The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-481-6121, 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 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-6121 |
| Primary Part Number | F6031-06 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Plate Thickness | 0.032 INCHES NOMINAL IN |
| Nut Length | 0.859 INCHES MAXIMUM IN |
| Distance From Mounting Hole Center to Base | 0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN |
| Thread Series | UNJC |
| Precious Material | SILVER |
| Plate Width | 0.453 INCHES MAXIMUM IN |
| Temp Rating | 900.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Distance From Base to Center of Aperture | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Nut Height | 0.170 INCHES MAXIMUM IN |
| Surface Treatment | SILVER NUT |
| Surface Treatment | PASSIVATE SHELL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Material | STEEL CORROSION RESISTING SHELL |
| 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 |
|---|---|
| F6031-06 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| F6031-06 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| 401-4695027-11 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-481-6121 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-481-6121 has 1 manufacturer part number on file: F6031-06 (Howmet Global Fastening Systems Inc).
Key specifications for F6031-06: Plate Thickness: 0.032 INCHES NOMINAL IN; Nut Length: 0.859 INCHES MAXIMUM IN; Distance From Mounting Hole Center to Base: 0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN; Thread Series: UNJC. 24 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.