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NSN 2805-00-274-3331, 2805002743331
RING,PISTON

Federal Supply Classification
FSC 2805 - Gasoline Reciprocating Engines, Except Aircraft; and Components
National Item Identification Number
NIIN 002743331
Codification Country
United States
Item Name Code
INC 11459
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 2805-00-274-3331

National Stock Number (NSN) 2805-00-274-3331, or NIIN 002743331, (ring,piston) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 11459. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2805002743331 does not contain precious metals.

This NSN is associated to Schedule B 8409918000: parts for spark-ignition internal combustion piston engines, nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333618: other engine equipment manufacturing.

This information was last updated on .


Technical Characteristics

CROSS-SECTIONAL SHAPE STYLE
(AAGR) STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
JOINT STYLE
(ADTE) VERTICAL JOINT
OVERALL WIDTH
(ACXJ) 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) WS 85-1 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) IRON OVERALL
OIL PASSAGE TYPE AND QUANTITY
(CQKZ) 1 GROOVE OUTSIDE PERIPHERY
OIL PASSAGE TYPE AND QUANTITY
(CQKZ) 8 SLOT HORIZONTALLY THROUGH RING
RADIAL WALL THICKNESS
(ACXF) 0.1540 INCHES MINIMUM AND 0.1640 INCHES MAXIMUM
RING STYLE
(ACXD) CONCENTRIC
STANDARD BORE DIAMETER
(ACXZ) 3.750 INCHES

Manufacturer Part Numbers

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RNVC
2
78220A

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RNCC
5
RNVC
9
H3911A

RNCC
5
RNVC
2

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