The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-342-8594, 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 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-342-8594 |
| Primary Part Number | HF91-L-10-E-3 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Huck International, Inc. Div Huck Products Division |
| Status | ACTIVE |
| Width Across Flats | 0.572 INCHES NOMINAL IN |
| Nut Length | 0.390 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BOSS |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BRACKET |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE BRACKET |
| Material Document and Classification | ASTM-A493 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A493 ASSN STD 2ND MATERIAL RESPONSE OR ASTM-A493 ASSN STD 3RD MATERIAL RESPONSE BOSS |
| Nut Counterbore Depth | 0.128 INCHES NOMINAL NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.223 INCHES NOMINAL NUT IN |
| Pilot Diameter | 0.240 INCHES NOMINAL IN |
| Pilot Length | 0.223 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.580 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE NUT |
| Surface Treatment | CADMIUM AND CHROMATE BRACKET |
| Surface Treatment | CADMIUM AND CHROMATE BOSS |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 631 BRACKET |
| Material | IRON ALLOY 651 NUT |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 347 BOSS |
| 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-10-E-3 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| Reference | Meaning |
|---|---|
| HF91-L-10-E-3 | 5/9 Secondary reference U.S. Government activity |
| 3D0082-3E3 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-342-8594 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 5310-01-342-8594 has 1 manufacturer part number on file: HF91-L-10-E-3 (Huck International, Inc. Div Huck Products Division).
Key specifications for HF91-L-10-E-3: Width Across Flats: 0.572 INCHES NOMINAL IN; Nut Length: 0.390 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BOSS. 27 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.