The Stud,shouldered, cataloged under National Stock Number 5307-01-026-0887, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-026-0887 |
| Primary Part Number | 494843 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Cotter Pin Hole Diameter | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN |
| Thread Length | 0.390 INCHES MINIMUM AND 0.430 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.540 INCHES MINIMUM AND 0.640 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Shoulder Diameter | 0.395 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Stud End Shank Diameter | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Class | 3A STUD THREAD A |
| Thread Class | 1A NUT THREAD A |
| Thread Quantity Per Inch | A24 LOCATION NOT OTHERWISE SPECIFIED |
| Shoulder Length | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.090 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| 494843 | Thompson Aerospace, Llc Dba Thompson Aerospace Llc (USA) |
| 494843 | Precision Speed Manufacturing, Llc (USA) |
| 494843 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 494843 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5307-01-026-0887 is a Stud,shouldered, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-026-0887 has 3 manufacturer part numbers on file: 494843 (Thompson Aerospace, Llc Dba Thompson Aerospace Llc), 494843 (Precision Speed Manufacturing, Llc), 494843 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-392-0751. Verify interchangeability with system specifications before substitution.
Key specifications for 494843: Cotter Pin Hole Diameter: 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN; Thread Length: 0.390 INCHES MINIMUM AND 0.430 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.540 INCHES MINIMUM AND 0.640 INCHES MAXIMUM NUT THREAD IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 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.