PART NUMBER:

NA2348

FEDERAL SUPPLY CODE:

32387

NA2348 Two-Lug Plate Nut

NUT, PLATE, SELF-LOCKING, TWO-LUG, FLOATING, VARIABLE COUNTERBORE, REPLACEABLE NUT ELEMENT

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Specifications
MATERIAL:
  • NUT ELEMENT -- ALLOY OR CARBON STEEL

    Heat treated.

  • NUT ELEMENT -- A-286 CRES

    Per AMS5525, AMS5732 or AMS5737.

  • NUT ELEMENT -- INCONEL

    718 CRES per AMS5662.

  • RETAINER -- ALLOY OR CARBON STEEL

    Heat treated.

  • RETAINER -- A-286 CRES

    Per AMS5525.

  • RETAINING CLIP

    XM-28 CRES spring wire per ASTM A313.

FINISH:
  • NUT ELEMENT -- ALLOY OR CARBON STEEL

    Cadmium plate per AMS-QQ-P-416, type II, class 2.

  • NUT ELEMENT -- CRES (450 DEGREES F.)

    Passivate per AMS-QQ-P-35 plus dry-film lubricant.

  • NUT ELEMENT -- CRES (800 DEGREES F.)

    Passivate per AMS-QQ-P-35 plus silver plate per AMS2410.

  • RETAINER -- ALLOY OR CARBON STEEL

    Cadmium plate per AMS-QQ-P-416, type II, class 2.

  • RETAINER -- A-286 CRES

    Un-plated, passivate per AMS-QQ-P-35.

  • RETAINING CLIP

    Un-plated, passivate per AMS-QQ-P-35.

CODES:
  • "A"

    Following basic part number indicates alloy or carbon steel nut and retainer.

  • "C"

    Following basic part number indicates CRES nut and retainer.

  • "M"

    Following "C" code indicates dry-film lubricant.

  • "S"

    Following "C" code indicates silver plated nut.

  • "N"

    Suffixed to steel nut indicates NO dry-film lubricant.

  • "BC"

    Suffixed to second dash number indicates dimpled rivet holes.

  • "W"

    Suffixed to CRES nut indicates projection weld nibs on retainer.

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Product Information

Marketing Summary

PART #: NA2348

  • Nut
  • Self-Locking
  • Two-Lug
  • Plate
  • Floating
  • Variable Counterbore
  • Replaceable Nut Element
Prefix

Part Number Example Callout

NA2348 CM – 048 – 3 :

NA2348 = Basic Part Number
CM = Material and Finish Code (See Code Section)
– 048 = Thread Size (See Table I)
– 3 = Counterbore Depth (See Table I)

Notes:

  1. All dimensions are in inches.
  2. Tabulated push-out and torque-out values shown in table apply both separately and combined.
  3. The inclusion of lubrication on the retainers and retaining clips of lubricated nuts is optional.

Specifications

MATERIAL
  • NUT ELEMENT -- ALLOY OR CARBON STEEL:

    Heat treated.

  • NUT ELEMENT -- A-286 CRES:

    Per AMS5525, AMS5732 or AMS5737.

  • NUT ELEMENT -- INCONEL:

    718 CRES per AMS5662.

  • RETAINER -- ALLOY OR CARBON STEEL:

    Heat treated.

  • RETAINER -- A-286 CRES:

    Per AMS5525.

  • RETAINING CLIP:

    XM-28 CRES spring wire per ASTM A313.

FINISH
  • NUT ELEMENT -- ALLOY OR CARBON STEEL:

    Cadmium plate per AMS-QQ-P-416, type II, class 2.

  • NUT ELEMENT -- CRES (450 DEGREES F.):

    Passivate per AMS-QQ-P-35 plus dry-film lubricant.

  • NUT ELEMENT -- CRES (800 DEGREES F.):

    Passivate per AMS-QQ-P-35 plus silver plate per AMS2410.

  • RETAINER -- ALLOY OR CARBON STEEL:

    Cadmium plate per AMS-QQ-P-416, type II, class 2.

  • RETAINER -- A-286 CRES:

    Un-plated, passivate per AMS-QQ-P-35.

  • RETAINING CLIP:

    Un-plated, passivate per AMS-QQ-P-35.

CODES
  • "A":

    Following basic part number indicates alloy or carbon steel nut and retainer.

  • "C":

    Following basic part number indicates CRES nut and retainer.

  • "M":

    Following "C" code indicates dry-film lubricant.

  • "S":

    Following "C" code indicates silver plated nut.

  • "N":

    Suffixed to steel nut indicates NO dry-film lubricant.

  • "BC":

    Suffixed to second dash number indicates dimpled rivet holes.

  • "W":

    Suffixed to CRES nut indicates projection weld nibs on retainer.