The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-330-3398, 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 Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-330-3398 |
| Primary Part Number | 03A243-3-23 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Plate Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Nut Length | 1.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| 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 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| 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 BASE 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 BASE 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 | 0.730 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Material | STEEL COMP 631 SPRING |
| 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 |
|---|---|
| 03A243-3-23 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| F52866-3-23 | Howmet Global Fastening Systems Inc (USA) |
| 03A243-3-23 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| F52866-3-23B | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| NS202822-3-23 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-330-3398 is a Nut,self-Locking,plate, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-330-3398 has 4 manufacturer part numbers on file: 03A243-3-23 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), F52866-3-23 (Howmet Global Fastening Systems Inc), 03A243-3-23 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), F52866-3-23B (Howmet Global Fastening Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-352-2633. Verify interchangeability with system specifications before substitution.
Key specifications for 03A243-3-23: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN; Nut Length: 1.375 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 25 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.