The Cover,access, cataloged under National Stock Number 5340-01-277-1166, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-277-1166 |
| Primary Part Number | A51A16116-11 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Inside Width | 3.180 INCHES NOMINAL IN |
| Length | 8.060 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | G-5008 GRUMMAN AEROSPACE CORP MFR REF SINGLE TREATMENT RESPONSE |
| Distance Between Holes Along Length | 1.428 INCHES NOMINAL IN |
| Flange Thickness | 0.040 INCHES NOMINAL IN |
| Inside Corner Radius | 0.250 INCHES NOMINAL IN |
| First Recess Inside Height | 2.780 INCHES NOMINAL IN |
| Hole Quantity Along Length | 10 |
| Distance Between Hole Centerline and First Hole Along Length | 0.800 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 1.700 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | SQUARE OR RECTANGULAR RECESS |
| Hole Quantity Along Width | 4 |
| Surface Treatment | PAINT POLYURETHANE |
| Width | 4.850 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 0.220 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN |
| Body Thickness | 0.040 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 |
|---|---|
| A51A16116-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51A16116-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51A16116-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-01-277-1166 is a Cover,access, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-277-1166 has 1 manufacturer part number on file: A51A16116-11 (Northrop Grumman Systems Corporation).
Key specifications for A51A16116-11: Inside Width: 3.180 INCHES NOMINAL IN; Length: 8.060 INCHES NOMINAL IN; Surface Treatment Document and Classification: G-5008 GRUMMAN AEROSPACE CORP MFR REF SINGLE TREATMENT RESPONSE; Distance Between Holes Along Length: 1.428 INCHES NOMINAL IN. 19 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.