The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-320-7139, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Globe Fasteners Inc. Government technical data includes 18 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 | 5305-01-320-7139 |
| Primary Part Number | SS-10788-12 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Globe Fasteners Inc |
| Status | ACTIVE |
| Head Height | 0.165 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Fastener Length | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM B633 TY 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | ZINC OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| 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 |
|---|---|
| SS-10788-12 PRIMARY | Globe Fasteners Inc (USA) |
NSN 5305-01-320-7139 is a Screw,externally Relieved Body, manufactured by Globe Fasteners Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-320-7139 has 1 manufacturer part number on file: SS-10788-12 (Globe Fasteners Inc).
Key specifications for SS-10788-12: Head Height: 0.165 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN; Fastener Length: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM B633 TY 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN. 18 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.