PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50FK632Nut,self-Locking,hexagon

Sps Technologies, Llc Dba PB Fasteners · NSN 5310-00-579-4096 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-579-4096 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-579-4096. Primary manufacturer part number: 50FK632.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Thread Class: 2B
  • Bearing Surface Type: CHAMFERED
  • Nominal Thread Size: 0.138 INCHES IN
  • Temp Rating: 750.0 FAHRENHEIT NOMINAL DEGF
  • Width Across Flats: 0.312 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-579-4096, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-579-4096
Primary Part Number50FK632
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusCANCELLED
Nut StyleHEXAGON
Thread Class2B
Bearing Surface TypeCHAMFERED
Nominal Thread Size0.138 INCHES IN
Temp Rating750.0 FAHRENHEIT NOMINAL DEGF
Width Across Flats0.312 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Quantity Per Inch32
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Thread DirectionRIGHT-HAND
Nut Height0.125 INCHES NOMINAL IN
MaterialSTEEL COMP 303 OVERALL
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-07723476 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5930-00-100-125350169 INTERCHANGEABLE
Switch,toggle
Wells Mfg Co
5930-00-122-8627803M03 INTERCHANGEABLE
Switch,code Indicating Wheel
Transico, Inc. Dba Eeco Switch
3417-00-196-7343 INTERCHANGEABLE
Milling Machine,horizontal,unive
3455-00-268-9691 INTERCHANGEABLE
File,rotary
5330-00-297-9851 INTERCHANGEABLE
Seal,plain Encased
4140-00-448-167680303 INTERCHANGEABLE
Fan
Lucent Technologies Inc Corporate Headquarters
5133-01-112-4051DW5715 INTERCHANGEABLE
Drill,masonry,power Hammer
Dewalt Industrial Tool Co
6625-01-375-497980303A INTERCHANGEABLE
Bolometer,radio Frequency
Giga-Tronics Incorporated Dba Giga-Tronics
5985-01-433-2804 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Cross-Reference Index
Part NumberManufacturer
203MS097P014 Raytheon Company (USA)
5016-9 New Haven Mfg Corp (USA)
62-0632B Fairchild Fasteners Europe - Vsd Gmbh (DEU)
50FK632 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
5436K72P1 Ametek Inc Div Aerospace and Defense (USA)
50EFK632 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
80303ADX Airdale Express Llc Div Airdale Express (USA)
62-0632B PRIMARY Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
819932-2 Allied Signal Inc Aerospace Equipment Systems Eatontown Site (USA)
5436K72P1 General Electric Company (USA)
6272C-SS-0832 Zf Industrieantriebe Witten Gmbh (DEU)
203MS097P014 Raytheon Company Div Corp (USA)
203MS097P014 PRIMARY Raytheon Company Dba Raytheon Co (USA)
80303 Federal Screw Products, Inc. (USA)
RM79TM62 Harvard Industries Inc (USA)
Related Parts
3110-00-100-0772INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3476
5930-00-100-1253INTERCHANGEABLE
SWITCH,TOGGLE
50169
5930-00-122-8627INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
803M03
3417-00-196-7343INTERCHANGEABLE
MILLING MACHINE,HORIZONTAL,UNIVE
3455-00-268-9691INTERCHANGEABLE
FILE,ROTARY
5330-00-297-9851INTERCHANGEABLE
SEAL,PLAIN ENCASED
4140-00-448-1676INTERCHANGEABLE
FAN
80303
5133-01-112-4051INTERCHANGEABLE
DRILL,MASONRY,POWER HAMMER
DW5715
6625-01-375-4979INTERCHANGEABLE
BOLOMETER,RADIO FREQUENCY
80303A
5985-01-433-2804INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
4820-01-468-8704INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
50169-12
4820-01-468-8716INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
50169-08

Frequently Asked Questions

What is NSN 5310-00-579-4096?

NSN 5310-00-579-4096 is a Nut,self-Locking,hexagon, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-579-4096?

NSN 5310-00-579-4096 has 15 cross-referenced part numbers: 203MS097P014 (Raytheon Company), 5016-9 (New Haven Mfg Corp), 62-0632B (Fairchild Fasteners Europe - Vsd Gmbh), 50FK632 (Sps Technologies, Llc Dba PB Fasteners), 5436K72P1 (Ametek Inc Div Aerospace and Defense) and 10 more.

What NSN replaces 5310-00-579-4096?

There are 12 known substitutes for 5310-00-579-4096: 3110-00-100-0772, 5930-00-100-1253, 5930-00-122-8627 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50FK632?

Key specifications for 50FK632: Nut Style: HEXAGON; Thread Class: 2B; Bearing Surface Type: CHAMFERED; Nominal Thread Size: 0.138 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-579-4096 still in active supply?

NSN 5310-00-579-4096 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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