The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-045-4732, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fairchild Fasteners Europe - Camloc Gmbh. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-045-4732 |
| Primary Part Number | 0428C20 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fairchild Fasteners Europe - Camloc Gmbh |
| Status | ACTIVE |
| Width Across Flats | 0.400 INCHES MINIMUM AND 0.428 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | FREE-RUNNING ALL METAL DESIGN |
| Nut Height | 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 0428C20 | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 0428C20 | 3/2 Design control — primary reference U.S. Government activity |
| K20666 | 5/9 Secondary reference Ge Aviation Systems Llc Dba Ge Aviation Systems Llc |
| 0428C20 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
NSN 5310-00-045-4732 is a Nut,self-Locking,hexagon, manufactured by Fairchild Fasteners Europe - Camloc Gmbh, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-045-4732 has 1 manufacturer part number on file: 0428C20 (Fairchild Fasteners Europe - Camloc Gmbh).
Key specifications for 0428C20: Width Across Flats: 0.400 INCHES MINIMUM AND 0.428 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.250 INCHES IN. 11 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.