The Insulator,washer, cataloged under National Stock Number 5970-01-071-0678, 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 Eaton Corp Information Management Systems Div Microwave Components. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-01-071-0678 |
| Primary Part Number | 40920 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Eaton Corp Information Management Systems Div Microwave Components |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Inside Diameter | 0.169 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN |
| Material | PLASTIC PHENOLIC 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 |
|---|---|
| 40920 | Eaton Corp Information Management Systems Div Microwave Components (USA) |
| Reference | Meaning |
|---|---|
| SM-B-890420 | 5/2 Secondary reference U.S. Government activity |
| 5620-39-94 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5970-01-071-0678 is a Insulator,washer, manufactured by Eaton Corp Information Management Systems Div Microwave Components, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-071-0678 has 1 manufacturer part number on file: 40920 (Eaton Corp Information Management Systems Div Microwave Components).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-333-5451. Verify interchangeability with system specifications before substitution.
Key specifications for 40920: Overall Height: 0.094 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Inside Diameter: 0.169 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.