NSN 5310-01-171-3421, (5310011713421) Parts Inventory

Item Name	Washer Flat
Federal Supply Group (FSG)	Hardware and Abrasives
Federal Supply Class (FSC)	5310 Nuts and Washers
National Item Identification Number (NIIN)	01-171-3421 (011713421)
NCB Code	USA (01)
Manufacturer	B E Aerospace Consumables Management, British Standards Institution, Eaton Aerospace Ltd

Part Number	Manufacturer	Item Name	Cage Code	RFQ
SP.11G	b e aerospace consumables management	washer flat	k4975	RFQ
SP.11G	british standards institution	washer flat	k7766	RFQ
991-4-00045-005	eaton aerospace ltd	washer flat	k2523	RFQ

MRC	Criteria	Characteristic
AAGR	CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
AAUB	HOLE DIAMETER	0.328 INCHES MINIMUM AND 0.333 INCHES MAXIMUM
ABMW	PERIPHERAL SHAPE STYLE	ROUND
ABMX	CENTER HOLE SHAPE STYLE	ROUND
ABNM	THICKNESS	0.018 INCHES NOMINAL
ADAV	OVERALL DIAMETER	0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
MATT	MATERIAL	STEEL CORROSION RESISTING OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	BS 1449 S.521 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL