The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-143-3391, 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 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-143-3391 |
| Primary Part Number | FM1968-050H |
| 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 | 1.10 MILLIMETERS NOMINAL MM |
| Thread Tolerance Class | 4H5H INTERNAL |
| Nut Length | 24.6 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | MIL-N-25027 MIL SPEC SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE SHELL |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE WASHER |
| Thread Series | ISO M |
| Thread Pitch in Millimeters | 0.80 |
| Plate Width | 14.4 MILLIMETERS NOMINAL MM |
| Temp Rating | -55.0 CELSIUS MINIMUM AND 230.0 CELSIUS MAXIMUM DEGC |
| Mounting Hole Arrangement Style | 2 HOLES |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS3304 ASSN STD SINGLE MATERIAL RESPONSE SEAL |
| Mounting Hole Diameter | 2.5 MILLIMETERS MINIMUM AND 2.7 MILLIMETERS MAXIMUM MM |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 5.0 MILLIMETERS MM |
| Counterbore Diameter | 6.0 MILLIMETERS MINIMUM NUT MM |
| Distance From Aperture Center to Mounting Hole Center | 10.9 MILLIMETERS MINIMUM AND 11.1 MILLIMETERS MAXIMUM MM |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 21.95 MILLIMETERS MINIMUM AND 22.05 MILLIMETERS MAXIMUM MM |
| Nut Height | 8.0 MILLIMETERS NOMINAL MM |
| Surface Treatment | CADMIUM NUT |
| Surface Treatment | CADMIUM WASHER |
| Surface Treatment | CADMIUM SHELL |
| Nut Style | PLATE |
| 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 |
|---|---|
| FM1968-050H PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 52348-50-2 | Airbus Group SAS (FRA) |
| Reference | Meaning |
|---|---|
| FM1968-050H | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| FM1968-050H | 5/9 Secondary reference Tecnotec Sarl |
NSN 5310-01-143-3391 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-143-3391 has 2 manufacturer part numbers on file: FM1968-050H (Howmet Global Fastening Systems Inc), 52348-50-2 (Airbus Group SAS).
Key specifications for FM1968-050H: Lubrication: DRY FILM LUBRICANT; Overall Height: 16.2 MILLIMETERS NOMINAL MM; Plate Thickness: 1.10 MILLIMETERS NOMINAL MM; Thread Tolerance Class: 4H5H INTERNAL. 28 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.