PartsTable TECHNICAL DATA SHEET
NSN 4820-01-477-1948Government record, cited

Stem, Fluid Valve4820-01-477-1948

NSN 4820-01-477-1948 · NIIN 014771948 · Part number V24509-14-07-MOD DET NO12
B N L Industries Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 0AZ22
Government record, cited
NSN 4820-01-477-1948 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-477-1948. Manufacturer of record part number: V24509-14-07-MOD DET NO12.
Also searched as  4820-01-477-1948 · 4820014771948 · NIIN 014771948 · 01-477-1948 · FSC 4820 Valves, Nonpowered · CAGE 0AZ22 · V24509-14-07-MOD DET NO12 · V24509-14-07-MOD-12 · V24509-14-07MOD
Nearby stock numbers  ·
Features
  • Stem,fluid Valve — FSC 4820
  • Valve Type for Which Designed: BALL
  • Stem Actuating End Type: THREADED EXTERNALLY
  • Material Document and Classification: QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE
  • Valve Size for Which Designed: 1.500 INCHES IN
  • Material: COPPER ALLOY
  • 2 manufacturer part numbers on file
  • Manufacturer of record: B N L Industries Inc
Identification
  • NSN: 4820-01-477-1948
  • NIIN: 014771948
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: V24509-14-07-MOD DET NO12
  • Manufacturer: B N L Industries Inc
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-477-1948, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is B N L Industries Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-477-1948
Primary Part NumberV24509-14-07-MOD DET NO12
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerB N L Industries Inc
StatusACTIVE
Valve Type for Which DesignedBALL
Stem Actuating End TypeTHREADED EXTERNALLY
Material Document and ClassificationQQ-N-281 FED SPEC 1ST MATERIAL RESPONSE
Valve Size for Which Designed1.500 INCHES IN
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 3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-477-3886V24509-14-07-MOD-4 POSSIBLE MATCH
BALL,VALVE,PORTED
Possible match (shared part number)B N L Industries Inc
4820-01-477-4381V24509-14-07-MOD POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)B N L Industries Inc
4820-01-477-4574V24509-14-07-MOD DET NO 6 POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)B N L Industries Inc
Cross-Reference Index
Part NumberManufacturer
V24509-14-07-MOD-12 B N L Industries Inc (USA)
V24509-14-07-MOD DET NO12 PRIMARY B N L Industries Inc (USA)
Reference documents
ReferenceMeaning
V24509-14-07MOD D/9 Drawing number reference only
B N L Industries Inc
Related Parts
4820-01-477-3886POSSIBLE MATCH
BALL,VALVE,PORTED
V24509-14-07-MOD-4
4820-01-477-4381POSSIBLE MATCH
VALVE,BALL
V24509-14-07-MOD
4820-01-477-4574POSSIBLE MATCH
SEAT,VALVE
V24509-14-07-MOD DET NO 6

Frequently Asked Questions

What is NSN 4820-01-477-1948?

NSN 4820-01-477-1948 is a Stem,fluid Valve, manufactured by B N L Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-477-1948?

NSN 4820-01-477-1948 has 2 manufacturer part numbers on file: V24509-14-07-MOD-12 (B N L Industries Inc), V24509-14-07-MOD DET NO12 (B N L Industries Inc).

What NSN replaces 4820-01-477-1948?

3 possible matches (shared part number, not a government interchangeability claim): 4820-01-477-3886, 4820-01-477-4381, 4820-01-477-4574. Verify interchangeability with system specifications before substitution.

What are the specifications of V24509-14-07-MOD DET NO12?

Key specifications for V24509-14-07-MOD DET NO12: Valve Type for Which Designed: BALL; Stem Actuating End Type: THREADED EXTERNALLY; Material Document and Classification: QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE; Valve Size for Which Designed: 1.500 INCHES IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-477-1948 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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