The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-279-4284, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bristol Industries, Llc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-279-4284 |
| Primary Part Number | BFN442-4-6 |
| Item Name | Nut,self-Locking,plate |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Bristol Industries, Llc |
| Status | CANCELLED |
| Plate Width | 0.574 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Material | STEEL CORROSION RESISTING CLIP |
| Plate Thickness | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 28 |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Specification/standard Data | 76301-ST3-442 MANUFACTURERS STANDARD |
| Mounting Hole Arrangement Style | 2 HOLES |
| Thread Class | 3B |
| Features Provided | FLOATING NUT |
| Nut Counterbore Depth | 0.375 INCHES MINIMUM NUT IN |
| Lubrication | DRY FILM LUBRICANT |
| Surface Treatment | PASSIVATE SHELL |
| Nut Style | PLATE |
| Nominal Thread Size | 0.250 INCHES IN |
| Distance From Aperture Center to Mounting Hole Center | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.254 INCHES MINIMUM NUT IN |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Material | IRON ALLOY 660 NUT |
| Nut Height | 0.600 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nut Length | 1.306 INCHES MAXIMUM IN |
| Center to Center Distance Between Mounting Holes Along Length | 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Material | IRON ALLOY 660 SHELL |
| Nut Mounting Provision | STRAIGHT HOLES |
| Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10121246 | Nimikkeistokeskus Ncb Finland (FIN) |
| ST3M442-4A6 | The Boeing Company Div Defense (USA) |
| BFN442-4-6 PRIMARY | Bristol Industries, Llc (USA) |
| ST3M442-4A6 | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| F49251-4-6 | Howmet Global Fastening Systems Inc (USA) |
| NS202042-048-6 PRIMARY | Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA) |
| F49251E4-6 PRIMARY | Shield Air Co (USA) |
| F18427L6-4 | Harvard Industries Inc (USA) |
| F49251E4-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| F18427-6-4 | Harvard Industries Inc (USA) |
| L6-4 | Jsj Corporation Dba Dake Div Dake Div (USA) |
NSN 5310-00-279-4284 is a Nut,self-Locking,plate, manufactured by Bristol Industries, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-279-4284 has 11 cross-referenced part numbers: 10121246 (Nimikkeistokeskus Ncb Finland), ST3M442-4A6 (The Boeing Company Div Defense), BFN442-4-6 (Bristol Industries, Llc), ST3M442-4A6 (Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems), F49251-4-6 (Howmet Global Fastening Systems Inc) and 6 more.
There are 6 known substitutes for 5310-00-279-4284: 8140-00-066-6082, 6520-00-142-8986, 3120-00-620-4753 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for BFN442-4-6: Plate Width: 0.574 INCHES NOMINAL IN; Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Material: STEEL CORROSION RESISTING CLIP; Plate Thickness: 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN. 26 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-279-4284 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.