The Cover,access, cataloged under National Stock Number 5340-01-587-1598, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Walker Power Systems, Inc. Dba Tiernay Turbines. Government technical data includes 11 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 | 5340-01-587-1598 |
| Primary Part Number | 203454-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Walker Power Systems, Inc. Dba Tiernay Turbines |
| Status | ACTIVE |
| Distance From First Hole Centerline to End Along Width | 0.419 INCHES NOMINAL IN |
| Length | 9.000 INCHES NOMINAL IN |
| Hole Quantity Along Length | 4 |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | RECESS, SAME SHAPE AS THE PERIPHERY |
| Hole Quantity Along Width | 2 |
| Distance From First Hole Centerline to End Along Length | 8.500 INCHES NOMINAL IN |
| Peripheral Shape Style | RECTANGLE, MULTI HOLES |
| Width | 4.250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6010 AND ALUMINUM ALLOY 5052 |
| Hole Diameter | 0.466 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 |
|---|---|
| 203454-1 PRIMARY | Walker Power Systems, Inc. Dba Tiernay Turbines (USA) |
NSN 5340-01-587-1598 is a Cover,access, manufactured by Walker Power Systems, Inc. Dba Tiernay Turbines, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-587-1598 has 1 manufacturer part number on file: 203454-1 (Walker Power Systems, Inc. Dba Tiernay Turbines).
Key specifications for 203454-1: Distance From First Hole Centerline to End Along Width: 0.419 INCHES NOMINAL IN; Length: 9.000 INCHES NOMINAL IN; Hole Quantity Along Length: 4; Mounting Opening Shape Style: UNTHREADED HOLE. 11 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.