The Diffuser,air,aircraft Heating an, cataloged under National Stock Number 1660-01-598-8401, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is U S Special Operations Command Macdill Air Force Base Sordac-J4. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-598-8401 |
| Primary Part Number | M123033 |
| Item Name | Diffuser,air,aircraft Heating an |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | U S Special Operations Command Macdill Air Force Base Sordac-J4 |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M123033 PRIMARY | U S Special Operations Command Macdill Air Force Base Sordac-J4 (USA) |
| Reference | Meaning |
|---|---|
| M123033 | 3/9 Design control — primary reference L-3 Communications Integrated Systems L.p. Dba Special Support Programs Division Div Special Support Programs |
NSN 1660-01-598-8401 is a Diffuser,air,aircraft Heating an, manufactured by U S Special Operations Command Macdill Air Force Base Sordac-J4, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-598-8401 has 1 manufacturer part number on file: M123033 (U S Special Operations Command Macdill Air Force Base Sordac-J4).
Key specifications for M123033: Special Features: MH-60M PLENUM ASSY, LRU-1, LENGTH 8.32 INCHES, WIDTH 10.2 INCHES 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.
NSN 1660-01-598-8401 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.