2990-00-391-7581

Find complete technical information, availability, and procurement data for: 2990-00-391-7581
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 2990-00-391-7581 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-391-7581

Item Name Code

77777

Assigment Date

01/01/1963 (63 years ago)

steel,sq flange end,5.563 in. sq,w/eight 0.813 in. id bolt holes spaced 2.250 in. c to c,raised rd flange on other end,5.500 in. od,3.063 in. id,0.500 in. thk,four 0.563 in. dia bolt holes on 4.500 in. dia bolt circle,w/raised face,3.500 in. @od 0.188 in. h; 2.500 in. o/a h 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,sq flange end,5.563 in. sq,w/eight 0.813 in. id bolt holes spaced 2.250 in. c to c,raised rd flange on other end,5.500 in. od,3.063 in. id,0.500 in. thk,four 0.563 in. dia bolt holes on 4.500 in. dia bolt circle,w/raised face,3.500 in. @od 0.188 in. h; 2.500 in. o/a h

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
198018	Base

FAQs

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

What is the FSCG of the NSN 2990-00-391-7581?

The FSCG of the NSN 2990-00-391-7581 is 2990

Does NSN 2990-00-391-7581 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 2990-00-391-7581 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-391-7581 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 2990-00-391-7581 was assigned to the Federal Catalog?

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