2930-01-007-4940

Find complete technical information, availability, and procurement data for: 2930-01-007-4940
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2930 Nonaircraft Engine Cooling System Components

National Stock Number

2930-01-007-4940

Item Name Code

30128

Assigment Date

08/05/1975 (51 years ago)

Two or more complete ring, piston grouped for a single piston or for all pistons of an internal combustion engine, air compressor, or the like.

pressurized system for which designed, 1.218 inches nominal overall height, 2.343 inches nominal outside diameter, lugs gripping accommodation type, 2.640 inches nominal overall diameter

Product Characteristics

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

Gripping Accommodation Type: lugs
Outside Diameter: 2.343 inches nominal
Overall Height: 1.218 inches nominal
Overall Diameter: 2.640 inches nominal
System For Which Designed: pressurized
Sealing Length: 0.583 inches minimum and 0.613 inches maximum
Cam Quantity: 2
Pressure Relief Method: manual
Locking Device Type: integral self lock
Maximum Working Pressure: 16.000 pounds per square inch
Features Provided: submersible
Filler Neck Diameter For Which Designed: 2.230 inches nominal
Special Markings: keep tight do not open hot
Material: steel overall
Style Designator: inside cam type w/ lugs

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2930-00-010-0488	No Name Available	11/01/1981
2930-00-419-9360	No Name Available	11/01/1980

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
2998982	Filler Opening Cap
3781 830	Filler Opening Cap
3781763	Filler Opening Cap
3781830	Filler Opening Cap
52079880AA	Filler Opening Cap
A0-0690	Filler Opening Cap
AA02708	Filler Opening Cap

FAQs

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

What is the FSCG of the NSN 2930-01-007-4940?

The FSCG of the NSN 2930-01-007-4940 is 2930

Does the NSN 2930-01-007-4940 have a Schedule B code assigned?

Yes, the Schedule B code is 8412909080

Does NSN 2930-01-007-4940 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 2930-01-007-4940 contain precious materials?

Precious metal content is unknown

Does NSN 2930-01-007-4940 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 2930-01-007-4940 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Tue, Aug 5, 1975