Product Details | PISTON RING

4310-00-491-5026 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.20628050063Gasoline Reciprocating Engines, Except Aircraft; and Components28100068Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components28150029Diesel Engines and Components28250029Steam Turbines and Components30400042Miscellaneous Power Transmission Equipment43100028Compressors and Vacuum Pumps

Part Alternates: R33225, 34R332251, 34R33225-1, 4310-00-491-5026, 00-491-5026, 4310004915026, 004915026

Pumps and Compressors | Compressors and Vacuum Pumps

Supply Group (FSG) NSN Assign. NIIN
43 06 JUN 1969 00-491-5026

Drawings & Photos | NSN 4310-00-491-5026


Cross Reference | NSN 4310-00-491-5026

Part Number Cage Code Manufacturer
34R33225-1 23587 FRICK CO
R33225 23587 FRICK CO

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Technical Data | NSN 4310-00-491-5026

Characteristic Specifications
MATERIAL STEEL OVERALL
SURFACE TREATMENT PHOSPHATE OVERALL
CROSS-SECTIONAL SHAPE STYLE A54 BEVELED FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL
JOINT STYLE 3 STEP JOINT
RING STYLE 1 CONCENTRIC
RADIAL WALL THICKNESS 0.2550 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM
OVERALL WIDTH 0.4970 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM
OIL PASSAGE TYPE AND QUANTITY 8 SLOT HORIZONTALLY THROUGH RING 1 GROOVE OUTSIDE PERIPHERY
PIN HOLE STYLE 3 HALF ROUND PINHOLE AT JOINT
PIN HOLE SLOT LENGTH 0.140 INCHES NOMINAL
RING WIDTH PIN HOLE DEPTH 0.015 INCHES MINIMUM AND 0.030 INCHES MAXIMUM
STANDARD BORE DIAMETER 7.000 INCHES

Restrictions/Controls & Freight Information | NSN 4310-00-491-5026

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 126700 PISTON RINGS,IRON
Less than car load rating P 77.5
Less than truck load rating M 85.0
Water commodity Code 594 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4310-00-491-5026

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesLLOCAL PURCHASE # (NON-STOCKED ITEMS) Defense Logistics Agency (DLA)/GSA/Service/Agency-managed items authorized for local purchase as normal means of support at base, post, camp or station level. Item not stocked in wholesale distribution system of IMM/Service/Agency ICP.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each