NSN 2805-00-640-8637 MS139327, MS13932-7, MS393497

Product Details | PISTON RING

2805-00-640-8637 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: MS139327, MS13932-7, MS393497, MS39349-7, F162A232, 45146776, 4514677-6, 56285, 2805-00-640-8637, 00-640-8637, 2805006408637, 006408637

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

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
28	01 JAN 1963	00-640-8637	11459 ( RING, PISTON )

Drawings & Photos | NSN 2805-00-640-8637

Part Number	Request Date	QTY	Origin
2805-00-640-8637	2018-07-197	30	DIBBS
2805-00-640-8637	2018-07-185	30	DIBBS
2805-00-640-8637	2017-08-243	32	DIBBS
2805-00-640-8637	2017-04-93	16	DIBBS
2805-00-640-8637	2017-03-81	16	DIBBS
2805-00-640-8637	2016-09-274	16	DIBBS
2805-00-640-8637	2016-09-263	16	DIBBS

Cross Reference | NSN 2805-00-640-8637

Part Number	Cage Code	Manufacturer
4514677-6	6N299	AGCO CORP PARTS OPN
56285	96046	CRANE PUMPS & SYSTEMS, INC.
F162A232	14351	TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV
MS13932-7	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS39349-7	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Related Products | NSN 2805-00-640-8637

2805-00-640-8643, 2805-00-640-8646, 2805-00-640-8647, 2805-00-641-7065, 2805-00-641-7390

Technical Data | NSN 2805-00-640-8637

Characteristic	Specifications
MATERIAL	IRON OVERALL
CROSS-SECTIONAL SHAPE STYLE	A4 STRAIGHT FACE, BOTTOM RELIEF
JOINT STYLE	1 VERTICAL JOINT
RING STYLE	1 CONCENTRIC
RADIAL WALL THICKNESS	0.1620 INCHES MINIMUM AND 0.1720 INCHES MAXIMUM
OVERALL WIDTH	0.9300 INCHES MINIMUM AND 0.9400 INCHES MAXIMUM
STANDARD BORE DIAMETER	3.438 INCHES
SPECIAL FEATURES	STAMPED TOP ON UPPER SURFACE OF RING

Restrictions/Controls & Freight Information | NSN 2805-00-640-8637

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:	A	Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:	U	UNCLASSIFIED
Precious Metals Indicator Code:	U	Precious 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	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	Z	No special handling required.
Special Handling Code	9	unknonwn
HAZMAT
Type of Cargo	Z	No special type of cargo code applicable

Management | NSN 2805-00-640-8637

Category	Code	Description
Materiel Category and Inventory Manager	J	Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	0	Medical Materiel
Weapons Systems/End Item or Homogeneous Group	00	DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements Code	X	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 Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation Code	SU	SU:AF SICA RESIDUAL MMAC-OO-ALC
Price Validation	V	The current standard price has been validated. The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range. The item was procured under open competition and under the competitive arena the price is considered fair and reasonable. ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Acquisition Advice Codes	J	NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each