PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN320C3Nut,plain,slotted,hexagon

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-264-1240 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-264-1240 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-264-1240. Primary manufacturer part number: AN320C3.
Features
  • Nut,plain,slotted,hexagon — FSC 5310
  • Thread Class: 3B
  • Thread Quantity Per Inch: 32
  • Nominal Thread Size: 0.190 INCHES IN
  • Thread Series: UNF
  • Bearing Surface Finish: 125.0 MICROINCHES
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Material: STEEL CORROSION RESISTING OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-264-1240, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-264-1240
Primary Part NumberAN320C3
Item NameNut,plain,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Thread Class3B
Thread Quantity Per Inch32
Nominal Thread Size0.190 INCHES IN
Thread SeriesUNF
Bearing Surface Finish125.0 MICROINCHES
Bearing Surface TypeCHAMFERED OR WASHER FACED
MaterialSTEEL CORROSION RESISTING OVERALL
Surface TreatmentPASSIVATE OVERALL
Width Across Flats0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
Nut Height0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
Nut StyleSLOTTED, HEXAGON
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-358-834441S104 INTERCHANGEABLE
Washer,key
Oshkosh Defense Llc
4820-01-007-05411350-3 INTERCHANGEABLE
Valve,safety Relief
Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division
4730-01-234-1774P-1-17-19 INTERCHANGEABLE
Flange,pipe
Bird-Johnson Propeller Company, Llc
6240-01-344-544320B10C/CF/4M/SS/120V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
1005-01-459-584613503 INTERCHANGEABLE
Stop Spring Shell
O F Mossberg & Sons Inc
6515-01-577-5129241.951 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
AN320C3 Satair A/s (DNK)
13503 Triumph Engine Control Systems Llc (USA)
AN320C3 Leonardo Spa Helicopters Division - Production Site (ITA)
AN320C3 Boeing Distribution Services X, Inc. (USA)
AN320C3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
AN320C3 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
AN320C3 Greer Stop Nut, Inc. (USA)
AN320C3 Zf Industrieantriebe Witten Gmbh (DEU)
AN320C3 Falls Filtration Technologies, Inc. (USA)
5310PL0820306 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5310-00-358-8344INTERCHANGEABLE
WASHER,KEY
41S104
4820-01-007-0541INTERCHANGEABLE
VALVE,SAFETY RELIEF
1350-3
4730-01-234-1774INTERCHANGEABLE
FLANGE,PIPE
P-1-17-19
6240-01-344-5443INTERCHANGEABLE
LAMP,INCANDESCENT
20B10C/CF/4M/SS/120V
1005-01-459-5846INTERCHANGEABLE
STOP SPRING SHELL
13503
6515-01-577-5129INTERCHANGEABLE
BONE PLATE
241.951

Frequently Asked Questions

What is NSN 5310-00-264-1240?

NSN 5310-00-264-1240 is a Nut,plain,slotted,hexagon, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-264-1240?

NSN 5310-00-264-1240 has 10 cross-referenced part numbers: AN320C3 (Satair A/s), 13503 (Triumph Engine Control Systems Llc), AN320C3 (Leonardo Spa Helicopters Division - Production Site), AN320C3 (Boeing Distribution Services X, Inc.), AN320C3 (Aeronautical Standards Group Dept of Navy and Air Force) and 5 more.

What NSN replaces 5310-00-264-1240?

There are 6 known substitutes for 5310-00-264-1240: 5310-00-358-8344, 4820-01-007-0541, 4730-01-234-1774 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN320C3?

Key specifications for AN320C3: Thread Class: 3B; Thread Quantity Per Inch: 32; Nominal Thread Size: 0.190 INCHES IN; Thread Series: UNF. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-264-1240 still in active supply?

NSN 5310-00-264-1240 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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