2HK503

View detailed technical data, stock status, and sourcing information for: 2HK503
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-274-8715

Item Name Code

14218

Assigment Date

01/01/1963 (63 years ago)

0.489 inches maximum outside diameter, 45.0 rockwell c minimum and 53.0 rockwell c maximum hardness rating, w/s:stream (std. tensioned replenishment at sea method); aircraft, c-2a (repreocured); vehicle, aircraft refueler r-14; test consoles, mini-sace; support equipment, b-1 aircraft; teletype, model 28; helicopter, mh-53e; machine gun, .50 cal, m2, hb, flex & hvytt fixed; aircraft (ac-130h, mc-130h, ec-130e, hc-130); mrap rg-33 and rg-33 auv; multiple launch rocket system (mlrs) end item identification, 0.062 inches minimum material thickness, 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
End Item Identification: w/s:stream (std. tensioned replenishment at sea method); aircraft, c-2a (repreocured); vehicle, aircraft refueler r-14; test consoles, mini-sace; support equipment, b-1 aircraft; teletype, model 28; helicopter, mh-53e; machine gun, .50 cal, m2, hb, flex & hvytt fixed; aircraft (ac-130h, mc-130h, ec-130e, hc-130); mrap rg-33 and rg-33 auv; multiple launch rocket system (mlrs)
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum
Material: steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1080 overall
Surface Treatment: phosphate overall
Surface Treatment Document And Classification: mil-p-16232 ty 2 mil spec single treatment response overall
Style Designator: split helical-right hand
Nondefinitive Spec/Std Data: a class and 2 style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-005-8254	No Name Available	06/01/1981
5310-00-070-6853	No Name Available	11/08/1968
5310-00-222-1763	No Name Available	07/29/1972
5310-00-274-8714	No Name Available	12/22/1969
5310-00-938-5450	No Name Available	09/01/1983
5310-01-193-9516	No Name Available	08/09/1991

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:

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004-003005-067	Lock Washer
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10424432	Lock Washer
115109	Lock Washer
12Z22PC851	Lock Washer
2HK503	Lock Washer
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91X6R	Lock Washer
A20478	Lock Washer
AEW07X250000BD6A81	Lock Washer
DX4289H	Lock Washer
GP34805S2	Lock Washer
MS35337-63	Lock Washer
MS35338-63	Lock Washer
S115109	Lock Washer
SW25205	Lock Washer
XX002-0697	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-274-8715?

The FSCG of the NSN 5310-00-274-8715 is 5310

Does the NSN 5310-00-274-8715 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-274-8715 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 5310-00-274-8715 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-274-8715 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 5310-00-274-8715 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963