254950C91

View detailed technical data, stock status, and sourcing information for: 254950C91
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-129-1393

Item Name Code

77777

Assigment Date

12/04/1968 (57 years ago)

steel o/a; flexible rubber insert between damper and hub; hub accommodates 1.500 in. shaft,8 thd mtg holes equally spaced on 4.250 in. bolt circle,0.313-24 unf-2b-rh thd size,8.250 in. o/a dia. 2.250 in. o/a thr general characteristics item description

Product Characteristics

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

General Characteristics Item Description: steel o/a; flexible rubber insert between damper and hub; hub accommodates 1.500 in. shaft,8 thd mtg holes equally spaced on 4.250 in. bolt circle,0.313-24 unf-2b-rh thd size,8.250 in. o/a dia. 2.250 in. o/a thr

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-256-2182	No Name Available	05/01/1981

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
254950C91	Crankshaft Damper Assembly
322422C91	Crankshaft Damper Assembly

FAQs

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

What is the FSCG of the NSN 2990-00-129-1393?

The FSCG of the NSN 2990-00-129-1393 is 2990

Does NSN 2990-00-129-1393 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 2990-00-129-1393 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-129-1393 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 2990-00-129-1393 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Dec 4, 1968