F52750-4-5

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-269-1375

Item Name Code

05280

Assigment Date

12/12/1987 (38 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

prevailing torque all metal design locking feature, dry film lubricant lubrication, 0.098 inches minimum and 0.103 inches maximum mounting hole diameter, right-hand thread direction, 3b thread class

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 Direction: right-hand
Locking Feature: prevailing torque all metal design
Lubrication: dry film lubricant
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate
Nut Length: 1.312 inches nominal
Nut Height: 0.538 inches maximum
Plate Thickness: 0.045 inches maximum
Plate Width: 0.554 inches maximum
Nut Mounting Provision: straight holes
Mounting Hole Arrangement Style: 2 holes
Distance From Aperture Center To Mounting Hole Center: 0.495 inches minimum and 0.505 inches maximum
Center To Center Distance Between Mounting Holes Along Length: 0.310 inches minimum and 0.314 inches maximum
Temp Rating: 450.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: iron alloy 660 nut
Material: iron alloy 660 shell
Material: steel corrosion resisting clip
Surface Treatment: passivate clip

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
F52750-4-5	Plate Self-Locking Nut
LE114-0127-0405	Plate Self-Locking Nut
NS202622-4-5	Plate Self-Locking Nut
RF140-0405	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-269-1375?

The FSCG of the NSN 5310-01-269-1375 is 5310

Does the NSN 5310-01-269-1375 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-269-1375 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 5310-01-269-1375 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-269-1375 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 5310-01-269-1375 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Dec 12, 1987