PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7809221Valve,safety Relief

General Motors Llc Dba General Motors Llc · NSN 4820-01-039-3769 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-039-3769 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-039-3769. Primary manufacturer part number: 7809221.
Features
  • Valve,safety Relief — FSC 4820
  • Flow Control Device: POPPET
  • Media for Which Designed: OIL, HYDRAULIC SINGLE RESPONSE
  • Adjustable Pressure Range: +1350.0 TO 1450.0 POUNDS PER SQUARE INCH LBS
  • Operating Pressure: 1450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Valve Operation Method: AUTOMATIC
  • Disk Loading Method: SPRING
  • Style Designator: ANGLE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-039-3769, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-039-3769
Primary Part Number7809221
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors Llc
StatusACTIVE
Flow Control DevicePOPPET
Media for Which DesignedOIL, HYDRAULIC SINGLE RESPONSE
Adjustable Pressure Range+1350.0 TO 1450.0 POUNDS PER SQUARE INCH LBS
Operating Pressure1450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation MethodAUTOMATIC
Disk Loading MethodSPRING
Style DesignatorANGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-083-79935740433 INTERCHANGEABLE
Cartridge,relief Valve
Am General Llc
Cross-Reference Index
Part NumberManufacturer
7809232 Linear Motion Llc Div Ugm (USA)
7809232 General Motors Llc Dba General Motors Llc (USA)
7809210 General Motors Corp Saginaw Div (USA)
5741823 Am General Llc (USA)
7809232 General Motors Corp Saginaw Div (USA)
7809221 PRIMARY General Motors Llc Dba General Motors Llc (USA)
7809232 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
7809232 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
Related Parts
4820-01-083-7993INTERCHANGEABLE
CARTRIDGE,RELIEF VALVE
5740433

Frequently Asked Questions

What is NSN 4820-01-039-3769?

NSN 4820-01-039-3769 is a Valve,safety Relief, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-039-3769?

NSN 4820-01-039-3769 has 8 cross-referenced part numbers: 7809232 (Linear Motion Llc Div Ugm), 7809232 (General Motors Llc Dba General Motors Llc), 7809210 (General Motors Corp Saginaw Div), 5741823 (Am General Llc), 7809232 (General Motors Corp Saginaw Div) and 3 more.

What NSN replaces 4820-01-039-3769?

There is 1 known substitute for 4820-01-039-3769: 4820-01-083-7993. Verify interchangeability with system specifications before substitution.

What are the specifications of 7809221?

Key specifications for 7809221: Flow Control Device: POPPET; Media for Which Designed: OIL, HYDRAULIC SINGLE RESPONSE; Adjustable Pressure Range: +1350.0 TO 1450.0 POUNDS PER SQUARE INCH LBS; Operating Pressure: 1450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 7 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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