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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)
Organization:
NAVY - SH - Naval Sea Systems Command (Ship Systems)
Year: 1994
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).
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.|
|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.
Subject: Copper-alloy cast
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| 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 | https://lib.yabesh.ir/std/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 |