2670-57 ITEM 82

View detailed technical data, stock status, and sourcing information for: 2670-57 ITEM 82
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-180-2559

Item Name Code

14218

Assigment Date

05/25/1984 (42 years ago)

0.489 inches maximum outside diameter, 35.0 rockwell c minimum and 53.0 rockwell c maximum hardness rating, 0.062 inches minimum and 0.072 inches maximum material thickness, zzzy criticality code justification, 0.255 inches minimum and 0.263 inches maximum hole diameter

Product Characteristics

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

Hole Diameter: 0.255 inches minimum and 0.263 inches maximum
Outside Diameter: 0.489 inches maximum
Material Thickness: 0.062 inches minimum and 0.072 inches maximum
Hardness Rating: 35.0 rockwell c minimum and 53.0 rockwell c maximum
Criticality Code Justification: zzzy
Material: steel comp 420 or steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 overall
Material Document And Classification: 66 fed std all material responses overall
Special Test Features: special quality control testing
Style Designator: split helical-right hand
Nondefinitive Spec/Std Data: b class or c class and 2 style
Reference Number Differentiating Characteristics: as differentiated by material which must conform to ships parts control center special quality control provisions and certified free from mercury contamination

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
2670-57 ITEM 82	Lock Washer
503-4556027 ITEM 82	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-180-2559?

The FSCG of the NSN 5310-01-180-2559 is 5310

Does the NSN 5310-01-180-2559 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-180-2559 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 5310-01-180-2559 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-180-2559 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 5310-01-180-2559 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Fri, May 25, 1984