The Heat Interchanger,refrigerant, cataloged under National Stock Number 4130-01-033-6948, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Heat Interchanger,refrigerant |
| FSC / FSG | 4130 — Refrigeration and Air Conditioning Components (FSG 41) |
| Parameter | Value |
|---|---|
| NSN | 4130-01-033-6948 |
| Item Name | Heat Interchanger,refrigerant |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| 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 |
| Reference | Meaning |
|---|---|
| 10204-3 | 3/2 Design control — primary reference U.S. Government activity |
| 10204-3 | 3/9 Design control — primary reference Air Dry Co of America, Llc |
NSN 4130-01-033-6948 is a Heat Interchanger,refrigerant, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6685-01-176-3442. Verify interchangeability with system specifications before substitution.
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.