PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

850790Valve,safety Relief

General Motors Llc Dba General Motors · NSN 4820-00-832-8695 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-832-8695 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-832-8695. Primary manufacturer part number: 850790.
Features
  • Valve,safety Relief — FSC 4820
  • Bonnet Attachment Method: THREADED
  • Operating Pressure: 6.5 POUNDS PER SQUARE INCH (PSI) NOMINAL POWER DRIVE LBS
  • Nominal Inside Diameter Hose Accommodated: 0.312 INCHES SECOND END IN
  • Style Designator: ANGLE
  • Disk Loading Method: SPRING
  • Connection Type: UNTHREADED EXTERNAL HOSE FIRST END
  • Mounting Facility: BRACKET(S)
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-832-8695, 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. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN4820-00-832-8695
Primary Part Number850790
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors
StatusACTIVE
Bonnet Attachment MethodTHREADED
Operating Pressure6.5 POUNDS PER SQUARE INCH (PSI) NOMINAL POWER DRIVE LBS
Nominal Inside Diameter Hose Accommodated0.312 INCHES SECOND END IN
Style DesignatorANGLE
Disk Loading MethodSPRING
Connection TypeUNTHREADED EXTERNAL HOSE FIRST END
Mounting FacilityBRACKET(S)
Nominal Inside Diameter Hose Accommodated1.203 INCHES FIRST END IN
Flow Control DeviceDIAPHRAGM
Valve Operation MethodAUTOMATIC
Connection StylePLAIN (HOSE) ALL ENDS
Connection TypeUNTHREADED EXTERNAL HOSE SECOND END
Bonnet TypeINSIDE SCREW
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-190-8865 INTERCHANGEABLE
Resistor,fixed,composition
Cross-Reference Index
Part NumberManufacturer
850790 General Motors Llc Dba General Motors (USA)
850790 Euclid Inc (USA)
850790 General Motors Llc Dba General Motors Llc (USA)
Related Parts
5905-00-190-8865INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION

Frequently Asked Questions

What is NSN 4820-00-832-8695?

NSN 4820-00-832-8695 is a Valve,safety Relief, manufactured by General Motors Llc Dba General Motors, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-832-8695?

NSN 4820-00-832-8695 has 3 cross-referenced part numbers: 850790 (General Motors Llc Dba General Motors), 850790 (Euclid Inc), 850790 (General Motors Llc Dba General Motors Llc).

What NSN replaces 4820-00-832-8695?

There is 1 known substitute for 4820-00-832-8695: 5905-00-190-8865. Verify interchangeability with system specifications before substitution.

What are the specifications of 850790?

Key specifications for 850790: Bonnet Attachment Method: THREADED; Operating Pressure: 6.5 POUNDS PER SQUARE INCH (PSI) NOMINAL POWER DRIVE LBS; Nominal Inside Diameter Hose Accommodated: 0.312 INCHES SECOND END IN; Style Designator: ANGLE. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com