The Screw,shoulder, cataloged under National Stock Number 5305-01-601-4372, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 20 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 | 5305-01-601-4372 |
| Primary Part Number | 93996A726 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 0.093 INCHES NOMINAL IN |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 0.815 INCHES NOMINAL IN |
| Shoulder Length | 0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM ALL SHOULDERS IN |
| Shoulder Diameter | 0.189 INCHES MINIMUM AND 0.190 INCHES MAXIMUM ALL SHOULDERS IN |
| Thread Length | 0.190 INCHES NOMINAL IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Hardness Rating | 20.0 ROCKWELL C MINIMUM OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH THREADS |
| Minimum Tensile Strength | 105000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC NYLON LOCKING FEATURE |
| Material | STEEL PROPERTY CLASS 18.8 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.312 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 |
|---|---|
| 93996A726 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-601-4372 is a Screw,shoulder, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-601-4372 has 1 manufacturer part number on file: 93996A726 (Mcmaster-Carr Supply Co).
Key specifications for 93996A726: Width Across Flats: 0.093 INCHES NOMINAL IN; Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 0.815 INCHES NOMINAL IN; Shoulder Length: 0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM ALL SHOULDERS IN. 20 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.