NSN 4820-01-211-7231 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-211-7231. Manufacturer of record part number: 20525.
Also searched as4820-01-211-7231 ·
4820012117231 ·
NIIN 012117231 ·
01-211-7231 ·
FSC 4820 Valves, Nonpowered · CAGE 26505 · 20525
The Disk,valve, cataloged under National Stock Number 4820-01-211-7231, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-211-7231
Primary Part Number
20525
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Grove Valve Operations
Status
ACTIVE
Material
STEEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6840-01-451-604720525POSSIBLE MATCH
DISINFECTANT,UTILITY
Possible match (shared part number)Janitors Supply Co Inc Div Erie Corporate Division
5330-01-646-949620525POSSIBLE MATCH
GASKET AND PREFORMED PACKING SET
Possible match (shared part number)Berg Manufacturing, Inc.
NSN 4820-01-211-7231 is a Disk,valve, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-211-7231?
NSN 4820-01-211-7231 has 1 manufacturer part number on file: 20525 (Grove Valve Operations).
What NSN replaces 4820-01-211-7231?
2 possible matches (shared part number, not a government interchangeability claim): 6840-01-451-6047, 5330-01-646-9496. Verify interchangeability with system specifications before substitution.
What are the specifications of 20525?
Key specifications for 20525: Material: STEEL. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-211-7231 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.