NSN 4820-01-466-5813 · NIIN 014665813 · Part number 32K-0021
Bae Systems Land & Armaments L.p. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 44114
Government record, cited
NSN 4820-01-466-5813 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-466-5813. Manufacturer of record part number: 32K-0021.
Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed: 0.3125 INCHES IN
Valve Design Control Activity: 44114
Material: STEEL CORROSION RESISTING
2 manufacturer part numbers on file
Manufacturer of record: Bae Systems Land & Armaments L.p.
Identification
NSN: 4820-01-466-5813
NIIN: 014665813
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 32K-0021
Manufacturer: Bae Systems Land & Armaments L.p.
General Description
The Retainer,seat,valve, cataloged under National Stock Number 4820-01-466-5813, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-466-5813
Primary Part Number
32K-0021
Item Name
Retainer,seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Bae Systems Land & Armaments L.p.
Status
ACTIVE
Material Document and Classification
QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE
Valve Size for Which Designed
0.3125 INCHES IN
Valve Design Control Activity
44114
Material
STEEL CORROSION RESISTING
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.
4820-01-466-587332K-0038POSSIBLE MATCH
RETAINER,SEAT,VALVE
Possible match (shared part number)Bae Systems Land & Armaments L.p.
4820-01-466-591432K-0011POSSIBLE MATCH
PISTON,VALVE
Possible match (shared part number)Bae Systems Land & Armaments L.p.
2825-01-466-810532K-0010POSSIBLE MATCH
SEAL RING ASSEMBLY,LABYRINTH
Possible match (shared part number)Bae Systems Land & Armaments L.p.
3040-01-466-811232K-0024POSSIBLE MATCH
ROD,ADJUSTING
Possible match (shared part number)Bae Systems Land & Armaments L.p.
4820-01-466-812332K-0016POSSIBLE MATCH
SLEEVE,DIRECTIONAL CONTROL LINEA
Possible match (shared part number)Bae Systems Land & Armaments L.p.
NSN 4820-01-466-5813 is a Retainer,seat,valve, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-466-5813?
NSN 4820-01-466-5813 has 2 manufacturer part numbers on file: 32K-0050 FIND 78 (Bae Systems Land & Armaments L.p.), 32K-0021 (Bae Systems Land & Armaments L.p.).
What NSN replaces 4820-01-466-5813?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-466-5873, 4820-01-466-5914, 2825-01-466-8105. Verify interchangeability with system specifications before substitution.
What are the specifications of 32K-0021?
Key specifications for 32K-0021: Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 0.3125 INCHES IN; Special Features: W/S SEAWOLF CLASS SSN; Valve Design Control Activity: 44114. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-466-5813 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.