- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.626 inches nominal
- Fastener Length
- 3.063 inches nominal
- Head Style
- Dished hexagon
- Head Height
- 0.312 inches nominal
- Width Between Flats
- 0.928 inches minimum and 0.940 inches maximum
- Grip Diameter
- 0.623 inches minimum and 0.624 inches maximum
- End Item Identification
- 3MH60SC airframe; tie assembly fwd ai; tie assembly aft ai; tie assembly fore a; aft floor tie assem; MH60S airborne mine countermeasure mission
- Nominal Thread Diameter
- 0.625 inches
- Grip Length
- 2.115 inches minimum and 2.135 inches maximum
- Thread Quantity per Inch
- 18
- Part Name Assigned BY Controlling Agency
- Inavy: hex hd bolt; std: bolt, tension, hex head, close tolerance, alloy steel, short thread, reduced major thread dia., non-locking, 160KSI ftu
- Material
- Plastic nylon locking feature
- Material
- Steel comp 4140 overall or steel comp 4340 overall or steel comp 8740 overall
- Material Document and Classification
- AMS6349 assn std single material response overall or AMS6415 assn std single material response overall or AMS6484 assn std single material response overall or AMS6322 assn std single material response overall
- Material Document and Classification
- MIL-DTL-18240 mil spec single material response locking feature
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- AMS-QQ-P-416, type ii, class 2, embrittlement requirement per NAS4002 assn std 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.