The Hardware Kit,electronic Equipmen, cataloged under National Stock Number 5340-00-555-8658, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-555-8658 |
| Primary Part Number | 4231-808631 |
| Item Name | Hardware Kit,electronic Equipmen |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Component Quantity | 7 |
| Document Type | ENGINEERING DRAWING |
| Document Identification | 4231-808631 |
| Component Document Origin | INDUSTRIAL |
| Nonsupply Items and Quantities | INSULATOR,DISK 2; INSULATOR,WASHER 1; NUT,HEXAGON 1; TERMINAL,LUG 1; WASHER,FLAT 1; WASHER,LOCK 1 |
| Document Source | 56232 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 4231-808631 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 140A600G02 | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| 808631 | 5/9 Secondary reference L3 Aviation Products, Inc. Dba L3 Technologies |
NSN 5340-00-555-8658 is a Hardware Kit,electronic Equipmen, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-555-8658 has 1 manufacturer part number on file: 4231-808631 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-371-0290. Verify interchangeability with system specifications before substitution.
Key specifications for 4231-808631: Component Quantity: 7; Document Type: ENGINEERING DRAWING; Document Identification: 4231-808631; Component Document Origin: INDUSTRIAL. 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.