The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-326-4323, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-326-4323 |
| Primary Part Number | F49968-5 |
| 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 | 0.042 INCHES NOMINAL IN |
| Nut Length | 1.682 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.780 INCHES MAXIMUM IN |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | AMS 5664 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Mounting Hole Diameter | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.695 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 1.398 INCHES MINIMUM AND 1.402 INCHES MAXIMUM IN |
| Nut Height | 0.352 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 SHELL |
| Material | NICKEL ALLOY 718 NUT |
| Material | STEEL CORROSION RESISTING CLIP |
| 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 |
|---|---|
| F49968-5 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| NS103909-054 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M672-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5310-01-326-4323 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-326-4323 has 1 manufacturer part number on file: F49968-5 (Howmet Global Fastening Systems Inc).
Key specifications for F49968-5: Lubrication: DRY FILM LUBRICANT; Plate Thickness: 0.042 INCHES NOMINAL IN; Nut Length: 1.682 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 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.