PartsTable TECHNICAL DATA SHEET
NSN 4820-01-194-6923Government record, cited

Stem, Fluid Valve4820-01-194-6923

NSN 4820-01-194-6923 · NIIN 011946923
FSC 4820 — Valves, Nonpowered · FSG 48 — Valves
Government record, cited
Also searched as  4820-01-194-6923 · 4820011946923 · NIIN 011946923 · 01-194-6923 · FSC 4820 Valves, Nonpowered · 2641-809-41 ITEM 21 · 2641-809-41 · 2641-809-41ITEM
Nearby stock numbers  ·
Features
  • Stem,fluid Valve — FSC 4820
  • Largest Outside Diameter: 0.698 INCHES NOMINAL IN
  • Stem Actuating End Type: SLOTTED
  • Material Document and Classification: MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: COPPER ALLOY
Identification
  • NSN: 4820-01-194-6923
  • NIIN: 011946923
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-194-6923, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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
NSN4820-01-194-6923
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
StatusACTIVE
Largest Outside Diameter0.698 INCHES NOMINAL IN
Stem Actuating End TypeSLOTTED
Material Document and ClassificationMIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialCOPPER ALLOY
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.
4820-01-197-89592641-809-41PC2X2640-801X02PC3 POSSIBLE MATCH
PARTS KIT,BALL VALVE
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
2641-809-41 ITEM 21 3/2 Design control — primary reference
U.S. Government activity
2641-809-41 D/9 Drawing number reference only
U.S. Government activity
2641-809-41ITEM C/1 Advisory reference — outside the item-of-supply concept
U.S. Government activity
Related Parts
4820-01-197-8959POSSIBLE MATCH
PARTS KIT,BALL VALVE
2641-809-41PC2X2640-801X02PC3

Frequently Asked Questions

What is NSN 4820-01-194-6923?

NSN 4820-01-194-6923 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-194-6923?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-197-8959. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-194-6923?

Key specifications for 4820-01-194-6923: Largest Outside Diameter: 0.698 INCHES NOMINAL IN; Stem Actuating End Type: SLOTTED; Material Document and Classification: MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 4.594 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-194-6923 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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