NSN 4820-01-169-1011 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-169-1011. Manufacturer of record part number: 8231.
Manufacturer of record: Provision, Inc. Dba Provision Inc
Identification
NSN: 4820-01-169-1011
NIIN: 011691011
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8231
Manufacturer: Provision, Inc. Dba Provision Inc
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-169-1011, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Provision, Inc. Dba Provision Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-169-1011
Primary Part Number
8231
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Provision, Inc. Dba Provision Inc
Status
ACTIVE
Criticality Code Justification
FEAT
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
S
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5985-01-229-0800POSSIBLE MATCH
DIVIDER,POWER,RADIO FREQUENCY
Possible match (shared part number)
5340-01-362-5095POSSIBLE MATCH
STANDOFF,THREADED,SPACING
Possible match (shared part number)
3040-01-366-4013POSSIBLE MATCH
HUB,BODY
Possible match (shared part number)
5310-01-494-1474POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)
5895-01-557-27708231POSSIBLE MATCH
CONTROL,AMPLIFIER
Possible match (shared part number)Deep Sea Systems International, Inc. Dba Dssi
3120-01-650-820982300000-1POSSIBLE MATCH
BEARING,PLAIN,TRACK ROLLER
Possible match (shared part number)Federal Equipment Co
NSN 4820-01-169-1011 is a Seat,valve, manufactured by Provision, Inc. Dba Provision Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-169-1011?
NSN 4820-01-169-1011 has 2 manufacturer part numbers on file: 8231CP (Naval Inventory Control Point Mechanicsburg), 8231 (Provision, Inc. Dba Provision Inc).
What NSN replaces 4820-01-169-1011?
7 possible matches (shared part number, not a government interchangeability claim): 5985-01-229-0800, 5340-01-362-5095, 3040-01-366-4013. Verify interchangeability with system specifications before substitution.
What are the specifications of 8231?
Key specifications for 8231: Criticality Code Justification: FEAT; Special Features: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-169-1011 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.