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MATERIAL:
  • Bracket: 1050 Carbon Steel per AMS 5085. heat treat to HRc 42-47
  • Housing: 300 Series Cres per AMS 5514
  • Nut: 1050 Carbon Steel per AMS 5085, heat treat to 160 Ksi min ultimate tensile strength
  • Sleeve: Cres per AMS 5639 (304) or AMS 5514 (305)
  • Seal: Buna-N per MIL-R-6855, Class 1 & 2, Grade 60
FINISH CODE:
  • Bracket, Sleeve & Nut: Cad plate per AMS QQ-P-416, Type II, Class 2
  • Housing: Passivate per AMS-QQ-P-35
  • Nut: Dri-Film Lube per MIL-PRF-46010
  • Seal: none
Unit of Measure

Nut Type

 N/A Locking
Thread Size1 N/A 0.2500-20 UNJC-3B
Lead2 N/A Single

H Max.

 N/A 0.560 Inch
L3 N/A 0.162 Inch
Ø M Max.4 N/A 0.335 Inch

Ø Q +.004/-.001 - Soft

 N/A 0.339 Inch

Ø Q +.004/-.001 - Hard

 N/A 0.348 Inch

Ø R1 +.020/-.000

 N/A 0.515 Inch

Ø R2 ±.010

 N/A 0.437 Inch

Ø U

 N/A 0.310 Inch

Ø W

 N/A 0.812 Inch

Y ±.025

 N/A 0.352 Inch

Ø Z

 N/A 0.363 Inch

G1

 N/A 0.344 - 0.374 Inch

G2

 N/A 0.383 - 0.413 Inch
K5 N/A 0.409 Inch

Thread Type

 N/A Unified

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

N/A

  • Nut element has .060 total radial float for grip lengths "AA" thru "C"; .046 min for grips greater than "C"
  • For high volume installation rates, alternative power tooling is available: contact factory for additional information.

    • 1 Sealing performance meets or exceeds NAS 1473 STD. For test information see Report C-10724
      Class -3B "J" threads per SAE-AS-8879.
    • 2 Nut element color code: (PCD 160147)
            None-Locking standard threads
            Green – Non-Locking standard threads
            Yellow - Coarse threads
            Orange - Fast lead threads
    • 3 Soft- dimension for Soft Aluminum Alloys & Plastics
    • 4 Hard - dimension for Hard Aluminum Alloys & Steel
    • 5 "K" is measured from the bottom of the rolled-over housing.