THREAD: AS8879
MATERIAL:

• Nut and Housing - Carbon steel, heat treated.
• Retainer

MF1968-(*) 7075-T6- Aluminum alloy.
MF1968-(*)H, MF1968-(*)L and MF1968X(*)L - Carbon steel.
• Seal

MF1968-(*) and MF1968X(*) - Rubber per MIL-R-6855, Class 1, grade 60, color black.
MF1968-(*)H - Silicon rubber, shore A55-65, color red.
MF1968-(*)L and MF1968X(*)L - Fluorosilicone rubber per AMS 3325 or MIL-R-25988, Type II, Class 1, Durometer A70, color blue.

FINISH:

• Nut

MF1968-(*)H and MF1968-(*)L - Cadmium plate per AMS-QQ-P-416, Type II, Class 2, plus Kaylube molybdenum disulfide dry film lubricant coat per AS5272.
MF1968X(*) and MF1968X(*)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

MF1968-(*) - Anodize coating per MIL-C-5541.
MF1968-(*)H, MF1968-(*)L and MF1968X(*)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:

MF1968-(*) and MF1968X(*) -65°F to +225°F.
MF1968-(*)H -65°F to +450°F.
MF1968-(*)L and MF1968X(*)L -65°F to +300°F.