The Stud,stepped, cataloged under National Stock Number 5307-00-820-9985, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-820-9985 |
| Primary Part Number | 389519P6 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Shank Diameter | 0.279 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN |
| Surface Finish | 63.0 MICROINCHES SHANK |
| Thread Length | 0.650 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.620 INCHES MINIMUM AND 0.704 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Style Designator | STEPPED |
| Thread Pitch Diameters | +0.3452 TO 0.3467 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 7456 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | STEEL |
| 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 |
|---|---|
| 389519P6 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 389519P-006 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 389519P006 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5307-00-820-9985 is a Stud,stepped, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-820-9985 has 3 manufacturer part numbers on file: 389519P6 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 389519P-006 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 389519P006 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 389519P6: Shank Diameter: 0.279 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN; Surface Finish: 63.0 MICROINCHES SHANK; Thread Length: 0.650 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.620 INCHES MINIMUM AND 0.704 INCHES MAXIMUM NUT 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.