The Insulator,washer, cataloged under National Stock Number 5970-00-168-2907, 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 Prestolite Electric 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5970-00-168-2907 |
| Primary Part Number | MU54N |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Inside Diameter | 0.640 INCHES MINIMUM AND 0.650 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 |
|---|---|
| MU54N PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| MU54N | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5970-00-168-2907 is a Insulator,washer, manufactured by Prestolite Electric Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-168-2907 has 1 manufacturer part number on file: MU54N (Prestolite Electric Inc).
Key specifications for MU54N: Overall Height: 0.063 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 1.250 INCHES NOMINAL IN; Inside Diameter: 0.640 INCHES MINIMUM AND 0.650 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.