4385-2

View detailed technical data, stock status, and sourcing information for: 4385-2
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2590 Miscellaneous Vehicular Components

National Stock Number

2590-01-165-0763

Item Name Code

30128

Assigment Date

10/25/1983 (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.

1.000 inches nominal overall height, 0.500 inches nominal thread length, 5.250 inches nominal outside diameter, hemtt family (heavy expanded mobility tactical trucks) end item identification, pressurized system for which designed

Product Characteristics

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

Thread Length: 0.500 inches nominal
Outside Diameter: 5.250 inches nominal
Overall Height: 1.000 inches nominal
End Item Identification: hemtt family (heavy expanded mobility tactical trucks)
System For Which Designed: pressurized
Retaining Device Type: chain and wire hook
Pressure Relief Method: automatic
Thread Diameter: 4.000 inches nominal
Color: yellow
Material: copper alloy 377 overall
Style Designator: non-vented threaded type (internal)
Thread Series Designator: npt

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
2590011650763	Filler Opening Cap
2AT546	Filler Opening Cap
4385-2	Filler Opening Cap
B6747	Filler Opening Cap
C3571	Filler Opening Cap

FAQs

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

What is the FSCG of the NSN 2590-01-165-0763?

The FSCG of the NSN 2590-01-165-0763 is 2590

Does the NSN 2590-01-165-0763 have a Schedule B code assigned?

Yes, the Schedule B code is 8309100000

Does NSN 2590-01-165-0763 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 2590-01-165-0763 contain precious materials?

Item does not contain precious metal.

Does NSN 2590-01-165-0763 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 2590-01-165-0763 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Oct 25, 1983