The Stud,plain, cataloged under National Stock Number 5307-00-407-2175, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Satair A/s. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-00-407-2175 |
| Primary Part Number | 25D-16 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Cotter Pin Hole Diameter | 0.074 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| Thread Length | 0.755 INCHES MINIMUM AND 0.805 INCHES MAXIMUM STUD THREAD IN |
| Thread Length | 0.702 INCHES MINIMUM AND 0.738 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +0.2208 TO 0.2221 INCHES STUD THREAD IN |
| Material Document and Classification | AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6300 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 3RD 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 |
| Surface Treatment | CADMIUM OVERALL |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 8735 OR STEEL OR STEEL COMP 8740 |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.090 INCHES NOMINAL 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 |
|---|---|
| 25D-16 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| 25D-16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5307-00-407-2175 is a Stud,plain, manufactured by Satair A/s, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-407-2175 has 1 manufacturer part number on file: 25D-16 (Satair A/s).
Key specifications for 25D-16: Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Cotter Pin Hole Diameter: 0.074 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN; Thread Length: 0.755 INCHES MINIMUM AND 0.805 INCHES MAXIMUM STUD THREAD IN; Thread Length: 0.702 INCHES MINIMUM AND 0.738 INCHES MAXIMUM NUT THREAD IN. 18 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.