NSN 2990-00-251-3656 11093, 11093B, 11097B

Product Details | MUFFLER-EXHAUST PIPE PROTECTIVE CAP ASSEMBLY

2990-00-251-3656 An item designed to fit over the opening of an engine exhaust pipe or muffler to prevent the entrance of rain or foreign matter into the manifold section of a reciprocating engine while not in use. It is automatically opened when the engine is started by pressure exerted from the exhaust system. It is equipped with a hinging action and may or may not have a counter weight. Excludes CAP, PROTECTIVE, DUST AND MOISTURE SEAL.

Part Alternates: 11093, 11093B, 11097B, 1236573H1, 1C4936, 628013C91, 717398C91, 734402C91, 7C1399, 7W3895, 9S7148, 2990-00-251-3656, 00-251-3656, 2990002513656, 002513656

Engine Accessories | Miscellaneous Engine Accessories, Nonaircraft

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
29	12 JAN 1972	00-251-3656	61446 ( CAP ASSEMBLY, PROTECTIVE, MUFFLER-EXHAUST PIPE )

Part Number	Request Date	QTY	Origin
628013C91	2022-07-14	47	DIBBS
9S7148	2022-07-14	47	DIBBS
628013C91	2022-05-12	38	DIBBS
9S7148	2022-05-12	38	DIBBS
628013C91	2020-09-30	17	DIBBS
9S7148	2020-09-30	17	DIBBS
628013C91	2020-04-12	17	DIBBS
9S7148	2020-04-12	17	DIBBS
2990-00-251-3656	2016-04-11	86	DIBBS
2990-00-251-3656	2016-03-31	86	DIBBS
2990-00-251-3656	2013-12-19	91	DIBBS
2990-00-251-3656	2013-05-22	0	DIBBS
2990-00-251-3656	2012-09-19	107	DIBBS
2990-00-251-3656	2012-05-29	0	DIBBS
2990-00-251-3656	2011-12-07	109	DIBBS
2990-00-251-3656	2011-10-03	0	DIBBS
2990-00-251-3656	2011-09-19	37	DIBBS
2990-00-251-3656	2011-07-13	56	DIBBS
2990-00-251-3656	2011-06-06	27	DIBBS
2990-00-251-3656	2011-02-03	60	DIBBS
2990-00-251-3656	2011-01-27	38	DIBBS
2990-00-251-3656	2010-12-27	1	DIBBS
2990-00-251-3656	2010-12-14	1	DIBBS
2990-00-251-3656	2010-12-14	5	DIBBS
2990-00-251-3656	2010-11-28	1	DIBBS
2990-00-251-3656	2010-11-19	1	DIBBS
2990-00-251-3656	2010-11-19	1	DIBBS
2990-00-251-3656	2010-11-12	1	DIBBS
2990-00-251-3656	2010-10-29	1	DIBBS
2990-00-251-3656	2010-10-29	1	DIBBS
2990-00-251-3656	2010-10-29	1	DIBBS
2990-00-251-3656	2010-10-22	1	DIBBS
2990-00-251-3656	2010-10-22	2	DIBBS
2990-00-251-3656	2010-10-17	1	DIBBS
2990-00-251-3656	2010-10-08	1	DIBBS
2990-00-251-3656	2010-10-08	4	DIBBS
2990-00-251-3656	2010-09-30	1	DIBBS
2990-00-251-3656	2010-09-30	1	DIBBS
2990-00-251-3656	2010-09-27	3	DIBBS
2990-00-251-3656	2010-09-11	1	DIBBS
2990-00-251-3656	2010-09-03	1	DIBBS
2990-00-251-3656	2010-09-03	3	DIBBS
2990-00-251-3656	2010-08-26	1	DIBBS
2990-00-251-3656	2010-08-26	7	DIBBS
2990-00-251-3656	2010-08-21	1	DIBBS
2990-00-251-3656	2010-08-21	1	DIBBS
2990-00-251-3656	2010-08-21	1	DIBBS
2990-00-251-3656	2010-08-16	1	DIBBS
2990-00-251-3656	2010-08-12	1	DIBBS
2990-00-251-3656	2010-08-07	1	DIBBS
2990-00-251-3656	2010-08-02	1	DIBBS
2990-00-251-3656	2010-07-24	1	DIBBS
2990-00-251-3656	2010-07-20	1	DIBBS
2990-00-251-3656	2010-07-20	5	DIBBS
2990-00-251-3656	2010-07-15	2	DIBBS
2990-00-251-3656	2010-07-15	5	DIBBS
2990-00-251-3656	2010-07-15	7	DIBBS
2990-00-251-3656	2010-07-12	1	DIBBS
11093	2008-08-21	1	Colombia

Cross Reference | NSN 2990-00-251-3656

Part Number	Cage Code	Manufacturer
11093	81859	GLEASON CORP ANTHES DIV
11093B	81859	GLEASON CORP ANTHES DIV
11097B	81859	GLEASON CORP ANTHES DIV
1236573H1	0SAT8	KOMATSU AMERICA CORP.
1236573H1	29510	KOMATSU AMERICAN INTL CO
1C4936	11083	CATERPILLAR INC. DBA CATERPILLAR
628013C91	45RP7	DRESSTA NORTH AMERICA LTD
628013C91	92679	NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION
717398C91	92679	NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION
734402C91	45RP7	DRESSTA NORTH AMERICA LTD
734402C91	92679	NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION
7C1399	11083	CATERPILLAR INC. DBA CATERPILLAR
7W3895	11083	CATERPILLAR INC. DBA CATERPILLAR
9S7148	11083	CATERPILLAR INC. DBA CATERPILLAR

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Related Products | NSN 2990-00-251-3656

2990-00-251-6326, 2990-00-251-6332, 2990-00-252-0016, 2990-00-252-1965, 2990-00-252-2104

Technical Data | NSN 2990-00-251-3656

Characteristic	Specifications
MATERIAL	STEEL
PIPE OUTSIDE DIAMETER ACCOMMODATED	5.000 INCHES
SPECIAL FEATURES	PAINTED BLACK FINISH

Restrictions/Controls & Freight Information | NSN 2990-00-251-3656

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	116430	CAPS,ENGINE RADIATOR
Less than car load rating
Less than truck load rating	W	Rating Variable
Water commodity Code	593	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 2990-00-251-3656

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	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
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.
Price Validation	N	The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM. The price has not been analyzed or reviewed for accuracy. ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
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
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	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each

Category	Code	Description
Stores Account Code	1	Marine Corps Stock Fund Account Item.
Combat Essentiality Code	5	Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency.
Materiel Management Code	B	All CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code	2	ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Physical Category Code	1	Bin
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DM	U.S. Marine Corps
Service Organization	M	U.S. Marine Corps
Reparability	Z	Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice Codes	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
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	D	DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each