The Insulator,washer, cataloged under National Stock Number 5970-00-644-0202, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-644-0202 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Status | ACTIVE |
| First Hole Width | 0.750 INCHES NOMINAL IN |
| First Hole Length | 0.625 INCHES NOMINAL IN |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 2.375 INCHES NOMINAL IN |
| Material | PLASTIC MELAMINE AND GLASS OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A25653P2 | 5/9 Secondary reference Bogue Electric Manufacturing Co |
| A25653P2 | C/1 Advisory reference — outside the item-of-supply concept Bogue Systems Inc Dba Bogue Systems Inc |
| A5720 | 5/9 Secondary reference Bogue Electric Manufacturing Co |
| 6301-3100576PC21 | 3/2 Design control — primary reference U.S. Government activity |
| A5720 | C/1 Advisory reference — outside the item-of-supply concept Bogue Systems Inc Dba Bogue Systems Inc |
NSN 5970-00-644-0202 is a Insulator,washer, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-107-8125, 5330-01-379-0808. Verify interchangeability with system specifications before substitution.
Key specifications for 5970-00-644-0202: First Hole Width: 0.750 INCHES NOMINAL IN; Overall Height: 0.188 INCHES NOMINAL IN; First Hole Length: 0.625 INCHES NOMINAL IN; Style Designator: ROUND, FLAT. 5 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.