The Insulator,washer, cataloged under National Stock Number 5970-00-191-3453, 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4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-191-3453 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Status | ACTIVE |
| Material and Location | OVERALL BORON NITRIDE, GRADE HBR, UNION CARBIDE CORP |
| Style Designator | ROUND, FLAT |
| Outside Diameter | 0.438 INCHES NOMINAL IN |
| Inside Diameter | 0.199 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 |
| Reference | Meaning |
|---|---|
| H-4027 | 3/2 Design control — primary reference U.S. Government activity |
| 008-010349-004 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| H-4027 | 5/9 Secondary reference Ucar Carbon Co Inc |
| H4027 | C/1 Advisory reference — outside the item-of-supply concept Danbury Union Carbide Corp Sub of Dow Co the |
NSN 5970-00-191-3453 is a Insulator,washer, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
Key specifications for 5970-00-191-3453: Overall Height: 0.062 INCHES NOMINAL IN; Material and Location: OVERALL BORON NITRIDE, GRADE HBR, UNION CARBIDE CORP; Style Designator: ROUND, FLAT; Outside Diameter: 0.438 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.