The Grille,metal, cataloged under National Stock Number 5340-01-301-0643, 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 16 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 | 5340-01-301-0643 |
| Primary Part Number | 1551AS525-1 |
| Item Name | Grille,metal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Hole Quantity | 16 |
| Frame Overall Height | 27.560 INCHES MINIMUM AND 27.680 INCHES MAXIMUM IN |
| Metal Thickness | 0.040 INCHES NOMINAL IN |
| Frame Opening Height | 25.120 INCHES NOMINAL IN |
| Open Area in Percent | 48.0 |
| Frame Opening Width | 11.250 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Shape | RECTANGULAR |
| Perforation Shape | DIAMOND |
| Frame Overall Width | 13.690 INCHES MINIMUM AND 13.810 INCHES MAXIMUM IN |
| Frame Type | FLAT |
| Surface Treatment | PAINT FRAME |
| Surface Treatment | PAINT MESH |
| Core Type | PERFORATED METAL |
| Material | ALUMINUM ALLOY OVERALL |
| Frame Overall Thickness | 0.062 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1551AS525-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5340-01-301-0643 is a Grille,metal, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-301-0643 has 1 manufacturer part number on file: 1551AS525-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1551AS525-1: Mounting Hole Quantity: 16; Frame Overall Height: 27.560 INCHES MINIMUM AND 27.680 INCHES MAXIMUM IN; Metal Thickness: 0.040 INCHES NOMINAL IN; Frame Opening Height: 25.120 INCHES NOMINAL IN. 16 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.