The Cover,access, cataloged under National Stock Number 5340-00-185-7859, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 11 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-185-7859 |
| Primary Part Number | 11156126 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Length | 7.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 171,1.4.1.5 MIL STD SINGLE TREATMENT RESPONSE |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-B-613,COMP 1,HALF HARD FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT |
| Surface Treatment | NICKEL |
| Peripheral Shape Style | BAND TYPE |
| Width | 2.270 INCHES MINIMUM AND 2.290 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 268 |
| Hole Diameter | 0.110 INCHES NOMINAL IN |
| Body Thickness | 0.200 INCHES MINIMUM AND 0.220 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 |
|---|---|
| 11156126 | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 11156126 PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| Reference | Meaning |
|---|---|
| 11156126 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Simulation Training & Support |
| C01124-3 | 5/9 Secondary reference Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| C01124-3 | 5/9 Secondary reference Oak Crystal Inc |
| 11156126 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5340-00-185-7859 is a Cover,access, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-185-7859 has 2 manufacturer part numbers on file: 11156126 (Lockheed Martin Corporation Div Rotary and Mission Systems), 11156126 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 11156126: Length: 7.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: 171,1.4.1.5 MIL STD SINGLE TREATMENT RESPONSE; Mounting Opening Shape Style: UNTHREADED HOLE; Material Document and Classification: QQ-B-613,COMP 1,HALF HARD FED SPEC SINGLE MATERIAL RESPONSE. 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.