The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-01-253-7517, 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. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-253-7517 |
| Primary Part Number | 64J1012 |
| 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 |
| Nominal Fitting Size Accommodated | 5.790 INCHES IN |
| Temp Rating | -80.0 FAHRENHEIT MINIMUM AND 315.0 FAHRENHEIT MAXIMUM DEGF |
| 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 |
|---|---|
| 64J1012 PRIMARY | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc (USA) |
| Reference | Meaning |
|---|---|
| C9751-2 | D/9 Drawing number reference only U.S. Government activity |
NSN 1660-01-253-7517 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 1660-01-253-7517 has 1 manufacturer part number on file: 64J1012 (Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc).
Key specifications for 64J1012: Nominal Fitting Size Accommodated: 5.790 INCHES IN; Temp Rating: -80.0 FAHRENHEIT MINIMUM AND 315.0 FAHRENHEIT MAXIMUM DEGF; Special Features: ITEM TO HAVE A EXPANSION JOINT; UNIT BONDED TOGETHER AT .500 IN. OVERLAPS AND LOCKWIRED AT EACH END; F-16C/D AIRCRAFT IN. 2 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 1660-01-253-7517 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.