AF-256

View detailed technical data, stock status, and sourcing information for: AF-256
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2520 Vehicular Power Transmission Components

National Stock Number

2520-00-806-0007

Item Name Code

11034

Assigment Date

01/01/1962 (64 years ago)

3.250 inches maximum outside diameter, 1.560 in.id;w/2.000 in.by 4.000 in.by 0.440 in.lg mtg thd special features, 2.000 inches maximum overall length, steel body material

Product Characteristics

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

Outside Diameter: 3.250 inches maximum
Overall Length: 2.000 inches maximum
Body Material: steel
Special Features: 1.560 in.id;w/2.000 in.by 4.000 in.by 0.440 in.lg mtg thd

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4310-00-075-8682	No Name Available	08/08/1973

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
189951H1	Breather
674905	Breather
7-674905	Breather
AF-2167	Breather
AF-256	Breather
AF-490	Breather
AF0025600	Breather
AR-106	Breather
CA4PL	Breather
J0000101	Breather
PA-1672	Breather
PMA-123	Breather
SA-187	Breather

FAQs

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

What is the FSCG of the NSN 2520-00-806-0007?

The FSCG of the NSN 2520-00-806-0007 is 2520

Does the NSN 2520-00-806-0007 have a Schedule B code assigned?

Yes, the Schedule B code is 8483909500

Does NSN 2520-00-806-0007 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 2520-00-806-0007 contain precious materials?

Precious metal content is unknown

Does NSN 2520-00-806-0007 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 2520-00-806-0007 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962