The Stud,locked in, cataloged under National Stock Number 5307-01-541-4490, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 14 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 | 5307-01-541-4490 |
| Primary Part Number | KNHS820JT25 |
| Item Name | Stud,locked in |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Distance From Serrated Portion to Nut End | 1.562 INCHES NOMINAL IN |
| Thread Length | 0.680 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.780 INCHES NOMINAL NUT THREAD IN |
| Style Designator | LOCKED IN |
| Distance From Serrated Portion to End of Stud Thread | 0.380 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.500 INCHES NUT THREAD IN |
| Distance From Serrated Portion to Stud End | 0.680 INCHES NOMINAL IN |
| Locking Feature | KEY INSERTS |
| Thread Class | 3A NUT THREAD A A |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| KNHS820JT25 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5307-01-541-4490 is a Stud,locked in, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-541-4490 has 1 manufacturer part number on file: KNHS820JT25 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for KNHS820JT25: Distance From Serrated Portion to Nut End: 1.562 INCHES NOMINAL IN; Thread Length: 0.680 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.780 INCHES NOMINAL NUT THREAD IN; Style Designator: LOCKED IN. 14 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.