NSN 4820-00-404-3493 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-404-3493. Manufacturer of record part number: V51.
Also searched as4820-00-404-3493 ·
4820004043493 ·
NIIN 004043493 ·
00-404-3493 ·
FSC 4820 Valves, Nonpowered · CAGE 75214 · V51
Nearby stock numbers← 4820-00-404-3490 Valve, Flow Control
·
4820-00-404-3503 Valve, Flow Control →
4820-00-404-3493 — Valves, Nonpowered
Features
Valve,check — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
Identification
NSN: 4820-00-404-3493
NIIN: 004043493
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: V51
Manufacturer: Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
General Description
The Valve,check, cataloged under National Stock Number 4820-00-404-3493, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 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,check
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (CAGE 75214)
Technical Specifications
Parameter
Value
NSN
4820-00-404-3493
Primary Part Number
V51
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4920-00-735-3297POSSIBLE MATCH
ROD,VALVE GUIDE
Possible match (shared part number)
5340-01-012-15801525 V51POSSIBLE MATCH
PADLOCK
Possible match (shared part number)Master Lock Company Llc
Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA)
Related Parts
4920-00-735-3297POSSIBLE MATCH
ROD,VALVE GUIDE
5340-01-012-1580POSSIBLE MATCH
PADLOCK
1525 V51
5305-01-383-9120POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Frequently Asked Questions
What is NSN 4820-00-404-3493?
NSN 4820-00-404-3493 is a Valve,check, manufactured by Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-404-3493?
NSN 4820-00-404-3493 has 1 manufacturer part number on file: V51 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc).
What NSN replaces 4820-00-404-3493?
3 possible matches (shared part number, not a government interchangeability claim): 4920-00-735-3297, 5340-01-012-1580, 5305-01-383-9120. Verify interchangeability with system specifications before substitution.
Is NSN 4820-00-404-3493 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.