The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1560-01-385-3183, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1560-01-385-3183 |
| Primary Part Number | 33M1038-121 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 33M1038-121 PRIMARY | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc (USA) |
| Reference | Meaning |
|---|---|
| 304242-21 | 1/2 Source control — Government-approved source U.S. Government activity |
| 331038 | 5/9 Secondary reference Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc |
NSN 1560-01-385-3183 is a Insulation Pipe Covering,thermal, manufactured by Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-385-3183 has 1 manufacturer part number on file: 33M1038-121 (Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-534-1894. Verify interchangeability with system specifications before substitution.
Key specifications for 33M1038-121: Special Features: C/O; AR -8 COVER, AR -10 INSULATION QUILT, AR -11 INSULATION QUILT, AR -12 COVER, 2 EA. HTM-1001 CAPSTAN, 2 EA HTM-1154 WASHERS, 1 EA SPACER HTM-5378, AR -21 HHT-1-100 TAPE FASTENER, AR -22 HHT-2-100 TAPE FASTENER, AR -23 THREAD NYLON COATED; End Item Identification: B-1B BOMBER AIRPLANE.. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.