The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-004-1490, 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 16 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-004-1490 |
| Primary Part Number | 50FK420 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nut Height | 0.189 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Direction | RIGHT-HAND |
| Bearing Surface Type | CHAMFERED |
| Nominal Thread Size | 0.250 INCHES IN |
| Width Across Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Temp Rating | 800.0 FAHRENHEIT NOMINAL DEGF |
| Nut Style | HEXAGON |
| Reference Number Differentiating Characteristics | MATERIAL MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Quantity Per Inch | 20 |
| Thread Class | 2B |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-004-1490 is a Nut,self-Locking,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-004-1490 has 2 cross-referenced part numbers: 50FK420 (Sps Technologies, Llc Dba PB Fasteners), 50FK420 (Sps Technologies Inc).
There are 2 known substitutes for 5310-00-004-1490: 5310-00-550-9449, 5310-01-142-3641. Verify interchangeability with system specifications before substitution.
Key specifications for 50FK420: Material: STEEL CORROSION RESISTING OVERALL; Nut Height: 0.189 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN; Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Thread Direction: RIGHT-HAND. 16 total characteristics are documented in the Federal Logistics Information System.