5330-00-551-3943 PACKING,PREFORMED Index 5330-00-551-3945 PACKING,PREFORMED

National Stock Number:
5330-00-551-3944

Federal Supply Class:
5330

National Item Identification Number:
005513944

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:
3279549PC3580064NAVAL SHIP SYSTEMS COMMAND
4479FPC3504537ATWOOD & MORRILL CO. INC. DBA WEIR VALVES AND CONTROLS USA
AN6227-2188044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
S7-2173277HOUGHTON INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE DIAMETER1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEO-RING
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
HARDNESS RATING68.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TEMP RATING-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT


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