The Cover,access, cataloged under National Stock Number 5340-00-734-6898, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-734-6898 |
| Primary Part Number | A3866D550 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Flange Thickness | 0.190 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 8 |
| Inside Corner Radius | 0.120 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Outside Diameter | 5.690 INCHES NOMINAL IN |
| Features Provided | SEALING CAPABILITY |
| Securing Device Type | THREADED FASTENER |
| Inside Diameter | 3.000 INCHES NOMINAL IN |
| Bolt Circle Diameter | 4.750 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Hole Diameter | 0.410 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 5340-00-734-6898 is a Cover,access, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-734-6898 has 2 manufacturer part numbers on file: A3866D550 (Meritor Heavy Vehicle Systems, Llc), A3866D550 (Meritor Industrial Products, Llc).
Key specifications for A3866D550: Flange Thickness: 0.190 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 8; Inside Corner Radius: 0.120 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.