Material: STEEL CORROSION RESISTING OR PLASTIC SEAT
Identification
NSN: 4820-01-286-8630
NIIN: 012868630
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-286-8630, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-286-8630
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Material
STEEL CORROSION RESISTING OR PLASTIC SEAT
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.
4820-01-286-8802126804POSSIBLE MATCH
GUIDE,VALVE STEM
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-286-8814134668POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-286-9481126814POSSIBLE MATCH
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-286-9482126814-2POSSIBLE MATCH
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-468-77711346-2961-2C16S16SBPOSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
1346-2961 PC 22
5/2Secondary reference
U.S. Government activity
1346-2961
D/9Drawing number reference only
Circor Aerospace, Inc. Dba Circle Seal Controls Use CAGE Code 91816 for Cataloging
134669
3/2Design control — primary reference
U.S. Government activity
Related Parts
4820-01-286-8802POSSIBLE MATCH
GUIDE,VALVE STEM
126804
4820-01-286-8814POSSIBLE MATCH
DISK,VALVE
134668
4820-01-286-9481POSSIBLE MATCH
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
126814
4820-01-286-9482POSSIBLE MATCH
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
126814-2
4820-01-468-7771POSSIBLE MATCH
VALVE,FLOW CONTROL
1346-2961-2C16S16SB
Frequently Asked Questions
What is NSN 4820-01-286-8630?
NSN 4820-01-286-8630 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-286-8630?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-286-8802, 4820-01-286-8814, 4820-01-286-9481. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-286-8630?
Key specifications for 4820-01-286-8630: Material: STEEL CORROSION RESISTING OR PLASTIC SEAT. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-286-8630 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.