The Screw,machine, cataloged under National Stock Number 5305-01-368-0094, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-368-0094 |
| Primary Part Number | HT183-8-19 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Bearing Surface of Head Surface Finish | 32.0 MICROINCHES |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 1.953 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Thread Length | 0.781 INCHES NOMINAL IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Shank Surface Finish | 32.0 MICROINCHES |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Thread Surface Finish | 32.0 MICROINCHES |
| Screw Material | STEEL COMP 8740 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 6150 |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.711 INCHES MINIMUM AND 0.759 INCHES MAXIMUM 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 |
|---|---|
| HT183-8-19 PRIMARY | Hi-Shear Corporation (USA) |
| HT183-8-19 | Howmet Global Fastening Systems Inc (USA) |
| HT183-8-19 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| HT183-8-19 | 5/9 Secondary reference U.S. Government activity |
| HT183-8-19 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-368-0094 is a Screw,machine, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-368-0094 has 3 manufacturer part numbers on file: HT183-8-19 (Hi-Shear Corporation), HT183-8-19 (Howmet Global Fastening Systems Inc), HT183-8-19 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for HT183-8-19: Bearing Surface of Head Surface Finish: 32.0 MICROINCHES; Screw Surface Treatment: CADMIUM; Fastener Length: 1.953 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN; Thread Length: 0.781 INCHES NOMINAL 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.