National Stock Number (NSN) 5220-00-317-2503 (5220003172503) Parts List

Item Name	Gage Ring Plain
Federal Supply Group (FSG)	Measuring Tools
Federal Supply Class (FSC)	5220 Inspection Gages and Precision Layout Tools
National Item Identification Number (NIIN)	00-317-2503 (003172503)
NCB Code	USA (00)
Manufacturer	Eca Etablissement Central Des, Koninklyke Landmacht Dm, Fn Herstal Sa, Army United States Department Of The, Manroy Engineering Ltd, Inspektorat Wsparcia Sil Zbrojnych

Part Number	Manufacturer	Item Name	Cage Code	RFQ
727-4730	eca etablissement central des	gage ring plain	a00am	RFQ
5220003172503	eca etablissement central des	gage ring plain	a00am	RFQ
22120	koninklyke landmacht dm	gage ring plain	h0099	RFQ
3662006730	fn herstal sa	gage ring plain	b0897	RFQ
7274730	army united states department of the	gage ring plain	19204	RFQ
A10808	manroy engineering ltd	gage ring plain	u4574	RFQ
5220PL0913596	inspektorat wsparcia sil zbrojnych	gage ring plain	9009h	RFQ

MRC	Criteria	Characteristic
APGF	DESIGN TYPE	SINGLE
BRXZ	GAGE TYPE	NOT GO
BSFN	GAGING SURFACE INSIDE DIAMETER	0.5080 INCHES
BSFP	GAGING SURFACE INSIDE DIAMETER TOLERANCE	-0.000100 TO 0.000100 INCHES
FEAT	SPECIAL FEATURES	TOOL STEEL; HARDENED TO ROCKWELL C63-C66; HOLE SURFACE ROUGHNESS IS 8.0MICROINCHES