National Item Identification Number
00-565-4978
005654978
5331-00-565-4978
5331005654978
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)
NSN (National Stock Number) 5331-00-565-4978, 5331005654978 NIIN (National Identification Number) 00-565-4978, 005654978
Part Numbers (Reference Numbers)
MIL-R-25988 TY1 CL1 GR 40
MILR25988
M25988/1-170
Required Categories
MATERIAL
CENTER HOLE DIAMETER
CROSS-SECTIONAL HEIGHT
SPEC/STD CONTROLLING DAT
Required Description
RUBBER FLUOROSILICONE CLASS FQ
7.692 INCHES MINIMUM AND
7.782 INCHES MAXIMUM;