The Stud,recessed and Stepped, cataloged under National Stock Number 5307-00-945-4769, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 18 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 | 5307-00-945-4769 |
| Primary Part Number | 634H2 |
| Item Name | Stud,recessed and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Thread Length | 0.580 INCHES MINIMUM STUD THREAD IN |
| Thread Length | 0.510 INCHES MINIMUM NUT THREAD IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +0.2840 TO 0.2855 INCHES STUD THREAD IN |
| Diameter of Recessed Portion of Shank | 0.180 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Length of Recessed Portion of Shank | 0.390 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL |
| Distance Across Flats | 0.200 INCHES NOMINAL IN |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
|---|---|
| 634H2 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 5307-00-945-4769 is a Stud,recessed and Stepped, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-945-4769 has 1 manufacturer part number on file: 634H2 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 634H2: Thread Length: 0.580 INCHES MINIMUM STUD THREAD IN; Thread Length: 0.510 INCHES MINIMUM NUT THREAD IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM; Thread Pitch Diameters: +0.2840 TO 0.2855 INCHES STUD THREAD 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.