Database of Seat Valve Under NSN (4820009757128) 4820-00-975-7128 Parts

Item Name	Seat Valve
Federal Supply Group (FSG)	Valves
Federal Supply Class (FSC)	4820 Valves Nonpowered
National Item Identification Number (NIIN)	00-975-7128 (009757128)
NCB Code	USA (00)
Manufacturer	Woodward Hrt Inc, Marine Diesel Inc

Part Number	Manufacturer	Item Name	RFQ
42576	woodward hrt inc	seat valve	RFQ
975-7128	marine diesel inc	seat valve	RFQ

MRC	Criteria	Characteristic
ABKK	FLANGE DIAMETER	0.434 INCHES MINIMUM AND 0.436 INCHES MAXIMUM
ABKW	OVERALL HEIGHT	0.250 INCHES NOMINAL
ADAR	BODY OUTSIDE DIAMETER	0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
AJRF	FLANGE SEAT TO DISK END HEIGHT	0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM
AJRM	UNDER FLANGE HEIGHT	0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM
AJSG	SEAT ANGLE IN DEG	90.000 NOMINAL
CQFM	HARDNESS RATING	58.0 ROCKWELL C MINIMUM OVERALL AND 60.0 ROCKWELL C MAXIMUM OVERALL
CQKM	SEATING SURFACE SHAPE	ANGULAR
CQKW	BODY STEPPED INSIDE DIAMETER	0.124 INCHES MINIMUM FIRST STEP AND 0.126 INCHES MAXIMUM FIRST STEP
CQKW	BODY STEPPED INSIDE DIAMETER	0.250 INCHES NOMINAL SECOND STEP
MATT	MATERIAL	STEEL CORROSION RESISTING OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763,CLASS 440C FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SFTT	SURFACE TREATMENT	PASSIVATE OVERALL
STYL	STYLE DESIGNATOR	PLAIN