The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-01-495-8743, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Crane Carrier Company, Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-495-8743 |
| Primary Part Number | 219-0103 |
| Item Name | Nut,plain,castellated,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Crane Carrier Company, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.000 INCHES IN |
| Nut Height | 1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | CASTELLATED, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| CF41NU-164 | Lrg Fastener Corporation Dba Continental-Aero (USA) |
| 219-0103 PRIMARY | Crane Carrier Company, Llc (USA) |
NSN 5310-01-495-8743 is a Nut,plain,castellated,hexagon, manufactured by Crane Carrier Company, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-495-8743 has 2 manufacturer part numbers on file: CF41NU-164 (Lrg Fastener Corporation Dba Continental-Aero), 219-0103 (Crane Carrier Company, Llc).
Key specifications for 219-0103: Width Across Flats: 1.602 INCHES MINIMUM AND 1.632 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.000 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.