1560-01-449-9886 COVER,ACCESS,AIRCRAFT Index 5985-01-449-9888 WAVEGUIDE ASSEMBLY

National Stock Number:
5330-01-449-9887

Federal Supply Class:
5330

National Item Identification Number:
014499887

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:
ST7M349-1550744KIRKHILL, INC.
ST7M349-1575345KIRKHILL, INC.
ST7M349-1576301THE BOEING COMPANY


Techincal Specification:
CENTER HOLE DIAMETER1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONFEAT AND AGAV
CROSS-SECTIONAL SHAPE STYLESPECIAL
CROSS-SECTIONAL HEIGHT0.705 INCHES MINIMUM AND 0.725 INCHES MAXIMUM
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765,CL 3,GR 50 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SILICONE CLASS Q OVERALL
PERIPHERAL DIAMETER2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM
SPECIAL FEATURESGROMMET STYLE ATTACHMENT METHOD,WIDTH 0.100
TEMP RATING-80.0 FAHRENHEIT AND 450.0 FAHRENHEIT


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