Howmet Fastening Systems
Howmet Fastening Systems
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THREAD: AS8879
MATERIAL: Carbon or alloy steel, heat treated.
FINISH: Cadmium plate per AMS-QQ-P-416, Type II, Class 2, plus Kaylube molybdenum disulfide dry film lubricant coat per AS5272.
PERFORMANCE: NASM25027.
FLOATABILITY: .030 minimum radially from center.
TEMPERATURE: 450°F.
VARIATIONS: Add "BC" for bottom countersunk rivet holes. Example: F1934-3-3BC.
F1934 Anchor Nut - Floating, Two-Lug, Deep C'Bore
Unit of Measure
1 

Item #

A - MAX

B - REF

C ± .005

D - MIN

H - MAX

J ± .002

K +.005 / -.000

M - MIN

P - REF

V - REF

W - MAX

Approx. Weight (LBS/100)

Thread

F1934-08-2 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.312 N/A 0.688 N/A 0.098 N/A 0.125 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.400 N/A 0.1640-32 UNJC-3B
F1934-08-3 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.375 N/A 0.688 N/A 0.098 N/A 0.188 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.470 N/A 0.1640-32 UNJC-3B
F1934-08-4 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.438 N/A 0.688 N/A 0.098 N/A 0.250 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.510 N/A 0.1640-32 UNJC-3B
F1934-08-5 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.500 N/A 0.688 N/A 0.098 N/A 0.312 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.540 N/A 0.1640-32 UNJC-3B
F1934-08-6 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.562 N/A 0.688 N/A 0.098 N/A 0.375 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.600 N/A 0.1640-32 UNJC-3B
F1934-08-7 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.625 N/A 0.688 N/A 0.098 N/A 0.438 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.650 N/A 0.1640-32 UNJC-3B
F1934-08-8 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.687 N/A 0.688 N/A 0.098 N/A 0.500 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.700 N/A 0.1640-32 UNJC-3B
F1934-08-9 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.749 N/A 0.688 N/A 0.098 N/A 0.562 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.750 N/A 0.1640-32 UNJC-3B
F1934-08-10 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.812 N/A 0.688 N/A 0.098 N/A 0.625 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.800 N/A 0.1640-32 UNJC-3B
F1934-3-2 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.312 N/A 0.688 N/A 0.098 N/A 0.125 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.410 N/A 0.1900-32 UNJF-3B
F1934-3-3 N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.375 N/A 0.688 N/A 0.098 N/A 0.188 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.480 N/A 0.1900-32 UNJF-3B
F1934-4-2 N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.344 N/A 1.000 N/A 0.098 N/A 0.125 N/A 0.312 N/A 0.025 N/A 0.516 N/A 0.740 N/A 0.2500-28 UNJF-3B
F1934-4-8 N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.718 N/A 1.000 N/A 0.098 N/A 0.500 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.200 N/A 0.2500-28 UNJF-3B
F1934-4-9 N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.780 N/A 1.000 N/A 0.098 N/A 0.562 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.260 N/A 0.2500-28 UNJF-3B
F1934-4-10 N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.842 N/A 1.000 N/A 0.098 N/A 0.625 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.320 N/A 0.2500-28 UNJF-3B
F1934-5-7 N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.703 N/A 1.000 N/A 0.130 N/A 0.438 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.740 N/A 0.3125-24 UNJF-3B
F1934-5-8 N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.765 N/A 1.000 N/A 0.130 N/A 0.500 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.830 N/A 0.3125-24 UNJF-3B
F1934-5-9 N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.827 N/A 1.000 N/A 0.130 N/A 0.562 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.920 N/A 0.3125-24 UNJF-3B
F1934-5-10 N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.890 N/A 1.000 N/A 0.130 N/A 0.625 N/A 0.375 N/A 0.025 N/A 0.609 N/A 2.010 N/A 0.3125-24 UNJF-3B
F1934-6-3 N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.481 N/A 1.000 N/A 0.130 N/A 0.188 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.590 N/A 0.3750-24 UNJF-3B
