NSN 4820-01-646-7870 · NIIN 016467870 · Part number SV-50
General Air Products Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 6S504
Government record, cited
NSN 4820-01-646-7870 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-646-7870. Manufacturer of record part number: SV-50.
Adjustable Pressure Range: +50.0 TO 250.0 POUNDS PER SQUARE INCH LBS
Bonnet Type: INSIDE SPRING
Thread Direction: RIGHT-HAND FIRST END
Nominal Thread Size: 0.50 INCHES FIRST END IN
Maximum Operating Temp: 250.00 FAHRENHEIT SINGLE RESPONSE DEGF
Bonnet Attachment Method: INTEGRAL
Identification
NSN: 4820-01-646-7870
NIIN: 016467870
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: SV-50
Manufacturer: General Air Products Inc
General Description
The Valve,safety Relief, cataloged under National Stock Number 4820-01-646-7870, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Air Products Inc. Government technical data includes 10 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.
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 4820-01-646-7870?
NSN 4820-01-646-7870 is a Valve,safety Relief, manufactured by General Air Products Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-646-7870?
NSN 4820-01-646-7870 has 2 manufacturer part numbers on file: SV-50 (General Air Products Inc), VA303-1 (Mediquip Pty Ltd).
What are the specifications of SV-50?
Key specifications for SV-50: Style Designator: SCREW-IN CARTRIDGE; Adjustable Pressure Range: +50.0 TO 250.0 POUNDS PER SQUARE INCH LBS; Bonnet Type: INSIDE SPRING; Thread Direction: RIGHT-HAND FIRST END. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-646-7870 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.