K874269-011

View detailed technical data, stock status, and sourcing information for: K874269-011
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-473-1363

Item Name Code

01861

Assigment Date

03/28/2000 (26 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

3b thread class, 0.370 inches minimum and 0.380 inches maximum pilot length, +1.8969 to 1.9021 inches thread pitch diameters, spline nut style, 2.787 inches minimum and 2.792 inches maximum pilot diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3b
Thread Pitch Diameters: +1.8969 to 1.9021 inches
Pilot Diameter: 2.787 inches minimum and 2.792 inches maximum
Pilot Length: 0.370 inches minimum and 0.380 inches maximum
Nut Style: spline
Nut Diameter: 2.787 inches minimum and 2.792 inches maximum
Nut Height: 0.570 inches minimum and 0.580 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 16
Hardness Rating: 34.0 rockwell c minimum and 38.0 rockwell c maximum
Nominal Thread Size: 1.938 inches
Special Features: heat treat to 150 ksi tensile strength; external 44 tooth spline, major dia. 2.787 - 2.792 in., minor dia. 2.6656 in. minimum, flat root; 18 equally spaced slots 0.175 - 0.180 in. width
Material: steel comp 4340 overall
Surface Treatment: aluminum and chromate overall

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
K874269-011	Spline Plain Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-01-473-1363?

The FSCG of the NSN 5310-01-473-1363 is 5310

Does the NSN 5310-01-473-1363 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-473-1363 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-01-473-1363 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-473-1363 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-01-473-1363 was assigned to the Federal Catalog?

It was assigned 26 years ago, on Tue, Mar 28, 2000