Aviation Fittings

Hi-Line’s family of aviation/aerospace fittings are mil spec,  SAE and AN compliant.

37° Flare Adapters

More Info
Call us at 1-800-944-5463 to order!
Top of Page
Mil Spec Style Part No. Tube Size
  AN806, MS24404, AS5168 Pressure Plug AN8063D   3/16
AN8064D   1/4
AN8066D   3/8
AN8068D   1/2
AN80610D   5/8
  AN824, MS24402, AS1035 Tee AN8244D   1/4
AN8246D   3/8
AN8248D   1/2
AN82410D   5/8
AN924, MS24400, AS5178 Bulkhead Nut AN9244D   1/4
AN9246D   3/8
AN9248D   1/2
AN92410D   5/8
  AN815, MS24392, AS5174 Union AN8154D  1/4
AN8156D  3/8
AN8158D  1/2
AN81510D  5/8
  AN827, MS24403, AS1036 Cross AN8274D   1/4
AN8276D   3/8
  AN818, AS5175 Tube Nut AN8184D  1/4
AN8186D  3/8
AN8188D  1/2
AN81810D  5/8
AN821, MS24401, AS1034 90° Elbow AN8214D  1/4
AN8216D  3/8
AN8218D  1/2
AN82110D  5/8
  AN929, AS5177 Pressure Cap AN9293D   3/16
AN9294D   1/4
AN9296D   3/8
AN9298D   1/2
AN92910D   5/8

Pipes, Plugs and Unions

More Info
Call us at 1-800-944-5463 to order!
Top of Page
Mil Spec Style Part No. Tube Size
AN910/AS4859 Coupling AN9102D  1/4
AN9103D   3/8
AN9104D   1/2
  AN916/AS4856 Female 90° Elbow AN9163D   3/8
  AN911/AS4860 Nipple AN9112D   1/4
AN9113D   3/8
AN9114D   1/2
  AN914/AS4854 M/F 90° Elbow AN9142D  1/4
AN9143D  3/8
AN9144D  1/2
AN932/MS27769/AS4864 Hex Plug MS277693D  1/4
MS277694D  3/8
MS977695D  1/2
AN917/AS4857 FemaleTee AN9172D  1/4
AN9173D  3/8
AN9174D  1/2

Pipe to 37° Flare Adpaters

More Info
Call us at 1-800-944-5463 to order!
Top of Page
Mil Spec Style Part No. Tube Size NPT Size
  AN816, AS5194 Pipe to 37° Flare
Male Straight		 AN8164D   1.4 1/8
AN8166D   3/8 1/4
AN8168D   1/5 3/8
AN881610D   5.8 1/2
AN822, MS20822, AS5195 Pipe to 37° Flare
90° Elbow		 MS208224D   1/4 1/8
MS208226D   3/8 1/4
MS208228D   1/2 3/8
MS2082210D   5/8 1/2
AN823, MS20823, AS5196 Pipe to 37° Flare
45 ° Elbow		 MS208234D  1/4 1/8
MS208236D  3/8 1/4
MS208238D  1/2 3/8
MS2082310D  5/8 1/2
AN825, MS20825, AS5197 Pipe to 37° Flare
Tee w/ pipe on side		 MS208254D  1/4 1/8
MS208256D  3/8 1/4
MS208258D  1/2 3/8
  AN826, MS20826, AS5198 Pipe to 37° Flare
Tee w/ pipe on run		 MS208264D  1/4 1/8
MS208266D  3/8 1/4
MS208268D  1/2 3/8

Size and M/F Adapters

More Info
Call us at 1-800-944-5463 to order!
Top of Page
Mil Spec Style Part No. Size
  AN912, AS4861 Pipe Reucer Bushing AN9121D 1/4M 1/8F
AN9122D 3/8M 1/4F
AN9123D 3/8M 1/8F
AN9124D 1/2M 3/8F
  AN919, MS24399, AS5174 Male–Male
37° Flare		 AN9196D   3/8M 1/4M
AN91910D   1/2M 1/4M
AN91912D   1/2M 3/8M
AN894, MS24398, AS5173 Female–Male
37° Flare		 AN894D64 3/8F 1/4M
AN894D84  1/2F 1/4M
AN894D86  1/2F 3/8M
  NAS1564 37° Flare
Female–Male		 NAS156464D  3/8F 1/4M
NAS156484D  1/2F 1/4M
NAS156486D  1/2F 3/8M
NAS1564106D  5/8F 3/8M

AN840 Hose Nipple

More Info
Call us at 1-800-944-5463 to order!
Top of Page
Mil Spec Style Part No. Hose I.D. NPT Size
AN840, AS5183 Straight Hose Nipple AN8404D 1/4 1/8
AN8406D 3/8 1/4
AN8408D 1/2 3/8
AN84010D 5/8 1/2