AN121503

View detailed technical data, stock status, and sourcing information for: AN121503

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AN121503
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-268-6042
Item Name Code
01857
Assigment Date
01/01/1963 (63 years ago)

0.492 inches minimum and 0.502 inches maximum width across flats, 3b thread class, 0.256 inches minimum and 0.276 inches maximum nut height, hexagon 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
Nut Style
hexagon
Nut Height
0.256 inches minimum and 0.276 inches maximum
Width Across Flats
0.492 inches minimum and 0.502 inches maximum
Thread Series
unf
Thread Quantity Per Inch
24
Hardness Rating
19.0 rockwell c minimum and 26.0 rockwell c maximum
Nominal Thread Size
0.312 inches
Countersink Angle
85.0 degrees minimum and 95.0 degrees maximum nut
Criticality Code Justification
feat
Bearing Surface Type
washer faced
Bearing Surface Finish
63.0 microinches
Special Features
critical features,tolerances,fit restrictions,material properties and manufacturing process
Material
steel comp 8740 overall
Material Document And Classification
ams 6322 assn std single material response overall
Surface Treatment
cadmium overall
Surface Treatment Document And Classification
ams 2400 assn std 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
879-026C Hexagon Plain Nut
AN121503 Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-268-6042?
The FSCG of the NSN 5310-00-268-6042 is 5310
Does the NSN 5310-00-268-6042 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-268-6042 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 5310-00-268-6042 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-268-6042 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 5310-00-268-6042 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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