The Heater,left Hand, cataloged under National Stock Number 4540-01-143-5590, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4540-01-143-5590 |
| Primary Part Number | 1264-755 |
| Item Name | Heater,left Hand |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| FSC Application Data | P-3C AIRCRAFT |
| 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 |
|---|---|
| 1264-755 | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2783 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4540-01-143-5590 is a Heater,left Hand, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-01-143-5590 has 1 manufacturer part number on file: 1264-755 (Bae Systems Information and Electronic Systems Integration Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5340-01-271-6112, 5120-01-568-9984, 6145-01-617-4323. Verify interchangeability with system specifications before substitution.
Key specifications for 1264-755: FSC Application Data: P-3C AIRCRAFT. 1 specification is 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.