557380

View detailed technical data, stock status, and sourcing information for: 557380
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-011-2659

Item Name Code

15887

Assigment Date

05/01/1968 (58 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.)

right-hand thread direction, 1.915 inches minimum and 1.919 inches maximum nut diameter, 0.065 inches minimum and 0.075 inches maximum drive point depth, round nut style, 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: 0.065 inches minimum and 0.075 inches maximum
Nut Style: round
Nut Diameter: 1.915 inches minimum and 1.919 inches maximum
Nut Thickness: 0.270 inches minimum and 0.290 inches maximum
Drive Point Quantity: 12
Thread Series: unjef
Thread Quantity Per Inch: 18
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum
Nominal Thread Size: 1.375 inches
Special Features: nut chamfered on both sides 0.080 in. deep by 45 degrees
Material: steel comp 8740 overall
Material Document And Classification: ams 6322 assn std 1st material response or ams 6323 assn std 2nd material response overall
Precious Material And Location: contact points silver
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams 2410 assn std 1st treatment response or ams 2412 assn std 2nd 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
557380	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-011-2659?

The FSCG of the NSN 5310-00-011-2659 is 5310

Does the NSN 5310-00-011-2659 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-011-2659 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 5310-00-011-2659 contain precious materials?

Item contains silver.

Does NSN 5310-00-011-2659 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 5310-00-011-2659 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, May 1, 1968