The Insulator,plate, cataloged under National Stock Number 5970-01-255-3857, 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 Brush Wellman Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-255-3857 |
| Primary Part Number | 715880-1 |
| Item Name | Insulator,plate |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Brush Wellman Inc |
| Status | ACTIVE |
| First End Radius | 0.190 INCHES NOMINAL IN |
| Fifth Hole Spacing | 0.210 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| First Hole Diameter | 0.155 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Third Hole Spacing | 1.187 INCHES NOMINAL IN |
| Style Designator | FLAT, DIAMOND |
| First Side Radius | 0.520 INCHES NOMINAL IN |
| Second Hole Spacing | 0.660 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN |
| Second Hole Diameter | 0.140 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN |
| Fourth Hole Spacing | 0.430 INCHES NOMINAL IN |
| First Hole Spacing | 0.190 INCHES NOMINAL IN |
| Material | BERYLLIUM OXIDE OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5970-01-255-3857 is a Insulator,plate, manufactured by Brush Wellman Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-255-3857 has 3 manufacturer part numbers on file: 715880-1 (American Beryllia Inc), 715880-1 (Raytheon Company Div Rmd Strategic), 715880-1 (Brush Wellman Inc).
Key specifications for 715880-1: Overall Height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; First End Radius: 0.190 INCHES NOMINAL IN; Fifth Hole Spacing: 0.210 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; First Hole Diameter: 0.155 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN. 11 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.