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THREAD: AS8879
MATERIAL:
  • Nut and Housing - Carbon steel, heat treated.
  • Retainer

  • F1968-(*) 7075-T6- Aluminum alloy.
    F1968-(*)H, F1968-(*)L and F1968X(*)L - Carbon steel.
  • Seal
    F1968-(*) and F1968X(*) - Rubber per MIL-R-6855, Class I, grade 60, color black.
    F1968-(*)H - Silicon rubber, shore A55-65, color red.
    F1968-(*)L and F1968X(*)L - Fluorosilicone rubber per AMS 3325 or MIL-R-25988, Type II, Class 1, Durometer A70, color blue.
FINISH:
  • Nut
    • F1968-(*), F1968-(*)H and F1968-(*)L - Cadmium plate per AMS-QQ-P-416, Type II, Class 2 plus Kaylube molybdenum disulfide dry film lubricant coat per AS5272.
    • F1968X(*) and F1968X(*)L - Cadmium plated per fed. spec. AMS-QQ-P-416, Type II, Class 2.
  • Housing - Cadmium plate per fed. spec. AMS-QQ-P-416, Type II, Class 2.
  • Retainer
    • F1968-(*) - Anodize coating per MIL-C-5541.
    • F1968-(*)H, F1968-(*)L and F1968X(*)L - Cadmium plate per AMS-QQ-P-416, Type II Class 2.
  • Seal - None
PERFORMANCE: NASM25027.
FLOATABILITY: .020 min. radially from center.
PRESSURE RANGE: Up to 50 PSI (static differential pressure).
TEMPERATURE:
  • F1968-(*) and F1968X(*) -65°F to +225°F
  • F1968-(*)H -65°F to +450°F
  • F1968-(*)L and F1968X(*)L -65°F to +300°F
Unit of Measure

Specifications

A - MAX

N/A 1.290

C

N/A 0.505-0.495

D - MIN

N/A 0.352

F - REF

N/A 0.455

G - MAX

N/A 0.410

H - MAX

N/A 0.790

J

N/A 1.002-0.998

K

N/A 0.135-0.130

V - REF

N/A 0.020

W - MAX

N/A 0.762

X - MAX

N/A 0.728

Approx. Weight (LBS/100)

N/A 1.810

Temperature

N/A -65°F to +225°F

Retainer Material

N/A Carbon Steel

Seal Material

N/A Rubber per MIL-R-6855, Class 1, Grade 60, Color Black

Nut Finish

N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2

Retainer Finish

N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2

Thread Type

N/A Unified

Configuration 1

N/A Two Lug

Configuration 2

N/A Floating

Configuration 3

N/A Self-Sealing

Lock

N/A Crimp Lock

Simplified Material

N/A Alloy Steel

Strength

N/A 125KSI - 900Mpa

Thread

N/A 0.3125-24 UNJF-3B