The Cover,access, cataloged under National Stock Number 5340-01-144-3777, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-144-3777 |
| Primary Part Number | CTS137AA-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Corner Radius | 0.313 INCHES NOMINAL IN |
| Length | 2.500 INCHES NOMINAL IN |
| Distance Between Holes Along Length | 1.875 INCHES NOMINAL IN |
| Flange Thickness | 0.094 INCHES NOMINAL IN |
| First Recess Inside Height | 1.406 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Body Radius | 0.750 INCHES NOMINAL IN |
| Inside Diameter | 1.000 INCHES NOMINAL IN |
| Peripheral Shape Style | DIAMOND, ROUNDED CORNERS, TWO HOLES |
| Width | 1.500 INCHES NOMINAL IN |
| Material | ZINC ALLOY |
| Hole Diameter | 0.250 INCHES NOMINAL IN |
| Body Thickness | 0.094 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 |
| Part Number | Manufacturer |
|---|---|
| CTS137AA-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| CTS137AA | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 5340-01-144-3777 is a Cover,access, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-144-3777 has 1 manufacturer part number on file: CTS137AA-1 (The Boeing Company Div Defense).
Key specifications for CTS137AA-1: Corner Radius: 0.313 INCHES NOMINAL IN; Length: 2.500 INCHES NOMINAL IN; Distance Between Holes Along Length: 1.875 INCHES NOMINAL IN; Flange Thickness: 0.094 INCHES NOMINAL IN. 14 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.