The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-221-2306, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-221-2306 |
| Primary Part Number | M7078-7 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Fastener Length | 0.656 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| First Diameter From Head | 0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.406 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M7078-7 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 5305-01-221-2306 is a Screw,externally Relieved Body, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-221-2306 has 1 manufacturer part number on file: M7078-7 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for M7078-7: Fastener Length: 0.656 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL IN; First Diameter From Head: 0.118 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.