The Insulator,washer, cataloged under National Stock Number 5970-00-159-0126, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-159-0126 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Status | ACTIVE |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 4.812 INCHES NOMINAL IN |
| Inside Diameter | 9.125 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 |
| Reference | Meaning |
|---|---|
| 1164-7 | 3/9 Design control — primary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
NSN 5970-00-159-0126 is a Insulator,washer, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 2990-00-430-0207, 5306-00-430-9437, 5310-00-638-0229. Verify interchangeability with system specifications before substitution.
Key specifications for 5970-00-159-0126: Overall Height: 0.025 INCHES NOMINAL IN; Style Designator: ROUND, FLAT; Outside Diameter: 4.812 INCHES NOMINAL IN; Inside Diameter: 9.125 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.