PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1726C4PENut,self-Locking,assembled Washe

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-01-550-2433 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-550-2433 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-550-2433. Primary manufacturer part number: NAS1726C4PE.
Features
  • Nut,self-Locking,assembled Washe — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Thread Quantity Per Inch: 32
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Nominal Thread Size: 0.190 INCHES IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nut,self-Locking,assembled Washe, cataloged under National Stock Number 5310-01-550-2433, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-550-2433
Primary Part NumberNAS1726C4PE
Item NameNut,self-Locking,assembled Washe
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Thread DirectionRIGHT-HAND
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Thread Quantity Per Inch32
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Nominal Thread Size0.190 INCHES IN
MaterialSTEEL CORROSION RESISTING OVERALL
Surface TreatmentPASSIVATE OVERALL
Countersink Angle4.0 DEGREES NOMINAL FIRST END
Width Across Flats0.221 INCHES MAXIMUM IN
Washer Outside Diameter0.380 INCHES MAXIMUM IN
Nut StyleFLAT WITH TURNED UP EDGE
Thread Class3B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-366-655827239 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
Cross-Reference Index
Part NumberManufacturer
NAS1726C4PE PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
952062 Safran Aerosystems (FRA)
Related Parts
5330-00-366-6558INTERCHANGEABLE
GASKET
27239

Frequently Asked Questions

What is NSN 5310-01-550-2433?

NSN 5310-01-550-2433 is a Nut,self-Locking,assembled Washe, 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: active.

What are the part numbers for NSN 5310-01-550-2433?

NSN 5310-01-550-2433 has 2 cross-referenced part numbers: NAS1726C4PE (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 952062 (Safran Aerosystems).

What NSN replaces 5310-01-550-2433?

There is 1 known substitute for 5310-01-550-2433: 5330-00-366-6558. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1726C4PE?

Key specifications for NAS1726C4PE: Thread Direction: RIGHT-HAND; Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Thread Quantity Per Inch: 32; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 15 total characteristics are documented in the Federal Logistics Information System.

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