The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-450-9830, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Div Huck Products Division. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-450-9830 |
| Primary Part Number | HF91-L-12-E-1 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Huck International, Inc. Div Huck Products Division |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.450 INCHES NOMINAL IN |
| Nut Length | 0.635 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE FLANGE |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | ASTM-A-493 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A-493 ASSN STD 2ND MATERIAL RESPONSE OR ASTM-A-493 ASSN STD 3RD MATERIAL RESPONSE OR ASTM-A-493 ASSN STD 4TH MATERIAL RESPONSE OR ASTM-A-493 ASSN STD 5TH MATERIAL RESPONSE FLANGE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Pilot Diameter | 0.300 INCHES NOMINAL IN |
| Pilot Length | 0.223 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.278 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE FLANGE |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 FLANGE |
| 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 |
|---|---|
| HF91-L-12-E-1 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| Reference | Meaning |
|---|---|
| HF91-L-12-E-1 | 5/9 Secondary reference U.S. Government activity |
| 3D0082-4E1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-450-9830 is a Nut,self-Locking,spline, manufactured by Huck International, Inc. Div Huck Products Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-450-9830 has 1 manufacturer part number on file: HF91-L-12-E-1 (Huck International, Inc. Div Huck Products Division).
Key specifications for HF91-L-12-E-1: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.450 INCHES NOMINAL IN; Nut Length: 0.635 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TY2, CL2 FED SPEC SINGLE TREATMENT RESPONSE FLANGE. 17 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.