NSN 4820-01-253-6251 · NIIN 012536251 · Part number 594W-21ST
Superior Valve Co · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 58553
Government record, cited
NSN 4820-01-253-6251 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-253-6251. Manufacturer of record part number: 594W-21ST.
The Valve,ball, cataloged under National Stock Number 4820-01-253-6251, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Superior Valve Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,ball
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Superior Valve Co (CAGE 58553)
Technical Specifications
Parameter
Value
NSN
4820-01-253-6251
Primary Part Number
594W-21ST
Item Name
Valve,ball
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Superior Valve Co
Status
ACTIVE
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1560-01-308-5108100-067-9POSSIBLE MATCH
PAD,POSITIONING,PYLON
Possible match (shared part number)Bell Textron Inc
3940-01-347-8661100-0679POSSIBLE MATCH
SLING ASSEMBLY,VEHICLE LIFTING
Possible match (shared part number)The Caldwell Group, Inc.
5998-01-530-33591008735POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
Possible match (shared part number)Technology Advancement Group, Inc
4720-01-541-15530724-MM5-G02POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc
6150-01-602-22551000679POSSIBLE MATCH
WIRING HARNESS
Possible match (shared part number)Vt Leeboy Inc. Dba Leeboy Div Vt Leeboy
NSN 4820-01-253-6251 is a Valve,ball, manufactured by Superior Valve Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-253-6251?
NSN 4820-01-253-6251 has 1 manufacturer part number on file: 594W-21ST (Superior Valve Co).
What NSN replaces 4820-01-253-6251?
6 possible matches (shared part number, not a government interchangeability claim): 1560-01-308-5108, 3940-01-347-8661, 5998-01-530-3359. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-253-6251 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.