The Cover,access, cataloged under National Stock Number 5340-01-184-3759, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Aimtron Systems, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-184-3759 |
| Primary Part Number | 504594-2 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Aimtron Systems, Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A |
| Flange Thickness | 0.125 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 4 |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Inside Diameter | 0.750 INCHES NOMINAL IN |
| Bolt Circle Diameter | 1.125 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | ALUMINUM ALLOY 2024 |
| Hole Diameter | 0.138 INCHES MINIMUM AND 0.146 INCHES MAXIMUM 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 |
|---|---|
| 504594-2 PRIMARY | Aimtron Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 504594-2 | 5/9 Secondary reference Cardion Inc |
NSN 5340-01-184-3759 is a Cover,access, manufactured by Aimtron Systems, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-184-3759 has 1 manufacturer part number on file: 504594-2 (Aimtron Systems, Llc).
Key specifications for 504594-2: Surface Treatment Document and Classification: MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A; Flange Thickness: 0.125 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 4; Mounting Opening Shape Style: UNTHREADED HOLE. 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.