The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-565-2298, 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 14 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 | 5305-01-565-2298 |
| Primary Part Number | 92949A585 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 0.187 INCHES NOMINAL IN |
| Head Height | 0.166 INCHES NOMINAL IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Hardness Rating | 70.0 ROCKWELL B MINIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | BUTTON |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 70000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.547 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 |
|---|---|
| 92949A585 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| AES18U312A25CH2A12 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-565-2298 is a Screw,cap,socket Head, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-565-2298 has 2 manufacturer part numbers on file: 92949A585 (Mcmaster-Carr Supply Co), AES18U312A25CH2A12 (The American Society of Mechanical Engineers).
Key specifications for 92949A585: Width Across Flats: 0.187 INCHES NOMINAL IN; Head Height: 0.166 INCHES NOMINAL IN; Fastener Length: 1.250 INCHES NOMINAL IN; Hardness Rating: 70.0 ROCKWELL B MINIMUM OVERALL. 14 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.