123HM10020-511

View detailed technical data, stock status, and sourcing information for: 123HM10020-511
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-025-0811

Item Name Code

15887

Assigment Date

07/26/1976 (50 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

5.235 inches minimum and 5.265 inches maximum nut diameter, 0.156 inches nominal drive point depth, 3b thread class, round nut style, right-hand thread direction

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: 0.156 inches nominal
Nut Style: round
Nut Diameter: 5.235 inches minimum and 5.265 inches maximum
Nut Thickness: 0.328 inches minimum and 0.358 inches maximum
Drive Point Width: 0.250 inches nominal
Drive Point Quantity: 2
Hole Type And Quantity: 1 tapped
Thread Series: un
Thread Quantity Per Inch: 16
Nominal Thread Size: 4.750 inches
Hole Thread Quantity Per Inch: 32
Hole Configuration Style: configuration j
Countersink Angle: 120.0 degrees nominal nut
Hole Nominal Thread Diameter: 0.138 inches
Special Features: 3 holes 0.047 in. dia equally spaced 120 deg apart for lockwire
Material: aluminum alloy 7075 overall
Material Document And Classification: qq-a-250/12 temper t7351 fed spec single material response overall
Surface Treatment: anodize overall
Surface Treatment Document And Classification: mil-a-8625,ty 2,cl 1 mil spec single treatment response 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
123HM10020-511	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-025-0811?

The FSCG of the NSN 5310-01-025-0811 is 5310

Does the NSN 5310-01-025-0811 have a Schedule B code assigned?

Yes, the Schedule B code is 7616995195

Does NSN 5310-01-025-0811 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 5310-01-025-0811 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-025-0811 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 5310-01-025-0811 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Mon, Jul 26, 1976