The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-012-2684, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-01-012-2684 |
| Primary Part Number | 21FK813 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | CANCELLED |
| Lubrication | SOLUBLE LUBRICANT |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Nominal Thread Size | 0.500 INCHES IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Bearing Surface Type | CHAMFERED |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Nut Style | HEXAGON |
| Nut Height | 0.328 INCHES MAXIMUM IN |
| Width Across Flats | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Thread Class | 2B |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5310-01-012-2684 is a Nut,self-Locking,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-01-012-2684 has 3 cross-referenced part numbers: 80111 (Federal Screw Products, Inc.), 80111ADX (Airdale Express Llc Div Airdale Express), 21FK813 (Sps Technologies, Llc Dba PB Fasteners).
There are 8 known substitutes for 5310-01-012-2684: 5307-00-026-8574, 6210-00-174-8967, 5975-00-983-5239 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21FK813: Lubrication: SOLUBLE LUBRICANT; Thread Direction: RIGHT-HAND; Surface Treatment: CADMIUM OVERALL; Nominal Thread Size: 0.500 INCHES IN. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-01-012-2684 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.