305803

View detailed technical data, stock status, and sourcing information for: 305803
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-687-6511

Item Name Code

05280

Assigment Date

01/01/1963 (63 years ago)

0.130 inches minimum and 0.135 inches maximum mounting hole diameter, plate nut style, prevailing torque all metal design locking feature, 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
Mounting Hole Diameter: 0.130 inches minimum and 0.135 inches maximum
Nut Style: plate
Nut Length: 1.266 inches minimum and 1.296 inches maximum
Nut Height: 0.458 inches minimum and 0.473 inches maximum
Plate Thickness: 0.037 inches minimum and 0.047 inches maximum
Plate Width: 0.803 inches minimum and 0.823 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: 0.998 inches minimum and 1.002 inches maximum
Thread Series: unf
Features Provided: floating nut
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.312 inches
Material: iron alloy 660 nut
Material Document And Classification: ams 5510 assn std 1st material response base
Material Document And Classification: ams 5732 assn std 2nd material response nut
Surface Treatment: passivate base
Surface Treatment: silver nut

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
305803	Plate Self-Locking Nut
ZA21-2860-054	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-687-6511?

The FSCG of the NSN 5310-00-687-6511 is 5310

Does the NSN 5310-00-687-6511 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-687-6511 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 5310-00-687-6511 contain precious materials?

Item contains silver.

Does NSN 5310-00-687-6511 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 5310-00-687-6511 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963