NISSAN 08918-6421A Self-Locking Flange Nut

The Nissan 08918-6421A part is a genuine factory (OEM) self-locking flange nut (NUT-SLOCK). This fastener is specifically engineered for vehicle structural locations subjected to severe stress and continuous vibration. The integrated flange provides a wide contact area, distributing clamping pressure evenly across the joined components and eliminating the need for a separate washer. Its self-locking design prevents the threaded connection from loosening unintentionally, even under sustained vibration, temperature fluctuations, and dynamic loads.

Technical Characteristics and Features

• Manufacturer: Nissan (Genuine OEM part)
• Part Number: 08918-6421A
• Type: Self-locking flange nut (NUT-SLOCK)
• Design: Integrated pressure-distributing flange, vibration-resistant self-locking thread configuration
• Material & Finish: Industrial-grade, high-strength steel with corrosion-resistant coating
• Wear Indicators & Failure Modes: Thread elongation or thread stripping caused by overtightening, surface degradation from corrosion, and loss of the self-locking prevailing torque capability after repeated removal and installation. Replacing self-locking nuts during suspension and engine repairs is strongly recommended to guarantee a secure, reliable joint.

Vehicle Compatibility

Applicable to the following models and variants [production periods between 1997 – 2013]:

• Nissan Ad Resort (HY10)
• Nissan Ad Wagon (Y10, Y11)
• Nissan Armada (TA60)
• Nissan Bluebird Sylphy (G11, G11TW, G11Z)
• Nissan Cabstar (F24, F24M)
• Nissan Cube (Z12)
• Nissan D50 Taxi (TVN10C)
• Nissan D50/R50/R50x (VN10C)
• Nissan Frontier (D22B)
• Nissan Fx45/35 (S50)
• Nissan Grand Livina (L10TW, L10P, L10H, L10HH)
• Nissan Grandlivina Inn (L10N)
• Nissan Grandlivina Mly (L10L)
• Nissan Latio (SC11)
• Nissan Latio Mly Make (C11L)
• Nissan Livina (NL10S)
• Nissan Livina Bra Make (L10B, L10BB)
• Nissan Livina C-Gear (NL10Z)
• Nissan Livina Geniss (L10Z)
• Nissan Livina Inn Make (L11N, L11NN, TL10N)
• Nissan Livina Prc Make (L11Z)
• Nissan Livina Sfa Make (L10S)
• Nissan Livina X-Gear (L11W, L11WW)
• Nissan Livinaxgear Inn (NTL10N)
• Nissan Livinaxgear Mly (NTL10L)
• Nissan M50v (VN10Y)
• Nissan March (K12)
• Nissan Navara Spa Make (D40M)
• Nissan Np300 F/Saf (LCD22S)
• Nissan Nt400 Cabstar (F24F, F24FF)
• Nissan Pathfinder (R51)
• Nissan Pathfinder Spn (R51M)
• Nissan Patrol (Y61)
• Nissan Primera (P12E)
• Nissan Primera Wagon (W10)
• Nissan Quest (E52)
• Nissan Qx56 (JA60)
• Nissan Safari (GCY61)
• Nissan Safari Pick Up (GCTY61, TY61)
• Nissan Sylphy (G11L)
• Nissan T60 (VN10W)
• Nissan Tiida (C11, C11S, SC11S)
• Nissan Tiida Prc Make (C11Z)
• Nissan Tiida Thi Make (SC11T)
• Nissan Tiida Twn Make (C11TW)
• Nissan Tiida/Latio Thi (C11T)
• Nissan Titan (A60, A61)
• Nissan Versa (C11X)
• Nissan Versa Sedan (N17X, SC11X)
• Nissan Xterra (WD22B)