Military Standard MS21921-4J Stainless Steel Nut, Tube Coupling

The MS211921-4J is a tube coupling nut; it is made of corrosion resistant steel (CRES). See below for this nut's specifications.

*Unless otherwise noted, values are in inches

• Material: Steel (Composition 304)
• Material Document and Classification: QQ-S-763, Class 304
• Surface Treatment: Passivate
• Surface Treatment Document and Classification: MIL-S-5002
• Thread Class: 3B
• Thread Direction: Right-hand
• Fabrication Method: Machined
• Nut Style: Tube coupling
• Nominal Nut Height: .720
• Nominal Width Across Flats: .562
• Nominal Length to Shoulder: .547
• Nominal Smallest Inside Diameter: .300
• Thread Series: UNJF
• Thread Quantity (per inch): 20
• Nominal Thread Size: .438
• Nominal Tube Outside Diameter: .250
• Nominal Seat Angle: 45 degrees