The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-336-5340, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-336-5340 |
| Primary Part Number | F52866-3-7B |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Nut Length | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FIRST END |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.865 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES BASE |
| Mounting Hole Diameter | 0.093 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Nut Counterbore Depth | 0.843 INCHES MINIMUM AND 0.853 INCHES MAXIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Counterbore Diameter | 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM NUT IN |
| Distance From Aperture Center to Mounting Hole Center | 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 1.123 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN |
| Nut Height | 1.000 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE FIRST END |
| Nut Style | PLATE (FLOATING) |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 SHELL |
| Material | STEEL COMP 631 CLIP |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 BASE |
| Nut Mounting Provision | STRAIGHT HOLES |
| 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 |
|---|---|
| F52866-3-7B PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 03A243-3-7 | Howmet Global Fastening Systems Inc (USA) |
| 03A243-3-7 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| Reference | Meaning |
|---|---|
| 03A243-3-7 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 03A243-3-7 | 3/2 Design control — primary reference U.S. Government activity |
| F52866-3-7 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| NS202822-3-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-336-5340 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-336-5340 has 3 manufacturer part numbers on file: F52866-3-7B (Howmet Global Fastening Systems Inc), 03A243-3-7 (Howmet Global Fastening Systems Inc), 03A243-3-7 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for F52866-3-7B: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN; Nut Length: 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FIRST END. 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.