The Cap,protective,nut and Bolt Hea, cataloged under National Stock Number 5340-01-563-9106, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-563-9106 |
| Primary Part Number | 74A331661-2012 |
| Item Name | Cap,protective,nut and Bolt Hea |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Overall Diameter | 0.186 INCHES MINIMUM AND 0.188 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 |
|---|---|
| 74A331661-2012 | The Boeing Company Div Defense (USA) |
| 74A331661-2012 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 74A331661-2012 | 5/9 Secondary reference Pacific Contours Corporation Dba Pacific Contours Corp |
NSN 5340-01-563-9106 is a Cap,protective,nut and Bolt Hea, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-563-9106 has 2 manufacturer part numbers on file: 74A331661-2012 (The Boeing Company Div Defense), 74A331661-2012 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 74A331661-2012: Overall Diameter: 0.186 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: (INAVY)CAP MACHINED OPP;CAP, PROTECTIVE, NUT RH Y615; End Item Identification: F18 AIRCRAFT SECTION, CAP, FORMER-FUS, PRECISION FORGING, Y615.000. 1 specification is 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.