1、*- o o a F- . NIL-S-L520LlD 80 W 777770b OlOOBLO 3 W . /-I - 1.5-5q MIL-S-l5204D(SH) 14 August 1984 SUPERSEDING MIL-S-l5204C(SHIPS) 29 September 1972 (See 6.5) MILITARY SPECIFICATION SEALING COMPOUND, JOINT AND THREAD, HIGH TEMPERATURE This specification is approved for use by the Naval Sea Systems
2、Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers sealing compounds for use in threaded and fixed mechanical joints in equipment powered by steam or gas at. temperatures up to 950 degr
3、ees Fahrenheit (OF) and pressure of 1200 pounds per square inch ( lb/in2). 1.2 Classification. High temperature sealing compound shall be of the following types, as specified (see 6.2.1): Type A - Liqrrid form for joints and threads. Type B - Cement form for joints and threads. Type C - Paste form f
4、or turbine gunning grooves. 2, APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified, the follow- ing specifications and standards of the issue listed in that issue of the Depart- ment of Defense Index of Specifications and Standards (DoDISS) s
5、pecified in the solicitation form a part ok this specification to the extent specified herein. SPECIFICATIONS FEDERAL PPP-C-96 - Cans, Metal, 28 Gage and Lighter. PPP-T-1637 - Tubes, Shipping, Collapsible. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may b
6、e af use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 80
7、30 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-k MIL-S-l5204D( SH) STANDARDS FEDERAL FED-STD-123 - Marking for Shipment (Civil Agencies). FED-STD-313 - Material Safety Data Sheets, Preparation and the Submission of. MILITARY MIL-STD-129 - Marking
8、 for Shipment and Storage. (Copies of specifications and standards required by contractors in connec- tion with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of t
9、his specification to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. ASTM D 92 - Flash and Fire Points by Cleveland Open Cup. (DoD adopted) (Application for copies s
10、hould be addressed to ASTM, 1916 Race Street, Philadelphia, PA 19103.) NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT National Motor Freight Classification (Application for copies should be addressed to the National Motor Freight Traffic Association, Inc., ATA TRAFFIC Dept., 1616 “P“ Street
11、, W, Washington, DC 20036.) UNIFORM CLASSIFICATION COMMITTEE AGENT Uniform Freight Classification Ratings, Rules and Regulations (Application for copies should be addressed to the Uniform Classification Committee Agent, Tariff Publication Officer, Room 1106, 222 South Riverside Plaza, Chicago, IL 60
12、606.) (Industry association specifications and standards are generally available or reference from libraries. They are also distributed among technical groups and using Federal agencies.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references ci
13、ted herein, the text of this specifica- tion shall take precedence. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2.1), a sample shall be subjected to first article inspection (see 4.3 and 6.3). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
14、,-,-a 3.2 Materials. 3.2.1 Type A, liquid form. Type A sealing compound shall be a viscous liquid, based on a phenolic or cresylic synthetic resin. 3.2.2 Type B, cement form. Type B sealing compound shall be composed of type A compound and the addition of an inert filler. 3.2.3 Type C, paste form. T
15、ype C sealing compound shall be composed of type A compound and the addition of an inert filler. 3.3 Viscosity. 3.3.1 Type A. The viscosity shall not exceed 40,000 centipoise (see 4.6.1). 3.3.2 Type B. The viscosity shall be not less than 50,000 centipoise nor greater than 200,000 centipoise (see 4.
