Quote for 520A-6D L-25 Circor Aerospace Inc Part with NSN 4820-01-358-1992

Part Number:  520A-6D L-25
Alternate P/N:  520A6DL25
Manufacturer:  circor aerospace inc
NIIN:  13581992
Item Name :  valve safety relief
CAGE Code:  91816
INC Code:  05488
Country:  USA
NCB Code:  01
FSG:  48 Valves
Last Updated:  03-16-2026

Are you looking quote for part 520A-6D L-25? The Circor Aerospace Inc-manufactured component (CAGE Code: 91816) is documented under NSN 4820-01-358-1992 as Valve Safety Relief. For the fastest quote, please complete our RFQ form with details about 520A-6D L-25. We guarantee a response within 15 minutes.

ASAP Components provides the verified 520A-6D L-25, classified under INC 05488, FSG 48 Valves, FSC 4820 Valves Nonpowered, NIIN 01-358-1992, and NCB 01. Submit your requirements today to receive immediate pricing and availability information.

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NSN Information for Part Number 520A-6D L-25 with NSN 4820-01-358-1992, 4820013581992

NSNFSCNIINCLSHazmatDEMILCancelled NSN
4820-01-358-1992

Item PartTypeName:

VALVE,SAFETY RELIEF

48200135819920N
CIICHCCESDPMICCriticalityENAC
U A
Part NumberISCRNVCRNCCHCCMSDSSADC
520A-6D(L)-25523

Characteristics Data of NSN 4820-01-358-1992, 4820013581992

MRCCriteriaCharacteristic
AAJDTHREAD CLASS3A ALL ENDS
AQLRVALVE OPERATION METHODAUTOMATIC
CQJXNOMINAL THREAD SIZE0.562 INCHES ALL ENDS
MATTMATERIALALUMINUM ALLOY BODY
ADQUFLOW CONTROL DEVICEDISK
AHNCCONNECTION STYLEPLAIN (PIPE) ALL ENDS
AWLSCONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CSDCOPENING PRESSURE SETTING25.0 POUNDS PER SQUARE INCH
THSDTHREAD SERIES DESIGNATORUNJF ALL ENDS
AAJFTHREAD DIRECTIONRIGHT-HAND ALL ENDS
STYLSTYLE DESIGNATORSTRAIGHT THRU
ADSUDISK LOADING METHODSPRING

Schedule B & Trade

End Use : 21180 Industrial machines, other
Schedule B : 8481400000 (NAICS 332911) Safety or relief valves
SITC : 74740 Safety or relief valves

Identification

CRITL The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
PMIC A - Item does not contain precious metal.

NSN Management Codes

AAC Z
Classification Control U
MGMT_CTL 9b-----
Quantity per pack 1
Repariability
Shelf Life N/A
SOS Sms
Unit of Measure Ea

Freight Information

ACC: V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
ADC: A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL: P - 77.5
NMFC: 127220 - Pressure reg/red/relief valves noi
SHC: 9 - Other or no special handling required (sh)
TCC: Z - No special type of cargo code applicable
WCC: 594 - Pumps and parts, (machinery and parts),(less than 35 feet)

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