The Insulator,bushing, cataloged under National Stock Number 5970-01-400-2104, 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 Hansome Energy Systems Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5970-01-400-2104 |
| Primary Part Number | HAN 4999-4 |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Hansome Energy Systems Inc |
| Status | ACTIVE |
| First Counterbore Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| First Counterbore Depth | 0.190 INCHES NOMINAL IN |
| Inside Diameter | 0.625 INCHES NOMINAL IN |
| End Configuration | BOTH ENDS SQUARED |
| Material | PLASTIC EPOXY AND FIBERGLASS LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| HAN 4999-4 PRIMARY | Hansome Energy Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| HAN 4999 | D/9 Drawing number reference only Hansome Energy Systems Inc |
| D230-183-35 | 5/1 Secondary reference Hansome Energy Systems Inc |
NSN 5970-01-400-2104 is a Insulator,bushing, manufactured by Hansome Energy Systems Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-400-2104 has 1 manufacturer part number on file: HAN 4999-4 (Hansome Energy Systems Inc).
Key specifications for HAN 4999-4: Overall Height: 0.820 INCHES NOMINAL IN; First Counterbore Diameter: 1.000 INCHES NOMINAL IN; Style Designator: CYLINDRICAL; Outside Diameter: 1.250 INCHES NOMINAL IN. 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.