2520-01-176-1966 PISTON Index 5305-01-176-1969 SCREW,MACHINE

National Stock Number:
5330-01-176-1968

Federal Supply Class:
5330

National Item Identification Number:
011761968

Description:
PACKING,PREFORMED

Detail:
A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see WASHER (as modified) and GASKET. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; and SEAL, NONMETALLIC, SPECIAL SHAPED SECTION. For circular (with aperature) nonmetallic items with a solid round cross-section see O-RING. Excludes CUP, COMPRESSION; GASKET; WASHER (as modified); and FELT, MECHANICAL, PREFORMED.


Manufacturer Information:
12704114-1119200US ARMY ARDEC RDECOM
2-01002697PARKER-HANNIFIN CORP
B0612 2-01002697PARKER-HANNIFIN CORP


Techincal Specification:
CENTER HOLE DIAMETER0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
CROSS SECTION OUTSIDE DIAMETER0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEO-RING
MATERIALRUBBER OVERALL
PERIPHERAL DIAMETER0.368 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
SPECIAL FEATURESMATERIAL: BUTYL RUBBER PARKER COMPOUND B612-70; 70 DUROMETER,PER ASTM D2000-70/SAE J200; TWO TABS LOCATED 180 DEG APART ON INSIDE AND OUTSIDE DIA,0.005 WIDE BY 0.003 LONG; USED ON GTA-1


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