The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-256-5835, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-256-5835 |
| Primary Part Number | 60-055744-06 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Width Across Flats | 0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Nut Length | 0.405 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 11,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Nut Counterbore Depth | 0.025 INCHES NOMINAL BOSS IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Counterbore Diameter | 0.312 INCHES MINIMUM AND 0.332 INCHES MAXIMUM BOSS IN |
| Pilot Diameter | 0.202 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN |
| Pilot Length | 0.084 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.273 INCHES MINIMUM AND 0.303 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | SPLINE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 OVERALL |
| 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 |
|---|---|
| 60-055744-06 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| FFN6010L6A | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 60-055744-06 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| FFN6010L6A | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-01-256-5835 is a Nut,self-Locking,spline, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-256-5835 has 2 manufacturer part numbers on file: 60-055744-06 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), FFN6010L6A (Huck International, Inc).
Key specifications for 60-055744-06: Lubrication: DRY FILM LUBRICANT; Width Across Flats: 0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Nut Length: 0.405 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 11,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.