NSN 4820-01-504-7837 · NIIN 015047837 · Part number WV121000-02 NO.13
William E Williams Valve Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79342
Government record, cited
NSN 4820-01-504-7837 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-504-7837. Manufacturer of record part number: WV121000-02 NO.13.
Material Document and Classification: AASTM-A479 GR410 ASSN STD SINGLE MATERIAL RESPONSE
Valve Size for Which Designed: 2.000 INCHES IN
Material: STEEL COMP 410
1 manufacturer part number on file
Manufacturer of record: William E Williams Valve Corp
Identification
NSN: 4820-01-504-7837
NIIN: 015047837
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: WV121000-02 NO.13
Manufacturer: William E Williams Valve Corp
General Description
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-504-7837, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-504-7837
Primary Part Number
WV121000-02 NO.13
Item Name
Stem,fluid Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
William E Williams Valve Corp
Status
ACTIVE
Valve Type for Which Designed
GATE
Stem Actuating End Type
THREADED EXTERNALLY
Material Document and Classification
AASTM-A479 GR410 ASSN STD SINGLE MATERIAL RESPONSE
Valve Size for Which Designed
2.000 INCHES IN
Material
STEEL COMP 410
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.
4820-01-504-7893WV121000-02-2 INPOSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)William E Williams Valve Corp
4810-01-519-2408WV121000-02-1.5IN PC 3POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)William E Williams Valve Corp
4810-01-519-2523WV121000-02-1.00IN PC 2POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)William E Williams Valve Corp
4810-01-519-2741WV121000-02-1.50INPOSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)William E Williams Valve Corp
4810-01-519-3139WV121000-02-1.00INPOSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)William E Williams Valve Corp
4810-01-519-4803WV121000-02-1.5IN PC 2POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)William E Williams Valve Corp
4810-01-519-5223WV121000-02-1.00IN PC 3POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)William E Williams Valve Corp
4810-01-716-21131INS60SW3316LMPPOSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)William E Williams Valve Corp
NSN 4820-01-504-7837 is a Stem,fluid Valve, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-504-7837?
NSN 4820-01-504-7837 has 1 manufacturer part number on file: WV121000-02 NO.13 (William E Williams Valve Corp).
What NSN replaces 4820-01-504-7837?
8 possible matches (shared part number, not a government interchangeability claim): 4820-01-504-7893, 4810-01-519-2408, 4810-01-519-2523. Verify interchangeability with system specifications before substitution.
What are the specifications of WV121000-02 NO.13?
Key specifications for WV121000-02 NO.13: Valve Type for Which Designed: GATE; Stem Actuating End Type: THREADED EXTERNALLY; Material Document and Classification: AASTM-A479 GR410 ASSN STD SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 2.000 INCHES IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-504-7837 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.