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MIL-G-24748A
GASKETS, METALLIC AND RUBBER, FOR USE IN UNION PIPE FITTINGS 1/4 TO 2-INCH NPS WITH VARIOUS FLUIDS FROM -30 DEG. F (-34 DEG. C) TO 400 DEG. F (204 DEG. C)
| contributor author | NAVY - SH - Naval Sea Systems Command (Ship Systems) | |
| date accessioned | 2017-09-04T18:25:57Z | |
| date available | 2017-09-04T18:25:57Z | |
| date copyright | 01/12/1994 | |
| date issued | 1994 | |
| identifier other | IKEYDAAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho162sear79D405273/handle/yse/208142 | |
| description abstract | This specification covers gaskets, metallic and rubber, consisting of a nitrile or ethylene-propylene rubber inner ring attached to a copper-alloy cast outer metallic ring for use as a static seal in union connections of piping systems in air, water, steam, and petroleum products. |Gaskets shall be of the following types, categorized by the rubber portion of the gasket (see 3.2.2), as specified (see 6.2). | a. Type A - NBR (Nitrile rubber) inner ring b. Type B - EPM (Ethylene-propylene rubber) inner ring Gaskets shall conform to the dimensions shown in 3.3.1 for the specified nominal size required (see 6.2). Intended Use: Gaskets defined in this specification are suitable for use as a static seal in union connections in accordance with MIL-F-1183, MIL-F-24227, or similar applications. The gaskets are compatible with the fluid and corresponding temperature range (minimum/maximum) identified in table IV for each type. Where no limitation is provided for a given classification, that type is not recommended for service with the identified fluid. However, selection of any type for a given application is the responsibility of the user and should consider compatibility of all fluids which are or may be introduced into the system. TABLE IV. Recommended gasket application.| Classification (see 1.2) Fluid -------------------------------------------------------------- Type A Type B --------------------------------------------------------------------------------- Air/gas −30 °F(−34 °C)/250 °F(121 °C) −30 °F(−34 °C)/300 °F(149 °C) Water −30 °F(−34 °C)/250 °F(121 °C) −30 °F(−34 °C)/400 °F(204 °C)1 Steam - 400 °F(204 °C) maximum1 Hydraulic fluids −30 °F(−34 °C)/250 °F(121 °C) - 1 Type B gaskets are suitable in steam and water continuous service up to 400 °F(204°C) and intermittent service up to 425 °F(218°C).TABLE V. Lot acceptance and rejection criteria.1 Reject number2 ---------------------------------------- Inspection lot size Sample size Quality Rejected lot conformance resubmittal Packaging (see 4.4.2) (see 4.4.3) (see 4.4.4) ---------------------------------------------------------------------------- 2 to 8 2 1 1 1 9 to 15 3 1 1 1 16 to 25 5 1 1 1 26 to 50 8 1 1 1 51 to 90 13 1 1 2 91 to 150 20 2 1 2 151 to 280 32 2 1 3 281 to 500 50 3 2 4 501 to 1,200 80 4 3 6 1,201 to 3,200 125 6 4 8 3,201 to 10,000 200 8 6 11 10,001 to 35,000 315 11 9 15 35,001 to 150,000 500 15 13 22 150,001 to 500,000 800 22 19 22 500,001 and over 1,250 22 19 22 1 If the inspection lot successfully passes the table III criteria, those units found defective during inspection shall be replaced with acceptable units prior to lot acceptance. For rejected lots, see 4.4.3. 2 Reject number indicates the minimum number of defective units per sample size needed for rejection of the entire inspection lot. Inspect the sample size until the reject number is reached. | |
| language | English | |
| title | MIL-G-24748A | num |
| title | GASKETS, METALLIC AND RUBBER, FOR USE IN UNION PIPE FITTINGS 1/4 TO 2-INCH NPS WITH VARIOUS FLUIDS FROM -30 DEG. F (-34 DEG. C) TO 400 DEG. F (204 DEG. C) | en |
| type | standard | |
| page | 18 | |
| status | Active | |
| tree | NAVY - SH - Naval Sea Systems Command (Ship Systems):;1994 | |
| contenttype | fulltext | |
| subject keywords | Copper-alloy cast | |
| subject keywords | Inner ring | |
| subject keywords | Outer ring | |
| subject keywords | Static seal |
