Tube Fitting Locknut

Model / MPN: 5811-0403 | NSN: 4730-00-453-6187

An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing rin (s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1) , plain, hexagon.

Product Details

NATO Stock Number

4730-00-453-6187

Sold in multiples of

100 EA

DEMIL

Thread Class

Thread Direction

Right-hand

Nut Style

Tube fitting locknut

Nut Height

0.281 inches

Width Across Flats

0.688 inches

Thread Series

Unf

Packing Recess Diameter

0.608 inches

Packing Recess Depth

0.042 inches

Thready Qty Per Inch (tpi)

Thread Size

0.438 inches

Tube Outside Diameter

0.250 inches

Material

Steel comp 304

Material Specification

Qq-s-763, class 304 federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35, type 1 federal specification single treatment response

5811 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE7M117Q0170	Locknut, Tube Fittin	2540	EA	12/06/2016
SPE7M917Q0187	Locknut, Tube Fittin	5260	EA	02/17/2017
SPE4A718T421P	Locknut, Tube Fittin	3179	EA	06/15/2018
SPE4A718T743E	Locknut, Tube Fittin	1341	EA	09/14/2018

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

5811-0403 Cross Reference

AN6289-4J
AS4841
AS5179
AN6289J4
AS5179J04
5599883-1
AS5179J04
AN6289J4
AN6289J4
10086141