NSN 4820-01-462-4866 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-462-4866. Manufacturer of record part number: USH-6.0-51-02-N-0.
Material Document and Classification: ASTM-A-582 ASSN STD ALL MATERIAL RESPONSES
Material: STEEL
1 manufacturer part number on file
Manufacturer of record: Mueller Co
Identification
NSN: 4820-01-462-4866
NIIN: 014624866
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: USH-6.0-51-02-N-0
Manufacturer: Mueller Co
General Description
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-462-4866, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mueller Co. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-462-4866
Primary Part Number
USH-6.0-51-02-N-0
Item Name
Stem,fluid Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Mueller Co
Status
ACTIVE
Material Document and Classification
ASTM-A-582 ASSN STD ALL MATERIAL RESPONSES
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
NSN 4820-01-462-4866 is a Stem,fluid Valve, manufactured by Mueller Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-462-4866?
NSN 4820-01-462-4866 has 1 manufacturer part number on file: USH-6.0-51-02-N-0 (Mueller Co).
What NSN replaces 4820-01-462-4866?
8 possible matches (shared part number, not a government interchangeability claim): 4820-01-462-4881, 4820-01-462-4886, 4820-01-462-5030. Verify interchangeability with system specifications before substitution.
What are the specifications of USH-6.0-51-02-N-0?
Key specifications for USH-6.0-51-02-N-0: Material Document and Classification: ASTM-A-582 ASSN STD ALL MATERIAL RESPONSES; Special Features: USED ON BUTTERFLY VALVE P/N 6.0-51INK-3-1; End Item Identification: WATERS CLASS TAGS-45; Material: STEEL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-462-4866 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.