The Insulator,washer, cataloged under National Stock Number 5970-00-231-0612, 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 The Delbert Blinn Co Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-231-0612 |
| Primary Part Number | MW855-260 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | The Delbert Blinn Co Inc |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.855 INCHES NOMINAL IN |
| Inside Diameter | 0.260 INCHES NOMINAL IN |
| Material | MICA 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 |
|---|---|
| MW855-260 PRIMARY | The Delbert Blinn Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 5030-40 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5970-00-231-0612 is a Insulator,washer, manufactured by The Delbert Blinn Co Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-231-0612 has 1 manufacturer part number on file: MW855-260 (The Delbert Blinn Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5895-01-231-9832. Verify interchangeability with system specifications before substitution.
Key specifications for MW855-260: Overall Height: 0.002 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 0.855 INCHES NOMINAL IN; Inside Diameter: 0.260 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.