The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-283-4635, 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 23 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-283-4635 |
| Primary Part Number | F49249E5-4 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Plate Thickness | 0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN |
| Nut Length | 1.292 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Plate Width | 0.710 INCHES NOMINAL IN |
| Mounting Hole Arrangement Style | 2 HOLES |
| Material Document and Classification | AMS5735 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Mounting Hole Diameter | 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Nut Counterbore Depth | 0.250 INCHES MINIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Specification/standard Data | 76301-ST3-443 MANUFACTURERS STANDARD |
| Counterbore Diameter | 0.317 INCHES MINIMUM NUT IN |
| Distance From Aperture Center to Mounting Hole Center | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Center to Center Distance Between Mounting Holes Along Length | 0.998 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN |
| Nut Height | 0.529 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE SHELL |
| Nut Style | PLATE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 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 |
|---|---|
| F49249E5-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| BFN443-5-4 PRIMARY | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| 10121272 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| F18421L4-5 | 5/9 Secondary reference Harvard Industries Inc |
| F49249-5-4 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| F18421L4-5 | 3/2 Design control — primary reference U.S. Government activity |
| NS202041-054-4 | 3/2 Design control — primary reference U.S. Government activity |
| F18421-4-5 | 5/9 Secondary reference Harvard Industries Inc |
| ST3M443-5A4 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| NAS1791C5-4 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-283-4635 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-283-4635 has 2 manufacturer part numbers on file: F49249E5-4 (Howmet Global Fastening Systems Inc), BFN443-5-4 (Bristol Industries, Llc).
Key specifications for F49249E5-4: Plate Thickness: 0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN; Nut Length: 1.292 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Plate Width: 0.710 INCHES NOMINAL IN. 23 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.