The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-012-3599, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-01-012-3599 |
| Primary Part Number | 21FC428 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | CANCELLED |
| Nut Style | HEXAGON |
| Lubrication | SOLUBLE LUBRICANT |
| Nut Height | 0.320 INCHES MAXIMUM IN |
| Bearing Surface Type | CHAMFERED |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Class | 3B |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Width Across Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5310-01-012-3599 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 5310-01-012-3599 has 2 cross-referenced part numbers: 21FC428 (Sps Technologies, Llc Dba PB Fasteners), 50680 (Compair Kellogg Div of Robertshaw Controls Co).
There are 4 known substitutes for 5310-01-012-3599: 5310-00-035-5296, 3460-00-603-9281, 3020-01-319-0813 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21FC428: Nut Style: HEXAGON; Lubrication: SOLUBLE LUBRICANT; Nut Height: 0.320 INCHES MAXIMUM IN; Bearing Surface Type: CHAMFERED. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-01-012-3599 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.