F1934-6-4 N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.543 N/A 1.000 N/A 0.130 N/A 0.250 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.720 N/A 0.3750-24 UNJF-3B
F1934-6-7 N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.730 N/A 1.000 N/A 0.130 N/A 0.438 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.110 N/A 0.3750-24 UNJF-3B
F1934-6-8 N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.793 N/A 1.000 N/A 0.130 N/A 0.500 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.240 N/A 0.3750-24 UNJF-3B
F1934-6-9 N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.855 N/A 1.000 N/A 0.130 N/A 0.562 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.370 N/A 0.3750-24 UNJF-3B
F1934-6-10 N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.918 N/A 1.000 N/A 0.130 N/A 0.625 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.500 N/A 0.3750-24 UNJF-3B
F1934-08-2BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.312 N/A 0.688 N/A 0.098 N/A 0.125 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.400 N/A 0.1640-32 UNJC-3B
F1934-08-3BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.375 N/A 0.688 N/A 0.098 N/A 0.188 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.470 N/A 0.1640-32 UNJC-3B
F1934-08-4BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.438 N/A 0.688 N/A 0.098 N/A 0.250 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.510 N/A 0.1640-32 UNJC-3B
F1934-08-5BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.500 N/A 0.688 N/A 0.098 N/A 0.312 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.540 N/A 0.1640-32 UNJC-3B
F1934-08-6BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.562 N/A 0.688 N/A 0.098 N/A 0.375 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.600 N/A 0.1640-32 UNJC-3B
F1934-08-7BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.625 N/A 0.688 N/A 0.098 N/A 0.438 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.650 N/A 0.1640-32 UNJC-3B
F1934-08-8BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.687 N/A 0.688 N/A 0.098 N/A 0.500 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.700 N/A 0.1640-32 UNJC-3B
F1934-08-9BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.749 N/A 0.688 N/A 0.098 N/A 0.562 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.750 N/A 0.1640-32 UNJC-3B
F1934-08-10BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.168 N/A 0.812 N/A 0.688 N/A 0.098 N/A 0.625 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.800 N/A 0.1640-32 UNJC-3B
F1934-3-5BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.500 N/A 0.688 N/A 0.098 N/A 0.312 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.550 N/A 0.1900-32 UNJF-3B
F1934-3-6BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.562 N/A 0.688 N/A 0.098 N/A 0.375 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.610 N/A 0.1900-32 UNJF-3B
F1934-3-7BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.625 N/A 0.688 N/A 0.098 N/A 0.438 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.660 N/A 0.1900-32 UNJF-3B
F1934-3-8BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.687 N/A 0.688 N/A 0.098 N/A 0.500 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.710 N/A 0.1900-32 UNJF-3B
F1934-3-9BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.749 N/A 0.688 N/A 0.098 N/A 0.562 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.760 N/A 0.1900-32 UNJF-3B
F1934-3-10BC N/A 0.948 N/A 0.282 N/A 0.344 N/A 0.194 N/A 0.812 N/A 0.688 N/A 0.098 N/A 0.625 N/A 0.250 N/A 0.020 N/A 0.416 N/A 0.810 N/A 0.1900-32 UNJF-3B
F1934-4-2BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.344 N/A 1.000 N/A 0.098 N/A 0.125 N/A 0.312 N/A 0.025 N/A 0.516 N/A 0.740 N/A 0.2500-28 UNJF-3B
F1934-4-3BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.406 N/A 1.000 N/A 0.098 N/A 0.188 N/A 0.312 N/A 0.025 N/A 0.516 N/A 0.800 N/A 0.2500-28 UNJF-3B
F1934-4-4BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.469 N/A 1.000 N/A 0.098 N/A 0.250 N/A 0.312 N/A 0.025 N/A 0.516 N/A 0.860 N/A 0.2500-28 UNJF-3B
