PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11FC524Nut,self-Locking,hexagon

Sps Technologies, Llc Dba PB Fasteners · NSN 5310-00-050-3345 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-050-3345 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-050-3345. Primary manufacturer part number: 11FC524.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nominal Thread Size: 0.312 INCHES IN
  • Thread Class: 3B
  • Width Across Flats: 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 24
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-050-3345, 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 40 commercial cross-references from 28 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
NSN5310-00-050-3345
Primary Part Number11FC524
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba PB Fasteners
StatusCANCELLED
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size0.312 INCHES IN
Thread Class3B
Width Across Flats0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch24
MaterialSTEEL NUT
MaterialFIBER LOCKING INSERT
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Nut Height0.344 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
Nut StyleHEXAGON
Thread SeriesUNF
Surface TreatmentCADMIUM OVERALL EXCEPT INSERT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5998-00-004-9657123029-1 INTERCHANGEABLE
Circuit Card Assembly
Bae Systems Information and Electronic Systems Integration Inc.
5331-00-050-0174503345 INTERCHANGEABLE
O-Ring
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
1650-00-185-2084203686 INTERCHANGEABLE
Plug,booster Control Valve
Lockheed Martin Corp
5910-00-234-2567212678-3 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5910-00-235-0892 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
5935-00-283-206522427 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
3020-00-330-0487171B831 INTERCHANGEABLE
Gear,face
General Electric Company
3020-00-350-33513199 INTERCHANGEABLE
Gear,spur
Renk America Llc Div Renk America
5330-00-425-2474 INTERCHANGEABLE
Gasket
5961-00-450-2356190007P1 INTERCHANGEABLE
Semiconductor Device,diode
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
Cross-Reference Index
Part NumberManufacturer
11FC524 Sps Technologies, Llc Dba PB Fasteners (USA)
11FC524 Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
22427 Satair A/s (DNK)
7700859 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
7419109 CAGE 00000
10-52570 Unison Industries Llc (USA)
520806 Satair A/s (DNK)
MT170 Great American Industries Inc (USA)
25078 Hamilton Sundstrand Corporation (USA)
P839 New York Rubber Corp
22427 Renk America Llc Div Renk America (USA)
HLIS524 Satair A/s (DNK)
HLIS524 Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA)
503345 Diamond Reo Truck Co (USA)
360384S7A1 Ford Motor Company (USA)
P10993 Donaldson Company, Inc. (USA)
203686 Satair A/s (DNK)
203686 Renk America Llc Div Renk America (USA)
C0-520806 Renk America Llc Div Renk America (USA)
AN365-524 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5998-00-004-9657INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
123029-1
5331-00-050-0174INTERCHANGEABLE
O-RING
503345
1650-00-185-2084INTERCHANGEABLE
PLUG,BOOSTER CONTROL VALVE
203686
5910-00-234-2567INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
212678-3
5910-00-235-0892INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5935-00-283-2065INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
22427
3020-00-330-0487INTERCHANGEABLE
GEAR,FACE
171B831
3020-00-350-3351INTERCHANGEABLE
GEAR,SPUR
3199
5330-00-425-2474INTERCHANGEABLE
GASKET
5961-00-450-2356INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
190007P1
6625-00-531-4301INTERCHANGEABLE
INDICATOR,DIGITAL DISPLAY
4730-00-630-0593INTERCHANGEABLE
CLAMP,HOSE
MLV91313Z

Frequently Asked Questions

What is NSN 5310-00-050-3345?

NSN 5310-00-050-3345 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 5310-00-050-3345?

NSN 5310-00-050-3345 has 40 cross-referenced part numbers: 11FC524 (Sps Technologies, Llc Dba PB Fasteners), 11FC524 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana), 22427 (Satair A/s), 7700859 (U S Army Tank Automotive Command Amsta-Im-Mm), 7419109 and 35 more.

What NSN replaces 5310-00-050-3345?

There are 12 known substitutes for 5310-00-050-3345: 5998-00-004-9657, 5331-00-050-0174, 1650-00-185-2084 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11FC524?

Key specifications for 11FC524: Bearing Surface Type: CHAMFERED OR WASHER FACED; Nominal Thread Size: 0.312 INCHES IN; Thread Class: 3B; Width Across Flats: 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-050-3345 still in active supply?

NSN 5310-00-050-3345 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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