5310-00-469-4490 WASHER,SPECIAL Index 5330-00-469-4493 RING,BACK UP

National Stock Number:
5330-00-469-4492

Federal Supply Class:
5330

National Item Identification Number:
004694492

Description:
GASKET

Detail:
A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see WASHER, FLAT; SHIM; BEARING, WASHER, THRUST; and SPACER RING. Excludes DISK, VALVE; SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; SEAL, NONMETALLIC SPECIAL SHAPED SECTION; SHIELDING GASKET, ELECTRONIC; and RING, SEALING JAR.


Manufacturer Information:
12Y1542-981755LOCKHEED MARTIN CORPORATION


Techincal Specification:
APERTURE DIAMETER1.950 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.220 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
FIRST BOLT CIRCLE DIAMETER2.680 INCHES NOMINAL
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
LARGEST BOLT HOLE QUANTITY10
LARGEST BOLT HOLE DIAMETER0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
OUTSIDE DIAMETER5.000 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-5847 CLASS 3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL
SMALLEST BOLT HOLE DIAMETER0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
SMALLEST BOLT HOLE QUANTITY6
SECOND BOLT CIRCLE DIAMETER4.250 INCHES NOMINAL
STYLE DESIGNATOREQUALLY SPACED BOLT HOLES


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