The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-685-9387, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-685-9387 |
| Primary Part Number | 4-WLNL-S |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Width Across Flats | 0.8125 INCHES NOMINAL IN |
| Thread Series | UNF |
| Temp Rating | -328.00 FAHRENHEIT MINIMUM AND 1200.00 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | SAE/AISI 316/316L INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.5625 INCHES IN |
| Locking Feature | SELF-LOCKING |
| Nut Height | 0.270 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 316 OR STEEL COMP 316L OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 4-WLNL-S PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
NSN 5310-01-685-9387 is a Nut,self-Locking,hexagon, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-685-9387 has 1 manufacturer part number on file: 4-WLNL-S (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for 4-WLNL-S: Width Across Flats: 0.8125 INCHES NOMINAL IN; Thread Series: UNF; Temp Rating: -328.00 FAHRENHEIT MINIMUM AND 1200.00 FAHRENHEIT MAXIMUM DEGF; Material Document and Classification: SAE/AISI 316/316L INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 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.