656383

View detailed technical data, stock status, and sourcing information for: 656383
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-406-2883

Item Name Code

15887

Assigment Date

04/10/1970 (56 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

5.250 inches minimum and 5.270 inches maximum nut diameter, 0.315 inches minimum and 0.335 inches maximum drive point depth, round nut style, 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
Drive Point Depth: 0.315 inches minimum and 0.335 inches maximum
Nut Style: round
Nut Diameter: 5.250 inches minimum and 5.270 inches maximum
Nut Thickness: 1.015 inches minimum and 1.025 inches maximum
Drive Point Width: 0.365 inches minimum and 0.385 inches maximum
Drive Point Quantity: 16
End Item Identification: tf30 acft engine
Thread Series: unj
Thread Quantity Per Inch: 16
Nominal Thread Size: 4.875 inches
Special Features: dwg name nut-bearing,internally threaded, 4.875-16 x 1.020
Material: steel comp 8740 overall
Surface Treatment: silver 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
656383	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-406-2883?

The FSCG of the NSN 5310-00-406-2883 is 5310

Does the NSN 5310-00-406-2883 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-406-2883 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 5310-00-406-2883 contain precious materials?

Item contains silver.

Does NSN 5310-00-406-2883 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 5310-00-406-2883 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Apr 10, 1970