The Screw,machine, cataloged under National Stock Number 5305-01-696-9915, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc Div City of Industry Operations. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-696-9915 |
| Primary Part Number | NAS1790C4-3AX |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc Div City of Industry Operations |
| Status | ACTIVE |
| Head Height | 0.111 INCHES NOMINAL IN |
| Fastener Length | 0.5975 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS 5731,5732,5737 OR 5853 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.425 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1790 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | STEEL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.506 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 |
|---|---|
| NAS1790C4-3AX | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| NAS1790C4-3AX | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| NAS1790C4-3AX | Sps Technologies, Llc Dba PB Fasteners (USA) |
| NAS1790C4-3AX | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| NAS1790C4-3AX | West Coast Aerospace, Inc. (USA) |
| NAS1790C4-3AX | Howmet Global Fastening Systems Inc (USA) |
| NAS1790C4-3AX | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| NAS1790C4-3AX | Federal Manufacturing Corp (USA) |
| NAS1790C4-3AX | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| NAS1790C4-3AX | Hi-Shear Corporation (USA) |
| NAS1790C4-3AX | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| NAS1790C4-3AX | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1790C4-3AX | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
| NAS1790C4-3AX | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-696-9915 is a Screw,machine, manufactured by Howmet Global Fastening Systems Inc Div City of Industry Operations, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-696-9915 has 12 manufacturer part numbers on file: NAS1790C4-3AX (Howmet Global Fastening Systems Inc Div City of Industry Operations), NAS1790C4-3AX (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), NAS1790C4-3AX (Sps Technologies, Llc Dba PB Fasteners), NAS1790C4-3AX (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), NAS1790C4-3AX (West Coast Aerospace, Inc.) and 7 more.
Key specifications for NAS1790C4-3AX: Head Height: 0.111 INCHES NOMINAL IN; Fastener Length: 0.5975 INCHES MINIMUM AND 0.6275 INCHES MAXIMUM IN; Screw Material Document and Classification: AMS 5731,5732,5737 OR 5853 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.425 INCHES NOMINAL IN. 15 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.