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FD40 Series MIL-C-4109 Interchange
The FD40 Series offers a one-hand push-to-connect latch ideal for compressed air service, utilizing a ball latching mechanism. The female half features self-sealing poppet valves, preventing air loss while disconnected. The male half uses a straight through non-valved design.
Product Features
. Automatic sleeve for one-. Meet dimensional . Standard seal material – . Standard body material hand push-to-connect requirements of MIL-C-Buna-N (Female) – Brass operation with pin 4109 for industrial
. Standard body material
latching mechanism interchangeability (Male) – High resistance
. Protective sleeve lock . Swivels 360°, eliminating carbon steel with zinc prevents accidental hose kinking trivalent chromate plating disconnection
Physical Characteristics
Body Max. operating Min. Burst Pressure Vacuum Size Pressure Female Half only Connected Connected only
bar (psi) bar (psi) bar (psi) (in./Hg)
FD40 Series MIL-C-4109 Interchange
3/8 21 (300) 210 (3,000) 560 (8,000) 28
Applications Flow Data
Pressure Drop Versus Flow Graph
.
Compressed air
.
Pneumatic tools
5
. MIL-C-4109 Interchange 4
3
Pressure Drop in PSI
Pressure Drop in PSI
2
1
0.8
0.6
0.5
0.4
0.3
0.2
0.1
Cubic Feet Per Minute Flow
Test Fluid: Air at 100 PSI Inlet Pressure
AIR
COUPLINGS
eaton Quick Disconnect Couplings E-MEQD-MC001-E2
67
FD40 Series
NFPA standard T3.20.15 HTMA Interchange
Figure 1 Figure 2
Dimensions — Female Pipe
Part Coupling Body Port Dimensions number type Size Size thread type Fig. a B Hex
Figure 3
mm (in) mm (in) mm (in)
FD40-1013-02-04 Male 1/4 1/8 1/8-27 Female NPT 3 30.7 (1.21) - - 14.2 (.56)
FD40-1054-04-04 Female 1/4 1/4 1/4-18 Female NPT 1 58.6 (2.11) 30.2 (1.19) 17.5 (.69)
FD40-1013-04-04 Male 1/4 1/4 1/4-18 Female NPT 3 41.1 (1.62) - - 15.7 (.62)
FD40-1054-06-04 Female 1/4 3/8 3/8-18 Female NPT 1 58.6 (2.11) 30.2 (1.19) 19.1 (.75)
FD40-1013-06-04 Male 1/4 3/8 3/8-18 Female NPT 3 45.7 (1.(80) - - 22.4 (.88)
FD40-1054-04-06 Female 3/8 1/4 1/4-18 Female NPT 1 53.3 (2.10) 35.1 (1.38) 22.4 (.88)
FD40-1054-06-06 Female 3/8 3/8 3/8-18 Female NPT 1 59.7 (2.35) 35.1 (1.38) 22.4 (.88)
FD40-1013-06-06 Male 3/8 3/8 3/8-18 Female NPT 3 48.3 (1.90) - - 22.4 (.88)
FD40-1054-08-08 Female 1/2 1/2 1/2-14 Female NPT 1 78.0 (3.60) 43.4 (1.71) 25.4 (1.00)
FD40-1013-08-08 Male 1/2 1/2 1/2-14 Female NPT 3 61.0 (2.40) - - 28.4 (1.12)
Dimensions — Male Pipe
Part number Coupling type Body Size Port Size thread type Fig. Dimensions a B Hex
mm (in) mm (in) mm (in)
FD40-1055-04-04 Female 1/4 1/4 1/4-18 Male NPT 2 55.6 (2.19) 30.2 (1.19) 17.5 (0.69)
FD40-1014-04-04 Male 1/4 1/4 1/4-18 Male NPT 4 42.9 (1.69) - - 14.2 (0.56)
FD40-1055-06-04 Female 1/4 3/8 3/8-18 Male NPT 2 54.6 (2.15) 30.2 (1.19) 17.5 (0.69)
FD40-1014-06-04 Male 1/4 3/8 3/8-18 Male NPT 4 44.5 (1.75) - - 17.5 (0.69)
FD40-1014-02-04 Male 1/4 1/8 1/8-27 Male NPT 4 38.1 (1.50) - - 12.7 (0.50)
FD40-1055-06-06 Female 3/8 3/8 3/8-18 Male NPT 2 59.7 (2.35) 35.1 (1.38) 22.4 (0.88)
FD40-1014-06-06 Male 3/8 3/8 3/8-18 Male NPT 4 47.8 (1.88) - - 17.5 (0.69)
FD40-1014-04-06 Male 3/8 1/4 1/4-18 Male NPT 4 47.8 (1.88) - - 15.7 (0.62)
FD40-1014-08-06 Male 3/8 1/2 1/2-14 Male NPT 4 54.1 (2.13) - - 22.4 (0.88)
FD40-1055-08-08 Female 1/2 1/2 1/2-14 Male NPT 2 75.5 (2.97) 38.1 (1.50) 25.4 (1.00)
FD40-1014-08-08 Male 1/2 1/2 1/2-14 Male NPT 4 62.0 (2.44) - - 22.4 (0.88)
FD40-1014-06-08 Male 1/2 3/8 3/8-18 Male NPT 4 55.4 (2.18) - - 17.5 (0.69)
AIRCOUPLINGS
68
eaton Quick Disconnect Couplings E-MEQD-MC001-E2
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