The Beam,sealed, cataloged under National Stock Number 1730-01-228-1639, is classified within Federal Supply Class 1730 (Aircraft Ground Servicing Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The manufacturer of record is J. W. Speaker Corporation Dba Jw Speaker Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1730-01-228-1639 |
| Primary Part Number | 4589 |
| Item Name | Beam,sealed |
| FSC / FSG | 1730 / 17 — Aircraft Ground Servicing Equipment |
| Manufacturer | J. W. Speaker Corporation Dba Jw Speaker Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 4589 PRIMARY | J. W. Speaker Corporation Dba Jw Speaker Corp (USA) |
NSN 1730-01-228-1639 is a Beam,sealed, manufactured by J. W. Speaker Corporation Dba Jw Speaker Corp, classified under FSC 1730, Aircraft Ground Servicing Equipment. Status: active.
NSN 1730-01-228-1639 has 1 manufacturer part number on file: 4589 (J. W. Speaker Corporation Dba Jw Speaker Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-236-4384, 4820-01-469-0924. Verify interchangeability with system specifications before substitution.
Key specifications for 4589: End Item Identification: 5 IN./54 GUN MOUNT IN. 0 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.