The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-341-9371, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-341-9371 |
| Primary Part Number | HF91-L-10-A-3 |
| 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 |
| Nut Length | 0.572 INCHES NOMINAL IN |
| 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 ALL MATERIAL RESPONSES BOSS |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Pilot Diameter | 0.223 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Pilot Length | 0.099 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.277 INCHES NOMINAL IN |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Material | STEEL COMP 631 BRACKET |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 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-A-3 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| Reference | Meaning |
|---|---|
| HF91-L-10-A-3 | 5/9 Secondary reference U.S. Government activity |
| 3D0082-3A3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-341-9371 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 5310-01-341-9371 has 1 manufacturer part number on file: HF91-L-10-A-3 (Huck International, Inc. Div Huck Products Division).
Key specifications for HF91-L-10-A-3: Lubrication: DRY FILM LUBRICANT; Nut Length: 0.572 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE NUT. 18 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.