PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14757Valve,safety Relief

Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging · NSN 4820-01-134-1990 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-134-1990 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-134-1990. Primary manufacturer part number: 14757.
Features
  • Valve,safety Relief — FSC 4820
  • Thread Direction: RIGHT-HAND FIRST END
  • Nominal Thread Size: 0.125 INCHES FIRST END IN
  • Thread Series Designator: NPT FIRST END
  • Flow Control Device: DISK
  • Maximum Operating Temp: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Valve Operation Method: AUTOMATIC
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Chloroprene Class Cr Flow Control Device construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-134-1990, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-134-1990
Primary Part Number14757
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging
StatusACTIVE
Thread DirectionRIGHT-HAND FIRST END
Nominal Thread Size0.125 INCHES FIRST END IN
Thread Series DesignatorNPT FIRST END
Flow Control DeviceDISK
Maximum Operating Temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
Valve Operation MethodAUTOMATIC
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Style DesignatorSTRAIGHT THRU
Connection StylePLAIN (PIPE) FIRST END
Adjustable Pressure Range+320.0 TO 420.0 POUNDS PER SQUARE INCH LBS
MaterialRUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE
MaterialCOPPER ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2915-00-037-791714757 INTERCHANGEABLE
Standpipe,small
Triumph Engine Control Systems Llc
2915-00-170-9165 INTERCHANGEABLE
Stop,special
5136-00-199-671454246 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
2520-00-740-91042-4-583 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Corp Spicer Transmission Div
5330-01-069-054114757 INTERCHANGEABLE
Gasket
Aerosonic Llc
1095-01-239-922014757 INTERCHANGEABLE
Holster,pistol
Bianchi International Dba Bae Systems Products Group
6220-01-255-6934NW14757 INTERCHANGEABLE
Stop Light-Taillight,vehicular
Tld Wollard Llc
4820-01-282-865114757 INTERCHANGEABLE
Diaphragm,valve,flat
Elkay Mfg Co Water Cooler Div
5120-01-533-6319105949 INTERCHANGEABLE
Wrench,torque
Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion
Cross-Reference Index
Part NumberManufacturer
14757 Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging (USA)
105949 Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging (USA)
Related Parts
2915-00-037-7917INTERCHANGEABLE
STANDPIPE,SMALL
14757
2915-00-170-9165INTERCHANGEABLE
STOP,SPECIAL
5136-00-199-6714INTERCHANGEABLE
TAP,THREAD CUTTING
54246
2520-00-740-9104INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
2-4-583
5330-01-069-0541INTERCHANGEABLE
GASKET
14757
1095-01-239-9220INTERCHANGEABLE
HOLSTER,PISTOL
14757
6220-01-255-6934INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
NW14757
4820-01-282-8651INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
14757
5120-01-533-6319INTERCHANGEABLE
WRENCH,TORQUE
105949

Frequently Asked Questions

What is NSN 4820-01-134-1990?

NSN 4820-01-134-1990 is a Valve,safety Relief, manufactured by Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-134-1990?

NSN 4820-01-134-1990 has 2 cross-referenced part numbers: 14757 (Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging), 105949 (Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging).

What NSN replaces 4820-01-134-1990?

There are 9 known substitutes for 4820-01-134-1990: 2915-00-037-7917, 2915-00-170-9165, 5136-00-199-6714 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14757?

Key specifications for 14757: Thread Direction: RIGHT-HAND FIRST END; Nominal Thread Size: 0.125 INCHES FIRST END IN; Thread Series Designator: NPT FIRST END; Flow Control Device: DISK. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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