HK 251

View detailed technical data, stock status, and sourcing information for: HK 251
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-462-8440

Item Name Code

03263

Assigment Date

02/19/1999 (27 years ago)

A grouping of two or more different types of electrical/electronic components mounted on a common mounting. It may include an assembly of electrical/electronic components mounted on multiple printed wiring board(s) mounted back to back, stacked, and the like. The item is generally a component of a subassembly and cannot be assigned a more definite item name. Excludes:items which may be identified as a subassembly. For an assembly of electrical/electronic components mounted on a single printed wiring board, see circuit card asseembly. Do not use if a more specific name applies.

2.500 inches nominal width, 2.500 inches nominal inside diameter, 1.125 inches nominal shank diameter, straight shank style, 1.000 inches nominal shank length

Product Characteristics

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

Inside Diameter: 2.500 inches nominal
Shank Length: 1.000 inches nominal
Shank Diameter: 1.125 inches nominal
Shank Style: straight
Width: 2.500 inches nominal
Gripping Surface Condition: smooth
Length: 2.500 inches nominal
Attachment Method: screw on
Overall Thickness: 0.500 inches nominal
Material Transparency: opaque
Thread Quantity Per Inch: 13 receptacle
Nominal Thread Size: 0.500 inches receptacle
Material: iron cast
Style Designator: cross
Thread Series Designator: unc screw hole

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5355-01-056-5137	No Name Available	05/01/1999

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
HK 251	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-462-8440?

The FSCG of the NSN 5355-01-462-8440 is 5355

Does the NSN 5355-01-462-8440 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-462-8440 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 5355-01-462-8440 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-01-462-8440 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 5355-01-462-8440 was assigned to the Federal Catalog?

It was assigned 27 years ago, on Fri, Feb 19, 1999