Part identity

A51H9035-1

Valve Safety Relief

Adelphi Mfg Co

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
A51H9035-1
Item name
Valve Safety Relief
Manufacturer code
00500
Manufacturer
Adelphi Mfg Co

Certifications & documentation

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

Manufacturer

Adelphi Mfg Co

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

View manufacturer profile →

NSN Information for Part Number A51H9035-1 with NSN 4820-00-311-7817, 4820003117817

NSNFSCNIINCLSHazmatDEMILCancelled NSN
4820003117817

Item Description:

Valve Safety Relief

48200031178170N
CIICHCCESDPMICCriticalityENAC
U A0
Part NumberISCRNVCRNCCHCCMSDSSADC
A51h9035-1221

Characteristics Data of NSN 4820-00-311-7817, 4820003117817

MRCCriteriaCharacteristic
AAJDTHREAD CLASS3B 1ST END
AAJFTHREAD DIRECTIONRIGHT-HAND 1ST END
ADQUFLOW CONTROL DEVICEPOPPET
ADSUDISK LOADING METHODSPRING
ADSYVALVE DISCHARGE FLOW RATE1.2 GALLONS PER MINUTE
AEHZMAXIMUM OPERATING TEMP275.0 DEG FAHRENHEIT SINGLE RESPONSE
AHNCCONNECTION STYLEGASKET SEAL(BOSS) 1ST END
AQLRVALVE OPERATION METHODAUTOMATIC
AWLSCONNECTION TYPETHREADED INTERNAL BOSS 1ST END
CMLPTHREAD QUANTITY PER INCH20 1ST END
CQGMMAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CQJXNOMINAL THREAD SIZE0.437 INCHES 1ST END
CQRBSEAT ANGLE37.0 DEGREES 1ST END
CSDCOPENING PRESSURE SETTING500.0 POUNDS PER SQUARE INCH
CWFDNOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
MATTMATERIALALUMINUM ALLOY 2024 BODY
MATTMATERIALALUMINUM ALLOY 2024 SEAT
SFTTSURFACE TREATMENTANODIZE
STDCSURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
STYLSTYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
THSDTHREAD SERIES DESIGNATORUNJF 1ST 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
Share feedback

Proud supporter of the Intrepid Fallen Heroes Fund, advancing mental-health treatment and research for U.S. service members and veterans.

USA fulfillment. Every order shipped from our Anaheim, California operations. Counterfeit-mitigation aligned to SAE AS5553 / AS6081.

Official logos
  • NBA
  • ASA
  • AS9120:2025
Payment acceptedVisaMastercardDiscoverAmerican Express

© 2026 Integrated Electromechanicals. All rights reserved.

Owned and operated as a wholly-owned subsidiary of ASAP Semiconductor LLC. Export-controlled items handled in accordance with ITAR and EAR regulations.