The Plunger,solenoid, cataloged under National Stock Number 5945-00-397-5631, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-397-5631 |
| Primary Part Number | 549121 |
| Item Name | Plunger,solenoid |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Overall Diameter | 0.433 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN |
| Felt Washer | NOT INCLUDED |
| Machined Undercut Feature | NOT INCLUDED |
| Material | IRON |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 549121 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 549121 | 3/9 Design control — primary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 5945-00-397-5631 is a Plunger,solenoid, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-397-5631 has 1 manufacturer part number on file: 549121 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-291-7323. Verify interchangeability with system specifications before substitution.
Key specifications for 549121: Overall Diameter: 0.433 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN; Felt Washer: NOT INCLUDED; Overall Length: 0.578 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN; Machined Undercut Feature: NOT INCLUDED. 4 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.