- Thread Class
- 3A
- Thread Direction
- Right-hand
- Fastener Length
- 1.560 inches nominal
- Head Height
- 0.103 inches minimum and 0.115 inches maximum
- Width Between Flats
- 0.220 inches minimum and 0.224 inches maximum
- Shank Diameter
- 0.4990 inches nominal
- Shank Style
- Pin-rivet, straight, threaded
- Head Major Diameter
- 0.735 inches minimum and 0.770 inches maximum
- Lubrication
- Cetyl alcohol
- End Item Identification
- Aircraft, awacs, E-3A; aircraft, stratolifter C-135, group B
- Grip Length
- 0.875 inches nominal
- Thread Quantity per Inch
- 20
- Nominal Thread Size
- 0.500 inches
- Special Features
- End shall be flat and chamfered;not available in diameters larger than .500IN;UNJF-3A (except UNJC-3A for .1640-32)THREAD per MIL-S-8879, rolled, except major diameter shall conform to "td";inspection report shall provide name of coating applicator in addition to procurement specification requirements;maximum "d" diameter may be exceeded by >0002 inches for dry film lubed bolts;identify with green dye or paint on thread end before lubrication; coverage of dye or paint may include chamfer dimention plus one pitch;cetyl alcohol lube;end item E-3A
- Material
- Steel comp 8740 or iron alloy 660 overall
- Material Document and Classification
- AMS-S-6758 assn std single material response or AMS-S-6382 assn std single material response or AMS-S-6349 assn std single material response or AMS6415 assn std single material response or AMS6484 assn std single material response or AMS5731 assn std single material response or AMS5737 assn std single material response overall
- Surface Treatment
- Cadmium and passivate overall
- Surface Treatment Document and Classification
- QQ-P-416, TYPE2, CLASS2 fed spec single treatment response and QQ-P-35 fed spec single treatment response overall
- Thread Series Designator
- UNJF
Catalogue data is compiled from public DLA/FLIS sources and is provided for
identification. Availability, condition and certification are confirmed on
quotation. OmniSynk Distribution Services is a stocking distributor.