NSN 4820-01-230-2020 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-230-2020. Manufacturer of record part number: 5979278.
Also searched as4820-01-230-2020 ·
4820012302020 ·
NIIN 012302020 ·
01-230-2020 ·
FSC 4820 Valves, Nonpowered · CAGE 53711 · 5979278
Flange Seat to Disk End Height: 1.270 INCHES NOMINAL IN
Outside Diameter: 0.468 INCHES NOMINAL IN
Seat Angle: 60.0 DEGREES NOMINAL
Nominal Thread Size: 0.250 INCHES IN
Thread Class: 2A A
Material: PLASTIC POLYAMIDE NYLON
Identification
NSN: 4820-01-230-2020
NIIN: 012302020
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5979278
Manufacturer: Naval Sea Systems Command
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-230-2020, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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.
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Frequently Asked Questions
What is NSN 4820-01-230-2020?
NSN 4820-01-230-2020 is a Disk,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-230-2020?
NSN 4820-01-230-2020 has 1 manufacturer part number on file: 5979278 (Naval Sea Systems Command).
What are the specifications of 5979278?
Key specifications for 5979278: Shank Diameter: 0.192 INCHES NOMINAL IN; Flange Seat to Disk End Height: 1.270 INCHES NOMINAL IN; Overall Height: 1.625 INCHES NOMINAL IN; Outside Diameter: 0.468 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-230-2020 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.