The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-257-3231, 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 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-257-3231 |
| Primary Part Number | FF6010L-10-H |
| 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 | 0.390 INCHES NOMINAL IN |
| Nut Length | 0.572 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS 5085 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BASE |
| Material Document and Classification | ASTM A682 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A684 ASSN STD SINGLE MATERIAL RESPONSE BRACKET |
| Nut Counterbore Depth | 0.357 INCHES MINIMUM AND 0.377 INCHES MAXIMUM BASE IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.245 INCHES NOMINAL BASE IN |
| Pilot Diameter | 0.270 INCHES MAXIMUM IN |
| Pilot Length | 0.316 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.612 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 BASE |
| Material | STEEL COMP 1075 BRACKET |
| Material | STEEL COMP 1050 NUT |
| 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 |
|---|---|
| FF6010L-10-H PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| 13084023-4 | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| FF6010L-10-H | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-257-3231 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 5310-01-257-3231 has 2 manufacturer part numbers on file: FF6010L-10-H (Huck International, Inc. Div Huck Products Division), 13084023-4 (Lockheed Martin Corporation).
Key specifications for FF6010L-10-H: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.390 INCHES NOMINAL IN; Nut Length: 0.572 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 24 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.