The Stud,self-Locking, cataloged under National Stock Number 5307-01-446-6698, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Shields Co Magnetics. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-446-6698 |
| Primary Part Number | NCS-428-4-20 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Shields Co Magnetics |
| Status | ACTIVE |
| Thread Length | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 0.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN |
| Head Length | 0.117 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Thread Quantity Per Inch | 28 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL COMP 303 |
| Distance Across Flats | 0.438 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| Head Diameter | 0.384 INCHES NOMINAL 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 |
|---|---|
| NCS-428-4-20 PRIMARY | Shields Co Magnetics (USA) |
| Reference | Meaning |
|---|---|
| 860336-342 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| 860336-342 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5307-01-446-6698 is a Stud,self-Locking, manufactured by Shields Co Magnetics, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-446-6698 has 1 manufacturer part number on file: NCS-428-4-20 (Shields Co Magnetics).
Key specifications for NCS-428-4-20: Thread Length: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN; Style Designator: SELF-LOCKING; Overall Length: 0.722 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED. 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.