The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-150-3899, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-150-3899 |
| Primary Part Number | 70-806059 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
| Status | ACTIVE |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Length | 0.464 INCHES MINIMUM IN |
| Material Document and Classification | QQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY R-405 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.480 INCHES MINIMUM AND 0.531 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 |
|---|---|
| 70-806059 PRIMARY | General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems (USA) |
| Reference | Meaning |
|---|---|
| 70-806059-1 | 3/9 Design control — primary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
NSN 5305-00-150-3899 is a Screw,cap,socket Head, manufactured by General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-150-3899 has 1 manufacturer part number on file: 70-806059 (General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems).
Key specifications for 70-806059: Width Across Flats: 0.156 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Thread Length: 0.464 INCHES MINIMUM IN; Material Document and Classification: QQ-N-281 CL B FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 15 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.