The Insulator,bushing, cataloged under National Stock Number 5970-01-255-3071, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-255-3071 |
| Primary Part Number | 63B304139P1 |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Second Counterbore Depth | 0.240 INCHES NOMINAL IN |
| Identification Code Color | BLACK |
| Shank Height | 0.080 INCHES NOMINAL IN |
| First Counterbore Diameter | 0.312 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Outside Diameter | 0.620 INCHES NOMINAL IN |
| First Counterbore Depth | 0.100 INCHES NOMINAL IN |
| Shank Outside Diameter | 0.480 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Inside Diameter | 0.194 INCHES NOMINAL IN |
| Second Counterbore Diameter | 0.312 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC 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 |
|---|---|
| 63B304139P1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5970-01-255-3071 is a Insulator,bushing, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-255-3071 has 1 manufacturer part number on file: 63B304139P1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 63B304139P1: Second Counterbore Depth: 0.240 INCHES NOMINAL IN; Overall Height: 0.520 INCHES NOMINAL IN; Identification Code Color: BLACK; Shank Height: 0.080 INCHES NOMINAL 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.