The Insulator,washer, cataloged under National Stock Number 5970-01-057-9668, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-057-9668 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Material Document and Classification | MIL-R-25897, TYPE 2, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| Inside Diameter | 0.190 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 950B719-1 | 3/2 Design control — primary reference U.S. Government activity |
| 950B719-1 | 5/9 Secondary reference U.S. Government activity |
| 8538735 | 5/9 Secondary reference U.S. Government activity |
NSN 5970-01-057-9668 is a Insulator,washer, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
Key specifications for 5970-01-057-9668: Overall Height: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN; Style Designator: ROUND, FLAT; Material Document and Classification: MIL-R-25897, TYPE 2, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN. 5 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.