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SMA Coupling Nuts attach ferrules to laser or cables and adapters

SMA Coupling Nuts

  • SMA Coupling Nuts securely attach ferrules to lasers or interface devices like cables and adapters.

  • They are crucial for maintaining the ferrule’s position while tightening the connector.

Optical fiber connectivity

Customize Your Product

Material Options

  • Available in nickel-plated brass, stainless steel, or plastic.

Design Choices

  • Choose from round or hexagonal shapes, with the option of a straight or knurled grip for enhanced tightening.

Customization

  • All Coupling nuts are bulk packing (100 per bag)

  • Standard plastic nuts come in black, with custom colors available for larger orders.

  • All Coupling nuts have a thread size of 1/4x36 2B UNS

  • Nuts can feature the Amphenol logo, no logo, or a custom design.

Custom logos require an additional cost and a higher minimum order quantity.

Optical fiber connectivity

SMA Coupling Nuts

Part number
Description
Material
Type
Logo
Diameter "OD" in Inches (Over Knurl)
Length
905-5190-P
SMA Coupling Nut, Short Version
Stainless Steel
Knurl
yes
7.925 mm (0.312 +0.005 / -0.005 ")
6.78 mm(0.267)
905-5385-P
SMA Coupling Nut, Quad Thread
Stainless Steel
Knurl Quad Thread
yes
8.128 mm (0.320 +0.010 / - 0.010")
7.112 mm (0.28")
905-5191-N-P
SMA Coupling Nut, Standard
Nickel Plated Brass
Knurl
no
7.925 mm (0.312 +0.005 / -0.005 ")
7.112 mm (0.28")
905-5191-P
SMA Coupling Nut, Standard
Nickel Plated Brass
Knurl
Yes
7.925 mm (0.312 +0.005 / -0.005 ")
7.112 mm (0.28")
905-5169-P
SMA Coupling Nut, Plastic, Black
Plastic
Knurl
yes
7.925 mm (0.312 +0.005 / -0.005 ")
7.112 mm (0.28")
905-5296-P
SMA Coupling Nut, Tight Tolerance .314" OD
Nickel Plated Brass
Knurl
Yes
7.97 mm (0.314 +0.001 / -0.000")
7.112 mm (0.28")
905-5330-P
SMA Coupling Nut, Tight Tolerance, .312" OD
Nickel Plated Brass
Knurl
Yes
7.92 mm (.312 +0.001 / -0.000)
7.112 mm (0.28")
905-5377-P
SMA Coupling Nut, Tight Tolerance .315 OD
Nickel Plated Brass
Knurl
Yes
8.001 mm (0.315 +0.010 / -0.10")
7.112 mm (0.28")

Hex Nuts

Part number
Description
Material
Type
Logo
Diameter "OD" in Inches (Over Knurl)
Length

Bulk Packing Options for Existing Part Numbers

Bulk Quantity
Suffix to Add
100
-P
1000
-Z
500
-Y
SMA Coupling Nuts medical connections
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