The Stud,shouldered, cataloged under National Stock Number 5307-00-235-2779, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div Chelsea Products Division. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-235-2779 |
| Primary Part Number | 3784809 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Parker Hannifin Corporation Div Chelsea Products Division |
| Status | ACTIVE |
| Thread Length | 0.562 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.562 INCHES NOMINAL NUT THREAD IN |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED |
| Thread Pitch Diameters | +0.3382 TO 0.3414 INCHES STUD THREAD IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.375 INCHES NUT THREAD IN |
| Shoulder Diameter | 0.400 INCHES MINIMUM AND 0.402 INCHES MAXIMUM IN |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | STEEL |
| Shoulder Length | 0.250 INCHES NOMINAL IN |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNS STUD THREAD |
| 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 |
|---|---|
| 3784809 PRIMARY | Parker Hannifin Corporation Div Chelsea Products Division (USA) |
| Reference | Meaning |
|---|---|
| 802CX300 | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Corporation Div Chelsea Products Division |
| 802CX790 | 5/9 Secondary reference Parker Hannifin Corporation Div Chelsea Products Division |
| 378480-9 | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Corporation Div Chelsea Products Division |
NSN 5307-00-235-2779 is a Stud,shouldered, manufactured by Parker Hannifin Corporation Div Chelsea Products Division, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-235-2779 has 1 manufacturer part number on file: 3784809 (Parker Hannifin Corporation Div Chelsea Products Division).
Key specifications for 3784809: Thread Length: 0.562 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.562 INCHES NOMINAL NUT THREAD IN; Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Style Designator: SHOULDERED. 17 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.