The Insert,insulator, cataloged under National Stock Number 5970-01-424-9258, 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 Mandex, Inc. Div Communications and Electronic Systems. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-424-9258 |
| Primary Part Number | 137939021 |
| Item Name | Insert,insulator |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Mandex, Inc. Div Communications and Electronic Systems |
| Status | ACTIVE |
| 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 |
|---|---|
| 137939021 PRIMARY | Mandex, Inc. Div Communications and Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| 137939021 | 5/9 Secondary reference Rjo Enterprises Inc |
| 137939021 | 5/9 Secondary reference Rjo Enterprises Inc |
NSN 5970-01-424-9258 is a Insert,insulator, manufactured by Mandex, Inc. Div Communications and Electronic Systems, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-424-9258 has 1 manufacturer part number on file: 137939021 (Mandex, Inc. Div Communications and Electronic Systems).
Key specifications for 137939021: Overall Height: 0.310 INCHES NOMINAL IN; Overall Length: 15.340 INCHES NOMINAL IN; Overall Width: 7.580 INCHES NOMINAL IN; Special Features: MATERIAL PPP-C-1752, TYPE III, CLASS 2, GRADE D, BLACK. 0 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.