The Insulator,washer, cataloged under National Stock Number 5970-00-372-4653, 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 Automatic Switch Company Dba Asco. 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-372-4653 |
| Primary Part Number | FV26-949-2 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 1.688 INCHES NOMINAL IN |
| Inside Diameter | 0.562 INCHES NOMINAL 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 |
|---|---|
| FV26-949-2 PRIMARY | Automatic Switch Company Dba Asco (USA) |
NSN 5970-00-372-4653 is a Insulator,washer, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-372-4653 has 1 manufacturer part number on file: FV26-949-2 (Automatic Switch Company Dba Asco).
2 possible matches (shared part number, not a government interchangeability claim): 5970-01-195-1812, 5970-01-195-1813. Verify interchangeability with system specifications before substitution.
Key specifications for FV26-949-2: Style Designator: ROUND, FLAT; Outside Diameter: 1.688 INCHES NOMINAL IN; Inside Diameter: 0.562 INCHES NOMINAL 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.