F1934-4-5BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.531 N/A 1.000 N/A 0.098 N/A 0.312 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.010 N/A 0.2500-28 UNJF-3B
F1934-4-6BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.594 N/A 1.000 N/A 0.098 N/A 0.375 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.070 N/A 0.2500-28 UNJF-3B
F1934-4-7BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.656 N/A 1.000 N/A 0.098 N/A 0.438 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.130 N/A 0.2500-28 UNJF-3B
F1934-4-8BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.718 N/A 1.000 N/A 0.098 N/A 0.500 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.200 N/A 0.2500-28 UNJF-3B
F1934-4-9BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.780 N/A 1.000 N/A 0.098 N/A 0.562 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.260 N/A 0.2500-28 UNJF-3B
F1934-4-10BC N/A 1.292 N/A 0.282 N/A 0.500 N/A 0.254 N/A 0.842 N/A 1.000 N/A 0.098 N/A 0.625 N/A 0.312 N/A 0.025 N/A 0.516 N/A 1.320 N/A 0.2500-28 UNJF-3B
F1934-5-2BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.391 N/A 1.000 N/A 0.130 N/A 0.125 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.270 N/A 0.3125-24 UNJF-3B
F1934-5-3BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.453 N/A 1.000 N/A 0.130 N/A 0.188 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.390 N/A 0.3125-24 UNJF-3B
F1934-5-4BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.516 N/A 1.000 N/A 0.130 N/A 0.250 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.440 N/A 0.3125-24 UNJF-3B
F1934-5-5BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.578 N/A 1.000 N/A 0.130 N/A 0.312 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.580 N/A 0.3125-24 UNJF-3B
F1934-5-6BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.641 N/A 1.000 N/A 0.130 N/A 0.375 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.650 N/A 0.3125-24 UNJF-3B
F1934-5-7BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.703 N/A 1.000 N/A 0.130 N/A 0.438 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.740 N/A 0.3125-24 UNJF-3B
F1934-5-8BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.765 N/A 1.000 N/A 0.130 N/A 0.500 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.830 N/A 0.3125-24 UNJF-3B
F1934-5-9BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.827 N/A 1.000 N/A 0.130 N/A 0.562 N/A 0.375 N/A 0.025 N/A 0.609 N/A 1.920 N/A 0.3125-24 UNJF-3B
F1934-5-10BC N/A 1.292 N/A 0.300 N/A 0.500 N/A 0.317 N/A 0.890 N/A 1.000 N/A 0.130 N/A 0.625 N/A 0.375 N/A 0.025 N/A 0.609 N/A 2.010 N/A 0.3125-24 UNJF-3B
F1934-6-2BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.418 N/A 1.000 N/A 0.130 N/A 0.125 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.460 N/A 0.3750-24 UNJF-3B
F1934-6-3BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.481 N/A 1.000 N/A 0.130 N/A 0.188 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.590 N/A 0.3750-24 UNJF-3B
F1934-6-4BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.543 N/A 1.000 N/A 0.130 N/A 0.250 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.720 N/A 0.3750-24 UNJF-3B
F1934-6-5BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.605 N/A 1.000 N/A 0.130 N/A 0.312 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.850 N/A 0.3750-24 UNJF-3B
F1934-6-6BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.668 N/A 1.000 N/A 0.130 N/A 0.375 N/A 0.437 N/A 0.025 N/A 0.680 N/A 1.980 N/A 0.3750-24 UNJF-3B
F1934-6-7BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.730 N/A 1.000 N/A 0.130 N/A 0.438 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.110 N/A 0.3750-24 UNJF-3B
F1934-6-8BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.793 N/A 1.000 N/A 0.130 N/A 0.500 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.240 N/A 0.3750-24 UNJF-3B
F1934-6-9BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.855 N/A 1.000 N/A 0.130 N/A 0.562 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.370 N/A 0.3750-24 UNJF-3B
F1934-6-10BC N/A 1.342 N/A 0.300 N/A 0.500 N/A 0.379 N/A 0.918 N/A 1.000 N/A 0.130 N/A 0.625 N/A 0.437 N/A 0.025 N/A 0.680 N/A 2.500 N/A 0.3750-24 UNJF-3B
Unit of Measure
1