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MATERIAL
  • Sleeve: Cres per AMS 5639 (304) or AMS 5514 (305)
  • Bracket: 17-7 PH Cres per AMS 5528, H.T. to 180 Ksi min ultimate tensile strength
  • Nut: A-286 Cres per AMS 5525 or 5737, H.T. to 160 Ksi min ultimate tensile strength
FINISH CODE:
  • Bracket, Nut & Sleeve: Passivate per AMS QQ-P-35
  • Nut: Dri-Film Lubricant per MIL-PRF-46010
Unit of Measure

Nut Type

N/A Locking

Thread Size

N/A MJ3 x 0.5-4H6H
Lead1 N/A Metric

Ø M MAX.

N/A 0.217 Inch
Ø Q +.004/-.001 - Soft2 N/A 0.218 Inch
Ø Q +.004/-.001 - Hard3 N/A 0.218 Inch

Ø R1 +.020/-.000

N/A 0.312 Inch

Ø R2 ±.005

N/A 0.307 Inch

Ø U

N/A 0.192 Inch

W

N/A 0.295 Inch

X

N/A 0.420 Inch

Ø Z

N/A 0.228 Inch

G1

N/A N/A Inch

G2

N/A 0.055 - 0.073 Inch

K

N/A 0.073 Inch

L - Nut Height

N/A 0.109 Inch

Y - Thread Relief

N/A 0.554 Inch
Weight4 N/A 0.131 lb/100

Thread Type

N/A Metric MJ

N/A "AA" Grip recommended panel preparation:
Sizes M3 & M3.5 - "R2" dimension .275

A minimum of two threads are deformed to produce self-locking action per NASM25027 when locking feature is required.

N/A

  • Nut element has .060 total Radial Float for Grip lengths "AA" thru "C" and .046 minimum for Grip lengths greater than "C“ .
  • For nut element replacement Part Number, see drawing S-0877.
  • Nut element removal tool available, Part Number RB6527.
  • Complete tool assembly includes Nose Piece, Puller, & Handle. "N" designates counterbore, "S" designates countersink.
  • For high volume installation rates, alternative power tooling is available
    Contact HFS Installation Systems for more information.
  • Thread dimensions apply prior to application of Dri-Film Lubricant. Possible thread tightness due to lube buildup will diminish following engagement of Mating Part.
  • Threads are cut for thread size codes M4, M5, M6.
  • Locking torque values of sizes M4, M5, M6 are to satisfy SNECMA DT57-11.

    • 1 Nut element color code: (PCD 160147)
            Sky blue - "MJ" metric threads.
    • 2 Soft- dimension for Soft Aluminum Alloys & Plastics
    • 3 Hard - dimension for Hard Aluminum Alloys & Steel
    • 4 To obtain additional weights add increments of .010 lbs/100 per letter code for M3, M3.5;