The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-00-174-3985, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Alfa Laval Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-00-174-3985 |
| Primary Part Number | A1285PC1 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Alfa Laval Inc |
| Status | ACTIVE |
| Nut End Shank Diameter | 0.312 INCHES NOMINAL IN |
| Thread Length | 0.625 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.420 INCHES NOMINAL STUD THREAD IN |
| Style Designator | SHOULDERED AND STEPPED |
| Material Document and Classification | QQ-S-763,CLASS 6,TYPE C FED SPEC 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 | 0.375 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.498 INCHES NOMINAL IN |
| Nut End Shank Length | 0.313 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 4A STUD THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | STEEL COMP 416 |
| Shoulder Length | 0.080 INCHES NOMINAL IN |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD 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 |
|---|---|
| A1285PC1 PRIMARY | Alfa Laval Inc (USA) |
| Reference | Meaning |
|---|---|
| 394713PC1 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5307-00-174-3985 is a Stud,shouldered and Stepped, manufactured by Alfa Laval Inc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-174-3985 has 1 manufacturer part number on file: A1285PC1 (Alfa Laval Inc).
Key specifications for A1285PC1: Nut End Shank Diameter: 0.312 INCHES NOMINAL IN; Thread Length: 0.625 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.420 INCHES NOMINAL STUD THREAD IN; Style Designator: SHOULDERED AND STEPPED. 19 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.