The Screw,machine, cataloged under National Stock Number 5305-01-111-7291, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Caro, Inc. Dba South Bend Lathe. Government technical data includes 13 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 | 5305-01-111-7291 |
| Primary Part Number | PT233H2 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Caro, Inc. Dba South Bend Lathe |
| Status | ACTIVE |
| Head Height | 0.906 INCHES NOMINAL IN |
| Fastener Length | 2.750 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.751 INCHES NOMINAL IN |
| Thread Length | 2.625 INCHES NOMINAL IN |
| Hardness Rating | 37.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | SQUARE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.556 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Screw Material | STEEL COMP 1137 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| PT233H2 PRIMARY | Caro, Inc. Dba South Bend Lathe (USA) |
NSN 5305-01-111-7291 is a Screw,machine, manufactured by Caro, Inc. Dba South Bend Lathe, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-111-7291 has 1 manufacturer part number on file: PT233H2 (Caro, Inc. Dba South Bend Lathe).
Key specifications for PT233H2: Head Height: 0.906 INCHES NOMINAL IN; Fastener Length: 2.750 INCHES NOMINAL IN; Extended Washer Diameter: 0.751 INCHES NOMINAL IN; Thread Length: 2.625 INCHES NOMINAL IN. 13 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.