The Cover,access, cataloged under National Stock Number 5340-00-956-0148, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-956-0148 |
| Primary Part Number | 9M142-181-6 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | STRUCTURAL ASSEMBLY,AIRFRAME |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Outside Diameter | 1.810 INCHES NOMINAL IN |
| Bolt Hole Centerline to Nearest Edge Distance | 0.905 INCHES NOMINAL IN |
| Features Provided | SEALING CAPABILITY |
| Securing Device Type | THREADED FASTENER |
| Peripheral Shape Style | ROUND, ONE HOLE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 9M142-181-6 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 9M142-181-6 | 5/9 Secondary reference Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company |
| 9M142-181-6 | 5/9 Secondary reference Kitco Llc |
NSN 5340-00-956-0148 is a Cover,access, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-956-0148 has 1 manufacturer part number on file: 9M142-181-6 (The Boeing Company Div Defense).
Key specifications for 9M142-181-6: FSC Application Data: STRUCTURAL ASSEMBLY,AIRFRAME; Mounting Opening Shape Style: UNTHREADED HOLE; Outside Diameter: 1.810 INCHES NOMINAL IN; Bolt Hole Centerline to Nearest Edge Distance: 0.905 INCHES NOMINAL IN. 8 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.