721T5

View detailed technical data, stock status, and sourcing information for: 721T5
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2520 Vehicular Power Transmission Components

National Stock Number

2520-00-752-1581

Item Name Code

77777

Assigment Date

01/01/1963 (63 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

item consists of five parts,clutch fscm 19207 p/n 8757675,pin fscm 19207 p/n 7521579 6 req'd,ring fscm 19207 p/n 7521577 2 req'd,pin fscm 19207 p/n 5170338 6 req'd,spring fscm 19207 p/n 7521578 6 req'd general characteristics item description, transfer transmission component functional description, c742aa 2 1/2 ton truck end item identification

Product Characteristics

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

End Item Identification: c742aa 2 1/2 ton truck
Functional Description: transfer transmission component
General Characteristics Item Description: item consists of five parts,clutch fscm 19207 p/n 8757675,pin fscm 19207 p/n 7521579 6 req'd,ring fscm 19207 p/n 7521577 2 req'd,pin fscm 19207 p/n 5170338 6 req'd,spring fscm 19207 p/n 7521578 6 req'd

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2520-00-658-8494	No Name Available	01/01/1963

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
2520007521581	Synchronizer Assembly
721T5	Synchronizer Assembly
7521581	Synchronizer Assembly
811E1107	Synchronizer Assembly
913649	Synchronizer Assembly
A3897Y857	Synchronizer Assembly

FAQs

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

What is the FSCG of the NSN 2520-00-752-1581?

The FSCG of the NSN 2520-00-752-1581 is 2520

Does the NSN 2520-00-752-1581 have a Schedule B code assigned?

Yes, the Schedule B code is 8483909500

Does NSN 2520-00-752-1581 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 2520-00-752-1581 contain precious materials?

Precious metal content is unknown

Does NSN 2520-00-752-1581 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 2520-00-752-1581 was assigned to the Federal Catalog?

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