The Plate,mounting, cataloged under National Stock Number 5340-00-157-4411, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-157-4411 |
| Primary Part Number | 209452PC9 |
| Item Name | Plate,mounting |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 AND 2 |
| Aperture Type | COUNTERBORED |
| Length | 2.750 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.164 INCHES NOMINAL ALL HOLES IN |
| Mounting Hole Diameter | 0.112 INCHES NOMINAL FIRST HOLE IN |
| Shape | RECTANGULAR |
| Aperture Diameter | 0.6873 INCHES MINIMUM AND 0.6877 INCHES MAXIMUM IN |
| Counterbore Depth | 0.190 INCHES NOMINAL IN |
| Features Provided | APERTURE |
| Counterbore Diameter | 0.810 INCHES NOMINAL IN |
| Thread Size | 8-32 |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Width | 2.250 INCHES NOMINAL IN |
| Material | ALUMINUM |
| Thickness | 0.375 INCHES NOMINAL IN |
| Mounting Hole Type | THREADED AND UNTHREADED |
| Aperture Shape | ROUND |
| 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 |
NSN 5340-00-157-4411 is a Plate,mounting, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-157-4411 has 2 manufacturer part numbers on file: 209452PC9 (Lockheed Martin Corporation Div Rms - Mitchel Field), 209452PC9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 209452PC9: Mounting Hole Quantity: 4 AND 2; Aperture Type: COUNTERBORED; Length: 2.750 INCHES NOMINAL IN; Mounting Hole Diameter: 0.164 INCHES NOMINAL ALL HOLES IN. 17 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.