The Insulator,disk, cataloged under National Stock Number 5970-01-418-7781, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-01-418-7781 |
| Primary Part Number | 29778 |
| Item Name | Insulator,disk |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Style Designator | FLAT, ROUND |
| Material Document and Classification | MIL-P-18177, TYPE GEE MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-I-24768/2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Material | PLASTIC EPOXY AND FIBERGLASS OVERALL |
| 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 |
|---|---|
| 29778 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 29778 | 5/9 Secondary reference United Technologies Corp Hamilton Sundstrand Corp |
NSN 5970-01-418-7781 is a Insulator,disk, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-418-7781 has 1 manufacturer part number on file: 29778 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-649-3560. Verify interchangeability with system specifications before substitution.
Key specifications for 29778: Overall Height: 0.010 INCHES NOMINAL IN; Style Designator: FLAT, ROUND; Material Document and Classification: MIL-P-18177, TYPE GEE MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-I-24768/2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 4.500 INCHES NOMINAL IN. 4 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.