The Screw,shoulder, cataloged under National Stock Number 5305-01-663-9958, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Qinetiq North America, Inc. Dba Technology Systems Group Div Qinetiq North America Inc, Technology Solutions Gr. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-663-9958 |
| Primary Part Number | 1011685030 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Qinetiq North America, Inc. Dba Technology Systems Group Div Qinetiq North America Inc, Technology Solutions Gr |
| Status | ACTIVE |
| Width Across Flats | 0.0937 INCHES NOMINAL IN |
| Head Height | 0.109 INCHES NOMINAL IN |
| Fastener Length | 0.4375 INCHES NOMINAL IN |
| Shoulder Length | 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM ALL SHOULDERS IN |
| Shoulder Diameter | 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM ALL SHOULDERS IN |
| Thread Length | 0.1875 INCHES NOMINAL IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.3125 INCHES NOMINAL 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 |
|---|---|
| 1011685030 PRIMARY | Qinetiq North America, Inc. Dba Technology Systems Group Div Qinetiq North America Inc, Technology Solutions Gr (USA) |
| 90337A183 | Mcmaster-Carr Supply Company (USA) |
NSN 5305-01-663-9958 is a Screw,shoulder, manufactured by Qinetiq North America, Inc. Dba Technology Systems Group Div Qinetiq North America Inc, Technology Solutions Gr, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-663-9958 has 2 manufacturer part numbers on file: 1011685030 (Qinetiq North America, Inc. Dba Technology Systems Group Div Qinetiq North America Inc, Technology Solutions Gr), 90337A183 (Mcmaster-Carr Supply Company).
Key specifications for 1011685030: Width Across Flats: 0.0937 INCHES NOMINAL IN; Head Height: 0.109 INCHES NOMINAL IN; Fastener Length: 0.4375 INCHES NOMINAL IN; Shoulder Length: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM ALL SHOULDERS IN. 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.