The Plate,mounting, cataloged under National Stock Number 5340-01-461-4493, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Vertex Modernization and Sustainment Llc. Government technical data includes 13 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 | 5340-01-461-4493 |
| Primary Part Number | 1988AS1157-2 |
| Item Name | Plate,mounting |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Vertex Modernization and Sustainment Llc |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Length | 1.0000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541, CL 3 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541, CL 1A MIL SPEC 1ST TREATMENT RESPONSE A |
| Material Document and Classification | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.2500 INCHES NOMINAL ALL HOLES IN |
| Shape | RECTANGULAR |
| Thread Size | 0.250-20 |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment | CHROMATE |
| Width | 1.2500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Thickness | 1.0000 INCHES NOMINAL IN |
| Mounting Hole Type | THREADED |
| 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 |
|---|---|
| 1988AS1157-2 PRIMARY | Vertex Modernization and Sustainment Llc (USA) |
| 1988AS1157-2 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5340-01-461-4493 is a Plate,mounting, manufactured by Vertex Modernization and Sustainment Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-461-4493 has 2 manufacturer part numbers on file: 1988AS1157-2 (Vertex Modernization and Sustainment Llc), 1988AS1157-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1988AS1157-2: Mounting Hole Quantity: 1; Length: 1.0000 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541, CL 3 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541, CL 1A MIL SPEC 1ST TREATMENT RESPONSE A; Material Document and Classification: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE. 13 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.