NES Part Numbers

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Nissan Engineering Section (NES) uses the following Part Number format for bolts and screws.

Kind + dimensions (dd) + length (LL)

Bolts & Studs

• 11ddLL: Hexagon bolt, Low carbon steel
• 12ddLL: Hexagon bolt, Medium carbon steel
• 13ddLL: Hexagon bolt, Alloy steel
• 17dLLL: Carriage bolt, Round head
• 18dLLL: Carriage bolt, Flat head
• 19dLLL: Carriage bolt, Step

• 21ddLL: Stud, Low carbon steel (for cast iron)
• 22ddLL: Stud, Medium carbon steel (for cast iron)
• 23ddLL: Stud, Low carbon steel (for light alloy)
• 24ddLL: Stud, Medium carbon steel (for light alloy)

• 31ddLL: Machine screw, Pan head
• 32ddLL: Machine screw, Flat head
• 33ddLL: Machine screw, Oval head
• 34ddLL: Machine screw, Truss head
• 35ddLL: Machine screw, Blind head
• 36ddLL: Machine screw, Hexagon head

• 51ddLL: Tapping screw, Pan head
• 52ddLL: Tapping screw, Flat head
• 53ddLL: Tapping screw, Oval head
• 54ddLL: Tapping screw, Truss head
• 57dLL: Wood screw, Round head
• 58dLL: Wood screw, Flat countersunk head
• 59dLL: Wood screw, Oval head

• 61ddLL: Rivet, Round head
• 62ddLL: Rivet, Flat countersunk head
• 63ddLL: Rivet, Flat head
• 66ddLL: Rivet, Tubular flat head
• 67ddLL: Rivet, Tubular flat countersunk head
• 68ddLL: Rivet, Split oval head

Nuts and Washers

• 9111dd: Hexagon nut, low carbon steel
• 9112dd: Hexagon nut, medium carbon steel
• 9113dd: Hexagon nut, Low, low carbon steel
• 9115dd: Hexagon nut, High, low carbon steel
• 9116dd: Hexagon nut, High, medium carbon steel
• 9117dd: Hexagon nut, Recess, high, low carbon steel
• 9118dd: Hexagon nut, Recess, high, medium carbon steel
• 9119dd: Hexagon nut, Recess, low, low carbon steel
• 9110dd: Hexagon nut, Recess, low, high carbon steel

Self-locking nut (stopper nut)

• 9123dd: Self-locking hexagon nut, N, low carbon steel
• 9124dd: Self-locking hexagon nut, N, medium carbon steel
• 9125dd: Self-locking hexagon nut, low, low carbon steel
• 9126dd: Self-locking hexagon nut, low, medium carbon steel

• 9131dd: Nut, Square
• 9134dd: Nut, Wing (forged)
• 9135dd: Nut, Wing (sheet)

Washer

• 9151dd: Washer, Sring lock medium
• 9152dd: Washer, Sring lock thick
• 9154dd: Washer, Plain standard
• 9155dd: Washer, Plain large
• 9158dd: Washer, Finish

Tooth Lock washer (shakeproof)

• 9161dd: Washer, toothed inside ratchet (outside dia. msall)
• 9162dd: Washer, toothed inside ratchet (outside dia. large)
• 9163dd: Washer, toothed outside ratchet
• 9164dd: Washer, toothed 80° countersunk
• 9165dd: Washer, toothed 90° countersunk
• 9168dd: Washer, toothed both side ratchet

• 9171dd: Nut retainer, Both shanks round hole
• 9172dd: Nut retainer, One shank round hole
• 9173dd: Nut retainer, Both shanks long hole
• 9174dd: Nut retainer, One shank long hole

Other Small Hardware

• 920dLL: Pin & key
  • 1 Cotter pin
  • 6 Semicircular key
  • 8 Parallel key

• 9311dd: Plug, threaded, square head taper thread
• 9312dd: Plug, threaded, square hole taper thread
• 9312dd: Plug, threaded, recessed taper thread
• 9313dd: Plug, threaded, hex head taper thread
• 9314dd: Plug, threaded, hex head parallel thread

• 9321dd: Grease nipple, Straight
• 9322dd: Grease nipple, 67.5°
• 9323dd: Grease nipple, 90°

• 94*1dd: Electric parts

• 95*1dd: Rubber Grommet

NOTE: For parts that have surface finishing or cotter pin hole, symbols showing these proceedings are added at the end of the part number.