16、6.1). 3.3.3 Type C. The viscosity shall be not less than 250,000 centipoise nor greater than 700,000 centipoise (see 4.6.1). 3.4 Flash point. The flash point of the sealing compound shall be not less than 120F (see 4.6.2). I 3.5 Solid content. The solid content of the compound shall be not less than
17、 80 percent (see 4.6.3). a 3.6 Simulated performance (type C only). There shall be no steam leakage during the simulated performance test (see 4.6.4) at pressures UP to 600 lb/in2 I and temperatures up to 500F. 3.6.1 Curing (type C only). The cure time shall not exceed 24 hours at the cure temperatu
18、re recommended by the manufacturer, but the maximum cure temperature shall not exceed 250F. 3.7 Labeling. Each container shall be clearly labeled with direction for application, date of manufacture, and the storage life (see 5.2 and 5.3). 3.8 Shelf life. Type C compound shall have a shelf life of at
19、 least 1 year when stored in accordance with contractors requirements. 3.9 Material safety data sheet. The contracting activity shall be provided a material safety data sheet (MSDS) at the time of contract award. The MSDS is DD Form OSHA 20 and is found in and part of FED-STD-313. The MSDS shall be
20、included with each shipment of material covered by this specification. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L c 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the con- tract or purchase ord
21、er, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified here
22、in, 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 supplies and services conform to prescribed requirements. 4.2 Classification of inspections. The inspecti
23、on requirements specified herein are classified as follows: (a) First article inspection (see 4.3). (b) Quality conformance inspection (see 4.5) . 4.3 First article inspection. First article inspection shall consist of the tests as specified in 4.6. 4.3.1 Sampling for first article inspection. A 1-q
24、uart container shall represent a sample for the tests specified in 4.6. 4.3.2 First article inspection report. The contractor shall prepare a first article inspection report in accordance with the data ordering documents included in the contract or order (see 6.2.2). 4.4 Sampling for quality conform
25、ance inspection. 4.4.1 - Lot. For purposes of sampling, a lot shall consist of all compounds of the same type from one production batch. 4.4.2 Sampling for examination of filled containers. A random sample of filled containers shall be selected in accordance with table I for the examin- ation Specif
26、ied in 4.5.1. TABLE I. Sampling for examination of filled containers. Lot size number Sample size number Acceptance number Rejection number of containers to be examined (defective) (defective) Up to 15 16 to 40 41 to 65 66 to 110 111 to 180 181 to 300 301 to 500 501 to 800 801 to 1300 1301 and over
27、2 3 5 7 10 15 25 35 50 70 O O O O O O 1 2 3 4 L 1 1 1 1 1 1 2 3 4 5 J 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-1520LID 80 m 7779706 0100814 O m MIL-S-l5204D(SH) 4.4.3 Sampling for tests. Ten tubes or a l-quart container shall represent
28、 a sample for the tests specified in 4.5.2. 4.5 Quality conformance inspection. 4.5.1 Examination. Each sample filled container shall be examined to verify conformance with the requirements of this specification. Any container in the sample having one or more defects or under required fill shall be
29、re- jected, and if the number of defective containers in any sample exceeds the acceptance number for the appropriate sampling plan, it shall be cause for re- jection of the lot represented by the sample. 4.5.2 Quality conformance tests. The samples selected in accordance with 4.4.3 shall be subject
30、ed separately to the tests specified in 4.6.1 through 4.6.3. If the sample tested is found not to be in conformance with this specification, it shall be cause for rejection of the lot represented by the sample. 4.6 Tests. 4.6,l Viscosity. The samples shall be conditioned for a minimum of 2 hours in
31、a water bath maintained at 77 + 2OP. The viscosity of the compound shall be determined at a temperature of 77-2 2F using a Brookfield viscosimeter model RVT or equivalent. The following speeds (revolutions per minute (r/min) and spindles shall be used: Type Spindle Speed (r /min ) A B C 6 7 7 20 20
32、4 4.6.2 Flash point. The flash point of the compound shall be determined by the Cleveland open cup method in accordance with ASTM D 92. 4.6.3 Solid content. The solid content of the compound shall be obtained as follows: Weigh a number l-A size coors porcelain crucible and cover to an accuracy of 0.
