Product Details | PISTON RING

2805-00-277-2977 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: 15916A, 3820A, 2805-00-277-2977, 00-277-2977, 2805002772977, 002772977

Engines, Turbines, and Components | Gasoline Reciprocating Engines, Except Aircraft; and Components

Supply Group (FSG) NSN Assign. NIIN
28 01 JAN 1963 00-277-2977

Drawings & Photos | NSN 2805-00-277-2977


Cross Reference | NSN 2805-00-277-2977

Part Number Cage Code Manufacturer
15916A 1ML14 D.W. HERCULES, LLC DBA HERCULES ENGINE COMPONENTS
15916A 28265 HERCULES ENGINE CO INC
3820A 1ML14 D.W. HERCULES, LLC DBA HERCULES ENGINE COMPONENTS
3820A 28265 HERCULES ENGINE CO INC

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Technical Data | NSN 2805-00-277-2977

Characteristic Specifications
MATERIAL IRON OVERALL
SURFACE TREATMENT NICKEL SILVER OVERALL
CROSS-SECTIONAL SHAPE STYLE A1 PLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLE 1 VERTICAL JOINT
RING STYLE 1 CONCENTRIC
RADIAL WALL THICKNESS 0.1670 INCHES MINIMUM AND 0.1770 INCHES MAXIMUM
OVERALL WIDTH 0.1235 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM
STANDARD BORE DIAMETER 4.375 INCHES

Restrictions/Controls & Freight Information | NSN 2805-00-277-2977

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
Less than truck load rating M 85.0
Water commodity Code 593 unknown
Originating Activity Code XX
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 Y Protected cargo, other than above, including sensitive cargo requiring hand-to-hand receipt and/or security precautions.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 2805-00-277-2977

Category Code Description
Cognizance Codes9CNavy-owned stocks of defense construction material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9CDefense Supply Center Columbus
Columbus, OH 43215
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each