The Insulator,bushing, cataloged under National Stock Number 5970-01-280-3303, 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 Rms. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-280-3303 |
| Primary Part Number | 1210B1274 |
| Item Name | Insulator,bushing |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Material Document and Classification | MIL-P-15035, TYPE FBE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.650 INCHES NOMINAL IN |
| Shank Outside Diameter | 0.518 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC AND COTTON 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 |
|---|---|
| 1210B1274 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 1210B1274 | Diversified Machining, Inc. Dba Diversified Machining Inc (USA) |
| 1210B1274 | Chesapeake Machine Works Inc Dba Chesapeake Machine Works Inc (USA) |
| Reference | Meaning |
|---|---|
| 1210B1274 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 5970-01-280-3303 is a Insulator,bushing, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-280-3303 has 3 manufacturer part numbers on file: 1210B1274 (Lockheed Martin Corporation Div Rms), 1210B1274 (Diversified Machining, Inc. Dba Diversified Machining Inc), 1210B1274 (Chesapeake Machine Works Inc Dba Chesapeake Machine Works Inc).
Key specifications for 1210B1274: Overall Height: 0.112 INCHES NOMINAL IN; Material Document and Classification: MIL-P-15035, TYPE FBE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.650 INCHES NOMINAL IN; Shank Outside Diameter: 0.518 INCHES NOMINAL IN. 4 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.