6487503

View detailed technical data, stock status, and sourcing information for: 6487503
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-107-4025

Item Name Code

36098

Assigment Date

07/26/1968 (58 years ago)

A device designed to withdraw blow-by fumes from the engine and recirculate them into the combustion chamber. Consists of items as a plunger, spring, body and the like. Excludes:valve (1), air pressure relief and valve safety relief.

2.215 inches nominal overall length, 0.895 inches nominal largest outside diameter, straight design form, 2 connection quantity, unthreaded external hose, plain connection type

Product Characteristics

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

Overall Length: 2.215 inches nominal
Largest Outside Diameter: 0.895 inches nominal
Design Form: straight
Connection Quantity: 2
Connection Type: unthreaded external hose, plain
Body Material: steel

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2805-00-848-4095	No Name Available	11/01/1983
2940-01-008-8321	No Name Available	11/01/1983

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
161832	Positive Crankcase Ventila Valve
5646228	Positive Crankcase Ventila Valve
5646286	Positive Crankcase Ventila Valve
5647228	Positive Crankcase Ventila Valve
5647362	Positive Crankcase Ventila Valve
6418439	Positive Crankcase Ventila Valve
6418440	Positive Crankcase Ventila Valve
6418526	Positive Crankcase Ventila Valve
6418753	Positive Crankcase Ventila Valve
6418754	Positive Crankcase Ventila Valve
6419534	Positive Crankcase Ventila Valve
6420192	Positive Crankcase Ventila Valve
6420411	Positive Crankcase Ventila Valve
6420876	Positive Crankcase Ventila Valve
6421131	Positive Crankcase Ventila Valve
6421971	Positive Crankcase Ventila Valve
6421972	Positive Crankcase Ventila Valve
6484848	Positive Crankcase Ventila Valve
6487503	Positive Crankcase Ventila Valve
CV609C	Positive Crankcase Ventila Valve
FV111	Positive Crankcase Ventila Valve
PCV281	Positive Crankcase Ventila Valve
PV-612	Positive Crankcase Ventila Valve

FAQs

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

What is the FSCG of the NSN 2990-00-107-4025?

The FSCG of the NSN 2990-00-107-4025 is 2990

Does the NSN 2990-00-107-4025 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 2990-00-107-4025 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 2990-00-107-4025 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-00-107-4025 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 2990-00-107-4025 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Jul 26, 1968