The Screw,shoulder, cataloged under National Stock Number 5305-01-568-0455, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-568-0455 |
| Primary Part Number | 92012A537 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Shoulder Length | 0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM OVERALL IN |
| Shoulder Diameter | 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM OVERALL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Shoulder Shape | ROUND OVERALL |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 144000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.375 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 |
|---|---|
| 92012A537 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 3924670C1 | 3/1 Design control — primary reference Nd Defense Llc |
NSN 5305-01-568-0455 is a Screw,shoulder, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-568-0455 has 1 manufacturer part number on file: 92012A537 (Mcmaster-Carr Supply Co).
Key specifications for 92012A537: Width Across Flats: 0.125 INCHES NOMINAL IN; Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Shoulder Length: 0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM OVERALL IN. 18 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.