The Stud,self-Locking, cataloged under National Stock Number 5307-01-330-9918, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 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 | 5307-01-330-9918 |
| Primary Part Number | 720S(.125)-ST-32 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Thread Length | 0.562 INCHES NOMINAL NUT THREAD IN |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Head Length | 0.113 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Material | STEEL CORROSION RESISTING |
| Distance Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.380 INCHES MINIMUM AND 0.384 INCHES MAXIMUM 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 |
|---|---|
| 720S(.125)-ST-32 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5307-01-330-9918 is a Stud,self-Locking, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-330-9918 has 1 manufacturer part number on file: 720S(.125)-ST-32 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 720S(.125)-ST-32: Thread Length: 0.562 INCHES NOMINAL NUT THREAD IN; Style Designator: SELF-LOCKING; Overall Length: 1.000 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND NUT THREAD. 12 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.