the hydrostatic test, when tested as specified in 4.6.3. of the tests, the gasket shall remain intact (metal strip and spot weld unbroken). 3.6 Marking
34、. Unless otherwise specified (see 6.2), gaskets shall be marked with a sturdy paper tag (of tag stock) securely attached thereto, which shall contain thereon the following information: The manufacturers name; gasket size, including shape, thickness, inside and outside dimensions; type of metal and f
35、iller material; pressure and temperature rating, national stock number, and customers order number. For class 1, at least one tag shall be applied to each 25 gaskets or less. For class 2 gaskets, each gasket shall be tagged. 3.7 Workmanship. The finished gaskets shall have no breaks, creases or shar
36、p edges. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspectiin requirements as specified herein. in the contract or purchase order, the contractor may use hi
37、s own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure s
38、upplies and services conform to prescribed requirements. Except as otherwise specified 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspections set forth in this specification shall become a part of the contractors overall inspection system or qu
39、ality 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 quality conformance doe
40、s not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) Qualification inspection (see 4.3)
41、 (b) Quality conformance inspection (see 4.4). 5 - /-e7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-l5342E( SH) 4.3 Qualification tests. Qualification tests shall be conducted at a laboratory satisfactory to NAVSEA. examinations and tests s
42、pecified in 4.5 and 4.6. Contractors shall furnish a miniinuni of six representative samples for each class and series of gasket for which qualification is desired. Qualification tests shall consist of the 4.4 Quality conformance inspection. Each of the sample gaskets selected in accordance with 4.4
43、.1.2 shall be analyzed in accordance with method 111 of FED-CTD-151 to determine compliance with 4.5. If any sample fails to conform to 4.5, this shall be cause for rejection of the entire lot. 4.4.1 Sampling. 4.4.1.1 - Lot. Gaskets of the same size and series manufactured from the $ame batch of mat
44、erial and presented at one time shall be considered a lot: for purposes of examination and tests. 4.4.1.2 Sampling for examination. A random sample of gaskets shall be selected from each lot of material offered for inspection of visual and dimensional characteristics in accordance with the sampling
45、procedures of MIL-STD-105, inspection level S-4. 1.5 percent defective. Acceptable quality level (AQL) shall be 4.4.1.3 Sampling for chemical analysis. 4.4.1.3.1 Metal strip. Five feet of uncrimped metal strip representing the lot shall be forwarded to the testing facility for purposes of chemical a
46、nalysis of metal. 4.4.1.3.2 Filler. Fifty grams of the filler paper representing the lot shall be forwardbd to the testing facility for purposes of chemical analysis. 4.5 Visual and dimensional examination. Each of the sample gaskets selected in accordance with 4.4.1.2 shall be visually and dimensio
47、nally examined to verify compliance with this specification. or more defects shall not be offered for delivery, and if the number defective exceeds th acceptance number, this shall be cause for rejection of the lot repre- sented by the sample. Examination shall be conducted as specified in table 1.
48、Any gasket in the sample containing one Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L VIL-G-153qZE 53 R 9777906 0100853 T MIL-G-15342E(SH) Categories Critical Major : 101 102 103 104 105 106 107 108 109 110 111 Minor TABLE I. Classification of de
49、fects. - Defects 4.6 Tests. 4.6.1 Chemical analysis of metal strip. The metal strip selected in compliance with 4.4.1.3.1 shall be analyzed in accordance with method 111 of FED-STD-151 to determine compliance with 3.3.1 and 3.3.1.1. If any sample fails to conform, this shall be cause for rejection of the entire lot. 4.6.2 Chemical analysis of filler material. The filler paper selected in compliance with 4.4.1.3.2 shall be analyzed to determine compli
