NSN 4820-01-641-0639 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-641-0639. Manufacturer of record part number: 8474X4-010.
Also searched as4820-01-641-0639 ·
4820016410639 ·
NIIN 016410639 ·
01-641-0639 ·
FSC 4820 Valves, Nonpowered · CAGE 72352 · 8474X4-010
Manufacturer of record: Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Identification
NSN: 4820-01-641-0639
NIIN: 016410639
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8474X4-010
Manufacturer: Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-641-0639, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris. Government technical data includes 1 specification, 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.
Technical Specifications
Parameter
Value
NSN
4820-01-641-0639
Primary Part Number
8474X4-010
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (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 4820-01-641-0639?
NSN 4820-01-641-0639 is a Disk,valve, manufactured by Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-641-0639?
NSN 4820-01-641-0639 has 1 manufacturer part number on file: 8474X4-010 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris).
What are the specifications of 8474X4-010?
Key specifications for 8474X4-010: End Item Identification: 4820-01-562-0108 VALVE,SAFETY RELIEF P/N 470352; Material: STEEL COMP 316. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-641-0639 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.