The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-086-1734, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-086-1734 |
| Primary Part Number | F2031-4 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Plate Thickness | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Plate Width | 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Surface Treatment | SILVER NUT |
| Precious Material and Location | EXTERNAL SURFACES SILVER |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| F2031-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| F2031-4 | Boeing Distribution Services SAS (FRA) |
| Reference | Meaning |
|---|---|
| F2031-4 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| 3032T67P01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5310-01-086-1734 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-086-1734 has 2 manufacturer part numbers on file: F2031-4 (Howmet Global Fastening Systems Inc), F2031-4 (Boeing Distribution Services SAS).
Key specifications for F2031-4: Plate Thickness: 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Precious Material: SILVER; Plate Width: 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN. 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.