The Plate,mounting, cataloged under National Stock Number 5340-01-378-3979, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 12 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-378-3979 |
| Primary Part Number | 1425AS974 |
| Item Name | Plate,mounting |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 |
| Length | 3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541, CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A |
| Material Document and Classification | AA-Q-250/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.126 INCHES MINIMUM AND 0.133 INCHES MAXIMUM FIRST HOLE IN |
| Mounting Hole Diameter | 0.145 INCHES MINIMUM AND 0.152 INCHES MAXIMUM ALL HOLES IN |
| Shape | RECTANGULAR |
| Surface Treatment | CHROMATE |
| Width | 1.250 INCHES NOMINAL1.250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 5052 |
| Thickness | 0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN |
| Mounting Hole Type | UNTHREADED |
| 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 |
|---|---|
| 1425AS974 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5340-01-378-3979 is a Plate,mounting, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-378-3979 has 1 manufacturer part number on file: 1425AS974 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1425AS974: Mounting Hole Quantity: 8; Length: 3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541, CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A; Material Document and Classification: AA-Q-250/8 FED SPEC SINGLE MATERIAL RESPONSE. 12 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.