The Insulator,washer, cataloged under National Stock Number 5970-01-269-0049, 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 Honeywell Intl Inc Defense Avionics Systems. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-269-0049 |
| Primary Part Number | 1979877-3 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.495 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Inside Diameter | 0.173 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN |
| Material | OVERALL PLASTIC,KAPTON,E I DUPONT DE NEMOURS AND CO INC OR OVERALL PLASTIC,THERMAFILM II,THERMALLOY INC |
| 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 |
|---|---|
| 1979877-3 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| Reference | Meaning |
|---|---|
| 1979877-3 | 5/9 Secondary reference Thermalloy Co Inc |
| 1979877-3 | 5/9 Secondary reference U.S. Government activity |
NSN 5970-01-269-0049 is a Insulator,washer, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-269-0049 has 1 manufacturer part number on file: 1979877-3 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for 1979877-3: Overall Height: 0.003 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.495 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Inside Diameter: 0.173 INCHES MINIMUM AND 0.179 INCHES MAXIMUM 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.