PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7025392Valve,safety Relief

Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force · NSN 4820-00-152-1257 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-152-1257 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-152-1257. Primary manufacturer part number: 7025392.
Features
  • Valve,safety Relief — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-152-1257, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,safety Relief
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersAir Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (CAGE 98748); Transdigm Inc Div Aero Fluid Products (CAGE 96124); Bahr Machine Company Inc Dba Bahr Machine Co (CAGE 75201); Westfield Hydraulics Inc Dba Westfield Hydraulics Inc (CAGE 53730)
Technical Specifications
ParameterValue
NSN4820-00-152-1257
Primary Part Number7025392
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAir Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5355-00-139-821594-001 INTERCHANGEABLE
Knob
Conti Industries Inc
5325-00-171-5950 INTERCHANGEABLE
Grommet,nonmetallic
5950-00-283-7375D73A INTERCHANGEABLE
Transformer,power
B G Laboratories Inc.
5935-00-967-5482522-6513 INTERCHANGEABLE
Connector,receptacle,electrical
Hoffman Engineering, Llc Dba Hoffman Engineering Llc
4730-01-039-1222H859-3-4SS INTERCHANGEABLE
Adapter,straight,tube to Boss
Admiral Valve Llc Dba Cpv Manufacturing
5815-01-083-9892 INTERCHANGEABLE
Teletypewriter Subassembly
6510-01-084-03234002-00 INTERCHANGEABLE
Adhesive Liquid,surgical
Smith & Nephew Inc. Dba Smith and Nephew Wound and Mgt Div Wound Management
5945-01-126-4658AE104-019-99 INTERCHANGEABLE
Relay,electromagnetic
Dare Electronics, Inc.
5995-01-155-8391603-961-001-603 INTERCHANGEABLE
Cord Assembly,electrical
Roanwell, Llc
6750-01-243-929011 5128 INTERCHANGEABLE
Replenisher,developer,photograph
Molecular Gps Enterprises Dba Clayton Chemical
Cross-Reference Index
Part NumberManufacturer
7025392 PRIMARY Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
400200-1 Transdigm Inc Div Aero Fluid Products (USA)
9400-1 Bahr Machine Company Inc Dba Bahr Machine Co (USA)
400200 Transdigm Inc Div Aero Fluid Products (USA)
490110 Westfield Hydraulics Inc Dba Westfield Hydraulics Inc (USA)
Related Parts
5355-00-139-8215INTERCHANGEABLE
KNOB
94-001
5325-00-171-5950INTERCHANGEABLE
GROMMET,NONMETALLIC
5950-00-283-7375INTERCHANGEABLE
TRANSFORMER,POWER
D73A
5935-00-967-5482INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
522-6513
4730-01-039-1222INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
H859-3-4SS
5815-01-083-9892INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
6510-01-084-0323INTERCHANGEABLE
ADHESIVE LIQUID,SURGICAL
4002-00
5945-01-126-4658INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
AE104-019-99
5995-01-155-8391INTERCHANGEABLE
CORD ASSEMBLY,ELECTRICAL
603-961-001-603
6750-01-243-9290INTERCHANGEABLE
REPLENISHER,DEVELOPER,PHOTOGRAPH
11 5128
4730-01-301-6385INTERCHANGEABLE
ADAPTER,ELBOW,PIPE
4002-001
4820-01-310-4257INTERCHANGEABLE
VALVE,SAFETY RELIEF
PG-9002 ITEM 127

Frequently Asked Questions

What is NSN 4820-00-152-1257?

NSN 4820-00-152-1257 is a Valve,safety Relief, manufactured by Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-152-1257?

NSN 4820-00-152-1257 has 5 cross-referenced part numbers: 7025392 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 400200-1 (Transdigm Inc Div Aero Fluid Products), 9400-1 (Bahr Machine Company Inc Dba Bahr Machine Co), 400200 (Transdigm Inc Div Aero Fluid Products), 490110 (Westfield Hydraulics Inc Dba Westfield Hydraulics Inc).

What NSN replaces 4820-00-152-1257?

There are 12 known substitutes for 4820-00-152-1257: 5355-00-139-8215, 5325-00-171-5950, 5950-00-283-7375 and 9 more. Verify interchangeability with system specifications before substitution.

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