Part identity

571973

Valve Safety Relief

Stewart Industries Inc

Avg quote: 14 minFulfilled from Anaheim, CAAS9120:2025 · ISO 9001 · FAA AC 00-56BC of C, lot & date code with every line

Part description

Valve Safety Relief

ASAP supports this specific part for replacement, spare-pool replenishment, retrofit, and urgent maintenance requirements. Quote requests can include alternate MPN, condition preferences, certification needs, and plant-specific receiving instructions so procurement gets a clear sourcing response before purchase.

Specifications

MPN
571973
Item name
Valve Safety Relief
Manufacturer code
03113
Manufacturer
Stewart Industries Inc

Certifications & documentation

  • UL Recognized
  • CE
  • C of C available on request
SI

Manufacturer

Stewart Industries Inc

Authorized-distributor or qualified-aftermarket source. Parts shipped from this manufacturer include full traceability paperwork and counterfeit-mitigation per SAE AS6081.

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NSN Information for Part Number 571973 with NSN 4820-00-040-3134, 4820000403134

NSNFSCNIINCLSHazmatDEMILCancelled NSN
4820000403134

Item Description:

Valve Safety Relief

48200004031340N
CIICHCCESDPMICCriticalityENAC
U U
Part NumberISCRNVCRNCCHCCMSDSSADC
571973295

Characteristics Data of NSN 4820-00-040-3134, 4820000403134

MRCCriteriaCharacteristic
AAJDTHREAD CLASS2A 4TH END
AAJDTHREAD CLASS2B 1ST END
AAJDTHREAD CLASS2B 2ND END
AAJDTHREAD CLASS2B 3RD END
AAJFTHREAD DIRECTIONRIGHT-HAND 1ST END
AAJFTHREAD DIRECTIONRIGHT-HAND 2ND END
AAJFTHREAD DIRECTIONRIGHT-HAND 3RD END
AAJFTHREAD DIRECTIONRIGHT-HAND 4TH END
ADQUFLOW CONTROL DEVICEPOPPET
ADSUDISK LOADING METHODSPRING
ADZHRENEWABLE SEAT RING TYPEBONDED
AHNCCONNECTION STYLEDOUBLE THREADED SECTION BOSS FITTING GASKET WITH LOCKNUT SEALING (BOSS) 4TH END
AHNCCONNECTION STYLEFLARE(TUBE) 1ST END
AHNCCONNECTION STYLEGASKET SEAL(BOSS) 2ND END
AQLRVALVE OPERATION METHODAUTOMATIC
AWLSCONNECTION TYPETHREADED EXTERNAL BOSS 4TH END
AWLSCONNECTION TYPETHREADED INTERNAL BOSS 2ND END
AWLSCONNECTION TYPETHREADED INTERNAL BOSS 3RD END
AWLSCONNECTION TYPETHREADED INTERNAL TUBE 1ST END
AZGMMOUNTING FACILITYBRACKET
CQJXNOMINAL THREAD SIZE0.437 INCHES 2ND END
CQJXNOMINAL THREAD SIZE0.437 INCHES 3RD END
CQJXNOMINAL THREAD SIZE0.750 INCHES 1ST END
CQJXNOMINAL THREAD SIZE0.875 INCHES 4TH END
CWFDNOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES 1ST END
MATTMATERIALALUMINUM BODY
MATTMATERIALSTEEL FLOW CONTROL DEVICE
MATTMATERIALSTEEL SEAT
SFTTSURFACE TREATMENTANODIZE
STYLSTYLE DESIGNATORANGLE
THSDTHREAD SERIES DESIGNATORUNF 1ST END
THSDTHREAD SERIES DESIGNATORUNF 2ND END
THSDTHREAD SERIES DESIGNATORUNF 3RD END
THSDTHREAD SERIES DESIGNATORUNF 4TH END
Integrated Electromechanicals

Industrial automation, control, and electromechanical components. Over 2 billion parts across 5,100+ manufacturers. Quotes back in 15 minutes, 24/7 — fulfilled from Anaheim, California.

Certifications

  • AS9120:2025
  • ISO 9001:2015
  • FAA AC 00-56B
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USA fulfillment. Every order shipped from our Anaheim, California operations. Counterfeit-mitigation aligned to SAE AS5553 / AS6081.

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