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Tube Nipple

Model / MPN: 741X4 | NSN: 4730-00-063-8785
ITAR Registered seal

A straight, one-piece fitting used to join a tube or tube fitting to another tube or tube fitting. It may have any type externally threaded tube connections of the same size on both ends and is usually shaped externally at the center to accommodate a wrench. It may include nuts, sleeves, and/or grommets.

Product Details
NATO Stock Number
Sold in multiples of
1 EA
Thread Class
2a 1st end bulkhead
Thread Class
2a all ends
Connection Style
Compression (tube) all ends
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
24 1st end bulkhead
Thready Qty Per Inch (tpi)
24 all ends
Thread Size
0.438 inches 1st end bulkhead
Thread Size
0.438 inches all ends
Seat Radius
0.620 inches all ends
Outside Diameter Tube Accommodated
0.250 inches all ends
2.220 inches
Copper alloy 360 or copper alloy 345
Style Designator
Long w/ offset wrenching facility
Thread Series Designator
Uns all ends
Thread Series Designator
Uns 1st end bulkhead
Furnished Items And Quantity
2 tube coupling nut w/sleeve and 1 bulkhead nut

Pricing and Availability

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741X4 Cross Reference
  • 741X4
  • 62CABH-4