The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-191-8329, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Mission Systems, Inc.. Government technical data includes 17 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 | 5305-00-191-8329 |
| Primary Part Number | 70-161783-1 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Dynamics Mission Systems, Inc. |
| Status | ACTIVE |
| Fastener Length | 0.406 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Thread Length | 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763,300 SERIES FED SPEC 1ST MATERIAL RESPONSE OR 66,300 SERIES FED STD 1ST MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.091 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OR STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.244 INCHES MINIMUM AND 0.279 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 |
|---|---|
| 70-161783-1 PRIMARY | General Dynamics Mission Systems, Inc. (USA) |
NSN 5305-00-191-8329 is a Screw,externally Relieved Body, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-00-191-8329 has 1 manufacturer part number on file: 70-161783-1 (General Dynamics Mission Systems, Inc.).
Key specifications for 70-161783-1: Fastener Length: 0.406 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Thread Length: 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763,300 SERIES FED SPEC 1ST MATERIAL RESPONSE OR 66,300 SERIES FED STD 1ST MATERIAL RESPONSE OR COMP 16-18 OR 18-8 ASSN STD 2ND MATERIAL RESPONSE OVERALL; First Diameter From Head: 0.091 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN. 17 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.