The Air Conditioner, cataloged under National Stock Number 4120-01-437-6765, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4120-01-437-6765 |
| Primary Part Number | 1003964 |
| Item Name | Air Conditioner |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| 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 |
|---|---|
| 1003964 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 4120-01-437-6765 is a Air Conditioner, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-437-6765 has 1 manufacturer part number on file: 1003964 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-581-0631. Verify interchangeability with system specifications before substitution.
Key specifications for 1003964: End Item Identification: USED ON T664 AND 938F CATERPILLAR WHEEL LOADER TRACTOR. 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.