The Screw,shoulder, cataloged under National Stock Number 5305-01-591-3863, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Technology Corp. Government technical data includes 16 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 | 5305-01-591-3863 |
| Primary Part Number | FTD7049HS6-3-9 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Technology Corp |
| Status | ACTIVE |
| Width Across Flats | 0.1094 INCHES MINIMUM AND 0.1116 INCHES MAXIMUM IN |
| Head Height | 0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN |
| Fastener Length | 0.561 INCHES MINIMUM AND 0.597 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.485 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.218 INCHES MINIMUM AND 0.226 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 |
|---|---|
| FTD7049HS6-3-9 PRIMARY | Fastener Technology Corp (USA) |
NSN 5305-01-591-3863 is a Screw,shoulder, manufactured by Fastener Technology Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-591-3863 has 1 manufacturer part number on file: FTD7049HS6-3-9 (Fastener Technology Corp).
Key specifications for FTD7049HS6-3-9: Width Across Flats: 0.1094 INCHES MINIMUM AND 0.1116 INCHES MAXIMUM IN; Head Height: 0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN; Fastener Length: 0.561 INCHES MINIMUM AND 0.597 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 16 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.