The Insulator,washer, cataloged under National Stock Number 5970-00-975-6640, 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 Merit Fastners Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-975-6640 |
| Primary Part Number | 6852452 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Merit Fastners Corp |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.562 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Inside Diameter | 0.257 INCHES NOMINAL IN |
| Material | GLASS AND PLASTIC EPOXY 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 |
|---|---|
| 6852452 PRIMARY | Merit Fastners Corp (USA) |
| Reference | Meaning |
|---|---|
| 6852452 | 5/9 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 5970-00-975-6640 is a Insulator,washer, manufactured by Merit Fastners Corp, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-975-6640 has 1 manufacturer part number on file: 6852452 (Merit Fastners Corp).
Key specifications for 6852452: Overall Height: 0.004 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.562 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Inside Diameter: 0.257 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.