The Stud,plain, cataloged under National Stock Number 5307-00-344-0299, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-344-0299 |
| Primary Part Number | 4026685P9 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Thread Length | 0.540 INCHES MINIMUM AND 0.660 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.543 INCHES MINIMUM AND 0.613 INCHES MAXIMUM NUT THREAD IN |
| Thread Pitch Diameters | +0.2034 TO 0.2590 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 7481 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 Quantity Per Inch | 20 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 | F |
| Part Number | Manufacturer |
|---|---|
| 4026685P9 | Aircraft Components and Fasteners Inc (USA) |
| 4026685P9 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4026685P9 | Thompson Aerospace, Llc Dba Thompson Aerospace Llc (USA) |
| Reference | Meaning |
|---|---|
| 5307PL0896197 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5307-00-344-0299 is a Stud,plain, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-344-0299 has 3 manufacturer part numbers on file: 4026685P9 (Aircraft Components and Fasteners Inc), 4026685P9 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4026685P9 (Thompson Aerospace, Llc Dba Thompson Aerospace Llc).
Key specifications for 4026685P9: Thread Length: 0.540 INCHES MINIMUM AND 0.660 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.543 INCHES MINIMUM AND 0.613 INCHES MAXIMUM NUT THREAD IN; Thread Pitch Diameters: +0.2034 TO 0.2590 INCHES STUD THREAD IN; Material Document and Classification: AMS 7481 ASSN STD SINGLE MATERIAL RESPONSE. 14 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.