NSN 4820-01-485-4024 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-485-4024. Manufacturer of record part number: 5489215.
Nearby stock numbers← 4820-01-485-3968 Valve, Safety Relief
·
4820-01-485-4032 Sleeve, Directional Control Linea →
4820-01-485-4024 — Valves, Nonpowered
Features
Seat,valve — FSC 4820
Seating Surface Shape: ANGULAR
2 manufacturer part numbers on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 4820-01-485-4024
NIIN: 014854024
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 5489215
Manufacturer: Naval Sea Systems Command
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-485-4024, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-485-4024
Primary Part Number
5489215
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Seating Surface Shape
ANGULAR
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-485-40325489219POSSIBLE MATCH
SLEEVE,DIRECTIONAL CONTROL LINEA
Possible match (shared part number)Naval Sea Systems Command
4820-01-485-40396931026-1POSSIBLE MATCH
BALL,CHECK
Possible match (shared part number)Naval Sea Systems Command
4820-01-485-69776931025-1POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-485-73376931022 ITEM NO. 10POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Sea Systems Command
4820-01-497-91046931023-1POSSIBLE MATCH
PISTON,VALVE
Possible match (shared part number)Naval Sea Systems Command
NSN 4820-01-485-4024 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-485-4024?
NSN 4820-01-485-4024 has 2 manufacturer part numbers on file: 5489215 (Naval Sea Systems Command), 6931022 ITEM NO.7 (Naval Sea Systems Command).
What NSN replaces 4820-01-485-4024?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-485-4032, 4820-01-485-4039, 4820-01-485-6977. Verify interchangeability with system specifications before substitution.
What are the specifications of 5489215?
Key specifications for 5489215: Special Features: MAT:NYLATRON GS,45 DEG. SEATING SURFACE.; Seating Surface Shape: ANGULAR. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-485-4024 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.