National Item Identification Number

01-310-4604
013104604
5331-01-310-4604
5331013104604

National Stock Number

Item Name

O-RING

Federal Supply Class

5331

Description

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see PACKING,PREFORMED. For noncircular items with a round cross-section, see SEAL,NONMETALLIC ROUND SECTION and RUBBER,ROUND SECTION.

Commercial and Government Entity Code (Supplier Data)

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81343

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NSN (National Stock Number) 5331-01-310-4604, 5331013104604 NIIN (National Identification Number) 01-310-4604, 013104604

Part Numbers (Reference Numbers)

AS3581-174
MIL-R-25988
M25988/1-174

Required Categories

MATERIAL
CENTER HOLE DIAMETER
CROSS-SECTIONAL HEIGHT

Required Description

RUBBER FLUOROSILICONE CLASS FQ
8.687 INCHES MINIMUM AND
8.787 INCHES MAXIMUM;