295B

View detailed technical data, stock status, and sourcing information for: 295B
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4310 Compressors and Vacuum Pumps

National Stock Number

4310-00-131-2906

Item Name Code

11459

Assigment Date

01/01/1961 (65 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.

straight face, double scraper, ventilated oil control cross-sectional shape style, 5.250 inches standard bore diameter, concentric ring style, 0.1700 inches minimum and 0.1800 inches maximum radial wall thickness, 0.2490 inches nominal overall width

Product Characteristics

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

Cross-Sectional Shape Style: straight face, double scraper, ventilated oil control
Ring Style: concentric
Radial Wall Thickness: 0.1700 inches minimum and 0.1800 inches maximum
Overall Width: 0.2490 inches nominal
Standard Bore Diameter: 5.250 inches
Joint Style: vertical joint
Oil Passage Type And Quantity: 1 groove and 6 slot outside periphery
Material: iron overall

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
101014PC285	Piston Ring
101027PC285	Piston Ring
101028PC285	Piston Ring
107014PC285	Piston Ring
107027PC285	Piston Ring
107028PC285	Piston Ring
107414PC285	Piston Ring
107427PC285	Piston Ring
107428PC285	Piston Ring
107514PC285	Piston Ring
107527PC285	Piston Ring
107528PC285	Piston Ring
110914PC285	Piston Ring
110927PC285	Piston Ring
110928PC285	Piston Ring
111114PC285	Piston Ring
111127PC285	Piston Ring
111128PC285	Piston Ring
111214PC285	Piston Ring
111227PC285	Piston Ring
111228PC285	Piston Ring
113414PC285	Piston Ring
113427PC285	Piston Ring
113428PC285	Piston Ring
114714PC285	Piston Ring
114727PC285	Piston Ring
114728PC285	Piston Ring
116314PC285	Piston Ring
116327PC285	Piston Ring
116328PC285	Piston Ring
116614PC285	Piston Ring
116627PC285	Piston Ring
116628PC285	Piston Ring
116714PC285	Piston Ring
116728PC285	Piston Ring
11672PC285	Piston Ring
116828PC285	Piston Ring
116914PC285	Piston Ring
116927PC285	Piston Ring
116928PC285	Piston Ring
117028PC285	Piston Ring
117514PC285	Piston Ring
117527PC285	Piston Ring
117528PC285	Piston Ring
118214PC285	Piston Ring
118227PC285	Piston Ring
118228PC285	Piston Ring
118814PC285	Piston Ring
118828PC285	Piston Ring
119628PC285	Piston Ring
119728PC285	Piston Ring
295B	Piston Ring

FAQs

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

What is the FSCG of the NSN 4310-00-131-2906?

The FSCG of the NSN 4310-00-131-2906 is 4310

Does the NSN 4310-00-131-2906 have a Schedule B code assigned?

Yes, the Schedule B code is 8414902095

Does NSN 4310-00-131-2906 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 4310-00-131-2906 contain precious materials?

Precious metal content is unknown

Does NSN 4310-00-131-2906 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 4310-00-131-2906 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961