The Stud,shouldered, cataloged under National Stock Number 5307-00-482-1956, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-482-1956 |
| Primary Part Number | C5779-17 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-STD-171 MIL STD 1ST TREATMENT RESPONSE OVERALL |
| Surface Treatment Document and Classification | QQ-C-320 FED SPEC 2ND TREATMENT RESPONSE SHOULDER BEARING SURFACE |
| Cotter Pin Hole Diameter | 0.078 INCHES NOMINAL SECOND HOLE IN |
| Nut End Shank Diameter | 0.3122 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM IN |
| Thread Length | 0.315 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.315 INCHES NOMINAL STUD THREAD IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | AMS 5643 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 | 0.312 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.4376 INCHES MINIMUM AND 0.4378 INCHES MAXIMUM IN |
| Stud End Shank Diameter | 0.3122 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Surface Treatment | CHROMIUM SHOULDER BEARING SURFACE |
| Nut End Shank Length | 0.285 INCHES NOMINAL IN |
| Stud End Shank Length | 0.285 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Material | STEEL CORROSION RESISTING |
| Shoulder Length | 2.688 INCHES MINIMUM AND 2.690 INCHES MAXIMUM IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.145 INCHES NOMINAL FIRST HOLE IN |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.145 INCHES NOMINAL SECOND 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 |
|---|---|
| C5779-17 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| C5779-17 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-00-482-1956 is a Stud,shouldered, manufactured by Tactair Fluid Controls Inc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-482-1956 has 1 manufacturer part number on file: C5779-17 (Tactair Fluid Controls Inc).
Key specifications for C5779-17: Surface Treatment Document and Classification: MIL-STD-171 MIL STD 1ST TREATMENT RESPONSE OVERALL; Surface Treatment Document and Classification: QQ-C-320 FED SPEC 2ND TREATMENT RESPONSE SHOULDER BEARING SURFACE; Cotter Pin Hole Diameter: 0.078 INCHES NOMINAL SECOND HOLE IN; Nut End Shank Diameter: 0.3122 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM IN. 28 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.