The Cover,access, cataloged under National Stock Number 5340-00-649-8604, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 12 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 | 5340-00-649-8604 |
| Primary Part Number | 204A991P1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Flange Thickness | 0.311 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 4 |
| Inside Corner Radius | 0.250 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Securing Device Type | THREADED FASTENER |
| Inside Diameter | 1.250 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.750 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | STEEL |
| Body Thickness | 0.718 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 |
NSN 5340-00-649-8604 is a Cover,access, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-649-8604 has 2 manufacturer part numbers on file: 204A991P1 (General Electric Company), 204A991P1 (Lockheed Martin Corporation Div Rms).
Key specifications for 204A991P1: Flange Thickness: 0.311 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 4; Inside Corner Radius: 0.250 INCHES NOMINAL IN; 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.