Database of Valve Safety Relief Under NSN (4820000688991) 4820-00-068-8991 Parts

Item Name Valve Safety Relief
Federal Supply Group (FSG) Valves
Federal Supply Class (FSC) 4820 Valves Nonpowered
National Item Identification Number (NIIN) 00-068-8991 (000688991)
NCB Code USA (00)
Manufacturer Northrop Grumman Systems Corporation, Eaton Corporation, Eaton Aerospace Ltd
Part Number Manufacturer Item Name RFQ
128SCH107-1 northrop grumman systems corporation valve safety relief RFQ
20980 eaton corporation valve safety relief RFQ
MC1665 eaton aerospace ltd valve safety relief RFQ

Technical Characteristics of NSN 4820000688991

MRCCriteriaCharacteristic
AAJDTHREAD CLASS3B 1ST END
AAJFTHREAD DIRECTIONRIGHT-HAND 1ST END
ADQUFLOW CONTROL DEVICEPOPPET
ADSRBONNET TYPEPACKING RETAINING
ADSUDISK LOADING METHODSPRING
ADSYVALVE DISCHARGE FLOW RATE4.0 CUBIC FEET PER MINUTE
AEHZMAXIMUM OPERATING TEMP-65.0 DEG FAHRENHEIT 1ST RESPONSE
AEHZMAXIMUM OPERATING TEMP275.0 DEG FAHRENHEIT 2ND RESPONSE
AHNCCONNECTION STYLEGASKET SEAL(BOSS) 1ST END
AQLRVALVE OPERATION METHODAUTOMATIC
AWLSCONNECTION TYPETHREADED INTERNAL BOSS 1ST END
CBBLFEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
CQCYADJUSTABLE PRESSURE RANGE49.0 TO 51.0 POUNDS PER SQUARE INCH
CQGMMAXIMUM OPERATING PRESSURE50.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CQJXNOMINAL THREAD SIZE0.562 INCHES 1ST END
MATTMATERIALALUMINUM ALLOY OVERALL
MEDAMEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID,PHOSPHATE-ESTER BASE SINGLE RESPONSE
SFTTSURFACE TREATMENTANODIZE
STYLSTYLE DESIGNATORSTRAIGHT THRU
THSDTHREAD SERIES DESIGNATORUNJF 1ST END

Relevant Components for NSN - 4820-00-068-8991, 4820000688991
4820-01-355-0373 (4820013550373) 4820-01-596-5537 (4820015965537) 4820-01-428-4292 (4820014284292) 4820-01-572-3577 (4820015723577)
4820-01-535-9663 (4820015359663) 4820-01-278-9880 (4820012789880) 4820-01-412-2051 (4820014122051) 4820-12-365-1402 (4820123651402)
4810-12-380-1387 (4810123801387) 4820-01-492-3226 (4820014923226) 4820-01-299-0262 (4820012990262) 4820-01-263-0040 (4820012630040)

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