The Insulator,washer, cataloged under National Stock Number 5970-01-239-0997, 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 The Boeing Company. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Insulator,washer |
| FSC / FSG | 5970 — Electrical Insulators and Insulating Materials (FSG 59) |
| Manufacturers | Serra Manufacturing Corporation Dba Serra Manufacturing (CAGE 07632); The Boeing Company (CAGE 18355) |
| Parameter | Value |
|---|---|
| NSN | 5970-01-239-0997 |
| Primary Part Number | S0142B26-24 |
| Item Name | Insulator,washer |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| S0142B26-24 | Serra Manufacturing Corporation Dba Serra Manufacturing (USA) |
| S0142B26-24 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| S0142B26-24 | 5/9 Secondary reference Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Defense and Electronics Systems |
| S0142B26-24 | 5/1 Secondary reference Drs Network & Imaging Systems Llc |
NSN 5970-01-239-0997 is a Insulator,washer, manufactured by The Boeing Company, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-239-0997 has 2 manufacturer part numbers on file: S0142B26-24 (Serra Manufacturing Corporation Dba Serra Manufacturing), S0142B26-24 (The Boeing Company).
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.