PartsTable TECHNICAL DATA SHEET
NSN 4820-01-225-6946Government record, cited

Stem, Fluid Valve4820-01-225-6946

NSN 4820-01-225-6946 · NIIN 012256946
FSC 4820 — Valves, Nonpowered · FSG 48 — Valves
Government record, cited
Also searched as  4820-01-225-6946 · 4820012256946 · NIIN 012256946 · 01-225-6946 · FSC 4820 Valves, Nonpowered · 516-2048218 PIECE 9 · 71791-20X2 · 71791-20X2 PIECE 9 · 516-2048218
Nearby stock numbers  ·
Features
  • Stem,fluid Valve — FSC 4820
  • Stem Actuating End Type: ROUNDED
  • Material: STEEL COMP 416
Identification
  • NSN: 4820-01-225-6946
  • NIIN: 012256946
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-225-6946, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-225-6946
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
StatusACTIVE
Stem Actuating End TypeROUNDED
MaterialSTEEL COMP 416
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-225-694971791-20X2 PIECE 4 POSSIBLE MATCH
BALL,VALVE,PORTED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
516-2048218 PIECE 9 5/2 Secondary reference
U.S. Government activity
71791-20X2 D/9 Drawing number reference only
U.S. Government activity
71791-20X2 PIECE 9 3/2 Design control — primary reference
U.S. Government activity
516-2048218 D/9 Drawing number reference only
U.S. Government activity
Related Parts
4820-01-225-6949POSSIBLE MATCH
BALL,VALVE,PORTED
71791-20X2 PIECE 4

Frequently Asked Questions

What is NSN 4820-01-225-6946?

NSN 4820-01-225-6946 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-225-6946?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-225-6949. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-225-6946?

Key specifications for 4820-01-225-6946: Stem Actuating End Type: ROUNDED; Overall Length: 3.250 INCHES NOMINAL IN; Material: STEEL COMP 416. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-225-6946 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.
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