National Item Identification Number
01-281-6513
012816513
5331-01-281-6513
5331012816513
National Stock Number
Item Name
O-RING
Federal Supply Class
5331
Referenced on: http://www.tpub.com/content/aviationmaintandmisc/TM-10-4930-351-14/0815120567.htm
Referenced on: http://www.tpub.com/content/aviationmaintandmisc/TM-10-4930-351-24P/TM-10-4930-351-24P0043.htm
Referenced on: http://www.tpub.com/content/aviationmaintandmisc/TM-10-4930-351-24P/TM-10-4930-351-24P0280.htmDescription
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) 5331-01-281-6513, 5331012816513 NIIN (National Identification Number) 01-281-6513, 012816513
Part Numbers (Reference Numbers)
MIL-R-25988
M25988/1-171
Required Categories
MATERIAL
CENTER HOLE DIAMETER
CROSS-SECTIONAL HEIGHT
SPEC/STD CONTROLLING DAT
Required Description
RUBBER FLUOROSILICONE CLASS FQ
7.942 INCHES MINIMUM AND
8.032 INCHES MAXIMUM;