The Insulator,washer, cataloged under National Stock Number 5970-01-074-6777, 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 Reliance Mica Company, Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5970-01-074-6777 |
| Primary Part Number | 468X166X1-3MC |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Reliance Mica Company, Inc. |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN |
| Inside Diameter | 0.161 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 468X166X1-3MC PRIMARY | Reliance Mica Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 166X438 | 5/9 Secondary reference Reliance Mica Company, Inc. |
NSN 5970-01-074-6777 is a Insulator,washer, manufactured by Reliance Mica Company, Inc., classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-074-6777 has 1 manufacturer part number on file: 468X166X1-3MC (Reliance Mica Company, Inc.).
Key specifications for 468X166X1-3MC: Overall Height: 0.002 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN; Inside Diameter: 0.161 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN. 3 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.