The Stud,shouldered, cataloged under National Stock Number 5307-00-839-3202, 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 16 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5307-00-839-3202 |
| Primary Part Number | 578295 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Thread Length | 0.494 INCHES MINIMUM AND 0.534 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 28 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | TITANIUM ALLOY |
| Distance Across Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Shoulder Length | 0.152 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) STUD THREAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) NUT 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 |
|---|---|
| 578295 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 578295 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 578295 | 5/2 Secondary reference U.S. Government activity |
| 578295 | 5/2 Secondary reference U.S. Government activity |
NSN 5307-00-839-3202 is a Stud,shouldered, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-839-3202 has 2 manufacturer part numbers on file: 578295 (Sps Technologies, Llc Dba PB Fasteners), 578295 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 578295: Thread Length: 0.494 INCHES MINIMUM AND 0.534 INCHES MAXIMUM NUT THREAD IN; Style Designator: SHOULDERED; Material Document and Classification: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 1.632 INCHES NOMINAL IN. 16 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.