G-40

View detailed technical data, stock status, and sourcing information for: G-40
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2590 Miscellaneous Vehicular Components

National Stock Number

2590-01-187-2806

Item Name Code

30128

Assigment Date

08/21/1984 (42 years ago)

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes:packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

2590-01-187-2806, filler opening cap

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2590-00-994-2536	No Name Available	12/01/2022

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
AX-1195	Filler Opening Cap
G-30	Filler Opening Cap
G-40	Filler Opening Cap
GT-62	Filler Opening Cap
MGC40	Filler Opening Cap

FAQs

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

What is the FSCG of the NSN 2590-01-187-2806?

The FSCG of the NSN 2590-01-187-2806 is 2590

Does the NSN 2590-01-187-2806 have a Schedule B code assigned?

Yes, the Schedule B code is 8309100000

Does NSN 2590-01-187-2806 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 2590-01-187-2806 contain precious materials?

Item does not contain precious metal.

Does NSN 2590-01-187-2806 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 2590-01-187-2806 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Aug 21, 1984