The Plate,mending, cataloged under National Stock Number 5340-01-257-3289, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-257-3289 |
| Primary Part Number | 2417142 |
| Item Name | Plate,mending |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-46168 MIL SPEC SINGLE TREATMENT RESPONSE |
| Style Designator | RECTANGULAR |
| Material Document and Classification | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.280 INCHES MINIMUM AND 0.287 INCHES MAXIMUM IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Surface Treatment | PLASTIC POLYURETHANE |
| Material | ALUMINUM ALLOY 6061 |
| Hole Quantity | 6 |
| Mounting Hole Type | PLAIN |
| 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 |
|---|---|
| 2417142 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 2417142 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5340-01-257-3289 is a Plate,mending, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-257-3289 has 1 manufacturer part number on file: 2417142 (Lockheed Martin Corporation Div Rotary and Mission Systems).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-653-2937. Verify interchangeability with system specifications before substitution.
Key specifications for 2417142: Surface Treatment Document and Classification: MIL-C-46168 MIL SPEC SINGLE TREATMENT RESPONSE; Style Designator: RECTANGULAR; Material Document and Classification: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE; Mounting Hole Diameter: 0.280 INCHES MINIMUM AND 0.287 INCHES MAXIMUM IN. 9 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.