The Insulator,standoff, cataloged under National Stock Number 5970-00-085-4256, 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 - Mitchel Field. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-00-085-4256 |
| Primary Part Number | 343818 |
| Item Name | Insulator,standoff |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 UNTHREADED HOLE(S) |
| Outside Diameter | 1.625 INCHES NOMINAL IN |
| Top Hole Depth | 2.750 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE CAP |
| Material | COPPER ALLOY 360 CAP |
| Top Hole Diameter | 0.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 343818 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 2082744 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5970-00-085-4256 is a Insulator,standoff, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-085-4256 has 1 manufacturer part number on file: 343818 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 5305-00-717-7993. Verify interchangeability with system specifications before substitution.
Key specifications for 343818: Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S); Overall Height: 3.688 INCHES NOMINAL IN; Outside Diameter: 1.625 INCHES NOMINAL IN; Top Hole Depth: 2.750 INCHES NOMINAL IN. 6 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.