NSN 4210-01-321-2257 · NIIN 013212257 · Part number 403221
Buckeye Fire Equipment Co · FSC 4210 — Firefighting Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 57658
Government record, cited
NSN 4210-01-321-2257 — this item is cataloged by the U.S. Government under National Stock Number 4210-01-321-2257. Manufacturer of record part number: 403221.
Nearby stock numbers← 4210-01-321-1792 Hose Assembly, Nonmetallic, Fire F
·
4210-01-321-3268 Nozzle, Fire Equipment →
Features
Nozzle,fire Extinguisher — FSC 4210
1 manufacturer part number on file
Manufacturer of record: Buckeye Fire Equipment Co
Identification
NSN: 4210-01-321-2257
NIIN: 013212257
FSC: 4210 — Firefighting Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 403221
Manufacturer: Buckeye Fire Equipment Co
General Description
The Nozzle,fire Extinguisher, cataloged under National Stock Number 4210-01-321-2257, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Buckeye Fire Equipment Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4210-01-321-2257
Primary Part Number
403221
Item Name
Nozzle,fire Extinguisher
FSC / FSG
4210 / 42 — Firefighting Equipment
Manufacturer
Buckeye Fire Equipment Co
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5315-01-441-250144860-1POSSIBLE MATCH
PIN,STRAIGHT,HEADLESS
Possible match (shared part number)Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
4220-01-461-92300102221-1POSSIBLE MATCH
SHELL,INFLATABLE
Possible match (shared part number)Bae Systems Land & Armaments L.p.
5999-01-495-4041403221POSSIBLE MATCH
PARTS KIT,ELECTRONIC EQUIPMENT
Possible match (shared part number)Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
5945-01-671-8650102221POSSIBLE MATCH
BRACKET,SOLENOID
Possible match (shared part number)Naval Surface Warfare Center Dahlgren Div
NSN 4210-01-321-2257 is a Nozzle,fire Extinguisher, manufactured by Buckeye Fire Equipment Co, classified under FSC 4210, Firefighting Equipment. Status: active.
What part numbers are listed for NSN 4210-01-321-2257?
NSN 4210-01-321-2257 has 1 manufacturer part number on file: 403221 (Buckeye Fire Equipment Co).
What NSN replaces 4210-01-321-2257?
4 possible matches (shared part number, not a government interchangeability claim): 5315-01-441-2501, 4220-01-461-9230, 5999-01-495-4041. Verify interchangeability with system specifications before substitution.
What are the specifications of 403221?
Key specifications for 403221: Special Features: MATL PLASTIC; End Item Identification: 4LB ABC DRY CHEMICAL EXTINGUISHER BUCKEYE FIRE EQUIPMENT CO LBS. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4210-01-321-2257 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.