The Stud,shouldered, cataloged under National Stock Number 5307-01-286-2655, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 23 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 | 5307-01-286-2655 |
| Primary Part Number | 647-3268-001 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Nut End Shank Diameter | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.320 INCHES MINIMUM STUD THREAD IN |
| Thread Length | 0.630 INCHES MINIMUM NUT THREAD IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | QQ-B-626 FED SPEC 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 |
| Second Shoulder Length | 0.050 INCHES NOMINAL IN |
| Stud End Shank Diameter | 0.250 INCHES NOMINAL IN |
| Nut End Shank Length | 0.404 INCHES NOMINAL IN |
| Stud End Shank Length | 0.061 INCHES NOMINAL IN |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 28 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | COPPER ALLOY 360 |
| Second Shoulder Diameter | 0.312 INCHES NOMINAL IN |
| Distance Across Flats | 0.312 INCHES NOMINAL IN |
| Shoulder Length | 0.300 INCHES NOMINAL IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF 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 |
|---|---|
| 647-3268-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5307-01-286-2655 is a Stud,shouldered, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-286-2655 has 1 manufacturer part number on file: 647-3268-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 647-3268-001: Nut End Shank Diameter: 0.250 INCHES NOMINAL IN; Thread Length: 0.320 INCHES MINIMUM STUD THREAD IN; Thread Length: 0.630 INCHES MINIMUM NUT THREAD IN; Style Designator: SHOULDERED. 23 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.