The Insulator,bushing, cataloged under National Stock Number 5970-01-026-4379, 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 Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5970-01-026-4379 |
| Primary Part Number | 5740-TE-187-086-140 |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| Status | ACTIVE |
| Shank Height | 0.086 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | MIL-P-14078-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.323 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN |
| Shank Outside Diameter | 0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Inside Diameter | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| 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 |
|---|---|
| 5740-TE-187-086-140 PRIMARY | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| GW502BL06CT | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2708-18786-T140 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 2708-18786-7140 | C/1 Advisory reference — outside the item-of-supply concept New Haven Mfg Corp Amatom Electronic Hardware Div |
NSN 5970-01-026-4379 is a Insulator,bushing, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-026-4379 has 2 manufacturer part numbers on file: 5740-TE-187-086-140 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc), GW502BL06CT (Northrop Grumman Systems Corporation).
Key specifications for 5740-TE-187-086-140: Overall Height: 0.142 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN; Shank Height: 0.086 INCHES NOMINAL IN; Style Designator: SHOULDER; Material Document and Classification: MIL-P-14078-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 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.