The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-01-385-5334, 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 Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 1660-01-385-5334 |
| Primary Part Number | 33M1038-111 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc |
| 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 |
|---|---|
| 33M1038-111 PRIMARY | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc (USA) |
| 304242-11 | Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA) |
| Reference | Meaning |
|---|---|
| 304242-11 | 5/2 Secondary reference U.S. Government activity |
| 33M1038 | D/9 Drawing number reference only Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc |
NSN 1660-01-385-5334 is a Insulation Pipe Covering,thermal, manufactured by Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-385-5334 has 2 manufacturer part numbers on file: 33M1038-111 (Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc), 304242-11 (Kidde Technologies, Inc Div Kidde Aerospace and Defense).
4 possible matches (shared part number, not a government interchangeability claim): 1560-01-385-5363, 1660-01-385-5391, 1560-01-385-5820. Verify interchangeability with system specifications before substitution.
Key specifications for 33M1038-111: Special Features: C/O; AR -8 COVER, AR -10 INSULATION QUILTED, AR -11 INSULATION QUILTED, AR -12 COVER, 2 EA HTM-1001 CAPSTAN, 2 EA HTM-1154 WASHERS, AR -21 HHT-1-100 TAPE FASTENER, AR -22 HHT-2-100 TAPE FASTENER, AR -23 NYLON COATED THREAD, 1 EA. HTM-5379 POLYIMIDE LAMINATE SPACER ISOLATOR MOUNTING; End Item Identification: B-1B BOMBER AIRPLANE.. 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.