The Plate,mounting, cataloged under National Stock Number 5340-01-355-8458, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 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 | 5340-01-355-8458 |
| Primary Part Number | 5623144 |
| Item Name | Plate,mounting |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| Raised Surface Height | 1.100 INCHES NOMINAL IN |
| Raised Surface Diameter | 7.000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-763, COMP 316L, COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.436 INCHES MINIMUM AND 0.443 INCHES MAXIMUM ALL HOLES IN |
| Shape | ROUND |
| Outside Diameter | 9.250 INCHES NOMINAL9.250 INCHES NOMINAL IN |
| Aperture Width | 4.070 INCHES NOMINAL IN |
| Aperture Length | 4.070 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 316L |
| Thickness | 2.000 INCHES NOMINAL2.000 INCHES NOMINAL IN |
| Mounting Hole Type | UNTHREADED |
| Aperture Shape | SQUARE |
| 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 |
|---|---|
| 5623144 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5340-01-355-8458 is a Plate,mounting, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-355-8458 has 1 manufacturer part number on file: 5623144 (Naval Sea Systems Command).
Key specifications for 5623144: Mounting Hole Quantity: 8; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE; Raised Surface Height: 1.100 INCHES NOMINAL IN; Raised Surface Diameter: 7.000 INCHES NOMINAL IN. 15 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.