National Stock Number (NSN) 5331-01-441-6980 (5331014416980) Parts List

Item Name	O Ring
Federal Supply Group (FSG)	Hardware and Abrasives
Federal Supply Class (FSC)	5331 O Ring
National Item Identification Number (NIIN)	01-441-6980 (014416980)
NCB Code	USA (01)
Manufacturer	National Aerospace Standards Com, Military Specifications

Part Number	Manufacturer	Item Name	Cage Code	RFQ
MIL-R-25988	national aerospace standards com	o ring	80205	RFQ
M25988-4-230	national aerospace standards com	o ring	80205	RFQ
MIL-DTL-25988/4	military specifications	o ring	81349	RFQ
M25988/4-230	military specifications	o ring	81349	RFQ
MIL-R-25988	military specifications	o ring	81349	RFQ

MRC	Criteria	Characteristic
ADVN	CROSS-SECTIONAL HEIGHT	0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
ADYT	CENTER HOLE DIAMETER	2.464 INCHES MINIMUM AND 2.504 INCHES MAXIMUM
CQFM	HARDNESS RATING	80.0 SHORE DUROMETER A NOMINAL
MATT	MATERIAL	RUBBER FLUOROSILICONE CLASS FQ
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-25988 TYPE 1, CLASS 1, GRADE 80 MIL SPEC SINGLE MATERIAL RESPONSE