The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-01-339-7775, 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 The Boeing Company Div Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-339-7775 |
| Primary Part Number | 74B830101-451 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fabrication Method | COMPRESSED |
| 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 |
|---|---|
| 74B830101-451 PRIMARY | The Boeing Company Div Defense (USA) |
| 74B830101-451 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 65M1008-451 | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc (USA) |
| Reference | Meaning |
|---|---|
| 10106268 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 30A70-200-7-2 | C/1 Advisory reference — outside the item-of-supply concept Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc |
NSN 1660-01-339-7775 is a Insulation Pipe Covering,thermal, manufactured by The Boeing Company Div Defense, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-339-7775 has 3 manufacturer part numbers on file: 74B830101-451 (The Boeing Company Div Defense), 74B830101-451 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 65M1008-451 (Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc).
Key specifications for 74B830101-451: End Item Identification: A/F-18-DCN AIRCRAFT; Fabrication Method: COMPRESSED. 1 specification is 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.