The Disk,valve, cataloged under National Stock Number 4820-01-143-2919, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-143-2919
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Shank Diameter
2.187 INCHES NOMINAL IN
Flange Diameter
2.000 INCHES NOMINAL IN
Style Designator
POPPET
Seat Angle
43.5 DEGREES NOMINAL
Material
STEEL
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-448-227633670POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)Tate Andale, Llc
2090-01-526-555633670POSSIBLE MATCH
ARM,WINDSHIELD WIPER
Possible match (shared part number)Soncoast Procurement, Llc
2090-01-665-327733670POSSIBLE MATCH
ARM,WINDSHIELD WIPER
Possible match (shared part number)Ongaro Marine Ltd
2090-01-666-4832POSSIBLE MATCH
ARM,WINDSHIELD WIPER
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
33670
3/9Design control — primary reference
Dynex/rivett Inc.
Related Parts
4820-01-448-2276POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
33670
2090-01-526-5556POSSIBLE MATCH
ARM,WINDSHIELD WIPER
33670
2090-01-665-3277POSSIBLE MATCH
ARM,WINDSHIELD WIPER
33670
2090-01-666-4832POSSIBLE MATCH
ARM,WINDSHIELD WIPER
Frequently Asked Questions
What is NSN 4820-01-143-2919?
NSN 4820-01-143-2919 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-143-2919?
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-448-2276, 2090-01-526-5556, 2090-01-665-3277. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-143-2919?
Key specifications for 4820-01-143-2919: Shank Diameter: 2.187 INCHES NOMINAL IN; Flange Diameter: 2.000 INCHES NOMINAL IN; Overall Height: 2.615 INCHES NOMINAL IN; Style Designator: POPPET. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-143-2919 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.