12728B18B

View detailed technical data, stock status, and sourcing information for: 12728B18B
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-380-1559

Item Name Code

13393

Assigment Date

09/15/1993 (32 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.120 inches minimum and 0.150 inches maximum thickness, 0.810 inches nominal hole diameter, round center hole shape style, round peripheral shape style, rectangular cross-sectional shape style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Cross-Sectional Shape Style: rectangular
Hole Diameter: 0.810 inches nominal
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.120 inches minimum and 0.150 inches maximum
Overall Diameter: 1.440 inches nominal
Surface Finish: 63.0 microinches all surfaces
Special Features: no mercury,mercury contamination or mercury compounds
Material: nickel alloy 625 overall
Material Document And Classification: astmb444 assn std single material 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
12132F18-246E	Flat Washer
12264B18	Flat Washer
12728B18B	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-01-380-1559?

The FSCG of the NSN 5310-01-380-1559 is 5310

Does the NSN 5310-01-380-1559 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5310-01-380-1559 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 5310-01-380-1559 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-380-1559 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 5310-01-380-1559 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Wed, Sep 15, 1993