NSN 4820-01-312-3992 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-312-3992. Manufacturer of record part number: 6350-925.
Bolt Hole Nominal Diameter: 1.000 INCHES ALL ENDS IN
Operating Pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter: 9.500 INCHES ALL ENDS IN
Identification
NSN: 4820-01-312-3992
NIIN: 013123992
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 6350-925
Manufacturer: Greno Industries, Inc. Dba Greno Industries Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-312-3992, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Greno Industries, Inc. Dba Greno Industries Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-312-3992
Primary Part Number
6350-925
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Greno Industries, Inc. Dba Greno Industries Inc
Status
ACTIVE
Flange Shape
ROUND WITH HOLES ALL ENDS
FSC Application Data
VALVES,NONPOWERED
Connection Type
FLANGE ALL ENDS
Style Designator
"Y" ANGLE
Bolt Hole Nominal Diameter
1.000 INCHES ALL ENDS IN
Operating Pressure
600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Greno Industries, Inc. Dba Greno Industries Inc (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-312-3992?
NSN 4820-01-312-3992 is a Valve,safety Relief, manufactured by Greno Industries, Inc. Dba Greno Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-312-3992?
NSN 4820-01-312-3992 has 2 manufacturer part numbers on file: 6350-925 (Greno Industries, Inc. Dba Greno Industries Inc), 6350-9XX (Greno Industries, Inc. Dba Greno Industries Inc).
What are the specifications of 6350-925?
Key specifications for 6350-925: Flange Shape: ROUND WITH HOLES ALL ENDS; FSC Application Data: VALVES,NONPOWERED; Connection Type: FLANGE ALL ENDS; Style Designator: "Y" ANGLE. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-312-3992 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.