33、01 gram and record as “tare“ for solid content. Place a minimum of 5 or not more than 6 grams of the compound being tested in the bottom of the crucible. This becomes uncured gross weight. Cure by heating in an oven for 2 hours at 200 + 5“F, followed by 2-1/2 hours at 250 + 5F. Remove crucible from
34、oven, cool to room temperature, and again weigh. This becomes the cured weight. The difference between the uncured gross weight and cured weight is the weight loss which is subtracted from the uncured weight to give the solid content. - - 4.6.4 Simulated turbine casing joint service (type C only). T
35、he test shall be conducted in the joints of an apparatus designed to simulate conditions in steam turbine casing joints in actual service use. The faces of the joint shall be machined smooth but shall not be scraped. A half round groove, 3/16-inch deep, shall be milled around the joint face of the l
36、ower casing of the apparatus with a dead end 6 inches from a pumping hole. Tapped holes leading to the groove shall be located at regular intervals around the flange of the lower casing of 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-the apparat
37、us. Triple boiled linseed oil shall be applied to the faces of the upper and lower casing of the apparatus. The casings shall then be uniformly bolted together. When tested without compound, leakage shall occur from the joint at 300 2 10 lb/in2. The compound shall be forced into the groove through o
38、ne of the tapped holes by means of a pressure gun. As soon as the compound is emitted from a hole, the hole shall be plugged and more pressure shall be applied until the compound is emitted from a succeeding hole. This procedure shall be followed until all the holes are plugged, thereby assuring tha
39、t the groove is completely filled with the compound. The apparatus shall then be subjected to superheated steam at practically no pressure so that the casing attains a temperature recommended by the manufacturer (not to exceed 250F) to assure proper cure of the sealant. The cure time shall also be r
40、ecommended by the manufacturer, but it shall not exceed 24 hours. The apparatus shall then be subjected to superheated steam at 600 lb/in2 and 500F temperature. Every 4 hours during the test, the steam shall be shut off for a 1/2-hour period and the apparatus allowed to cool. At the end of these per
41、iods, superheated steam at the same conditions shall be suddenly applied. The test shall continue under this cycle of operation for at least 96 hours; No leakage shall occur from the joint during the test, and on conclusion of the test the joint shall be readily broken. Leakage is defined as condens
42、ation detected on a mirror or polished metal plate when placed within 2 inches of the flange area. 4.7 Inspection of packaging. Sample packages and packs, and the inspection of the preservation-packaging, packing and marking for shipment and storage shall be in accordance with the requirements of se
43、ction 5 and the documents specified therein. S. PACKAGING (The preparation for delivery requirements specified hereh apply only for direct Government acquisition.) 5.1 Packaging. Packaging shall be level A or C as specified (see 6.2.1). 5.1.1 Level A. Types A and B compound shall be furnished in 5-o
44、unce collapsible tubes or in 2-1/4 pound capacity cans as specified (see 6.2.1). !Cype C compound shall be furnished in 1-quart, approximately 2.2-pound cans. 5.1.1.1 Tubes. The collapsible tubes shall be as specified in type I, class 1 or 2 of PPP-T-1637 and intermediate packaged in accordance with
45、 the appendix thereto. Keys, inside lining, and exterior coatings shall not be required. Tube seal shall be accomplished by means of metal clips. 5.1.1.2 Cans. The cans shall be as specified in type V, class 1 or 2 of PPP-(2-96. Exterior plan A coating shall be required. 5.1.2 Level C, Packaging sha
46、ll afford adequate protection against deterioration and damage during shipment from the supply source to the first receiving activity for immediate use. This level may conform to the contractors commerical practice when such meets the requirements of this level. Provided by IHSNot for ResaleNo repro
47、duction or networking permitted without license from IHS-,-,-b MIL-S-L5204D 80 7777706 OLOOBLb 4 m MIL-S-l5204D(SH) 5.2 Packing. Packing shall be level A, B, or C as specified (see 6.2.1). 5.2.1 Level A. 5.2.1.1 Tubes. The tubes shall be packed in accordance with the appendix to PPP-T-1637. When spe
48、cified (see 6.2.l), intermediate fiberboard boxes closed, waterproofed with tape and reinforced in accordance with the appendix to the fiberboard box specification may be used as the shipping container. 5.2.1.2 Cans. The cans shall be arranged and packed in accordance with the overseas requirements
49、of the appendix to PPP-C-96. 5.2.2 Level B. 5.2.2.1 Tubes. The tubes shall be packed in accordance with the appendix to PPP-T-1637. When specified (see 6.2.1), intermediate fiberboard boxes closed, waterproofed with tape and reinforced in accordance with the appendix to the fiberboard box specification may be used as the shipping container. 5.2.2.2 Cans. The cans shall be arranged and packed in accordance with the domestic shipment requirements of the app
