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
29 12 JAN 1972 00-251-3656

Demand History | NSN 2990-00-251-3656

Part Number Request Date QTY Origin
628013C91 2022-07-195 47 DIBBS
9S7148 2022-07-195 47 DIBBS
628013C91 2022-05-132 38 DIBBS
9S7148 2022-05-132 38 DIBBS
628013C91 2020-09-274 17 DIBBS
9S7148 2020-09-274 17 DIBBS
628013C91 2020-04-103 17 DIBBS
9S7148 2020-04-103 17 DIBBS
2990-00-251-3656 2016-04-102 86 DIBBS
2990-00-251-3656 2016-03-91 86 DIBBS
2990-00-251-3656 2013-12-353 91 DIBBS
2990-00-251-3656 2013-05-142 0 DIBBS
2990-00-251-3656 2012-09-263 107 DIBBS
2990-00-251-3656 2012-05-150 0 DIBBS
2990-00-251-3656 2011-12-341 109 DIBBS
2990-00-251-3656 2011-10-276 0 DIBBS
2990-00-251-3656 2011-09-262 37 DIBBS
2990-00-251-3656 2011-07-194 56 DIBBS
2990-00-251-3656 2011-06-157 27 DIBBS
2990-00-251-3656 2011-02-34 60 DIBBS
2990-00-251-3656 2011-01-27 38 DIBBS
2990-00-251-3656 2010-12-361 1 DIBBS
2990-00-251-3656 2010-12-348 1 DIBBS
2990-00-251-3656 2010-12-348 5 DIBBS
2990-00-251-3656 2010-11-332 1 DIBBS
2990-00-251-3656 2010-11-323 1 DIBBS
2990-00-251-3656 2010-11-323 1 DIBBS
2990-00-251-3656 2010-11-316 1 DIBBS
2990-00-251-3656 2010-10-302 1 DIBBS
2990-00-251-3656 2010-10-302 1 DIBBS
2990-00-251-3656 2010-10-302 1 DIBBS
2990-00-251-3656 2010-10-295 1 DIBBS
2990-00-251-3656 2010-10-295 2 DIBBS
2990-00-251-3656 2010-10-290 1 DIBBS
2990-00-251-3656 2010-10-281 1 DIBBS
2990-00-251-3656 2010-10-281 4 DIBBS
2990-00-251-3656 2010-09-273 1 DIBBS
2990-00-251-3656 2010-09-273 1 DIBBS
2990-00-251-3656 2010-09-270 3 DIBBS
2990-00-251-3656 2010-09-254 1 DIBBS
2990-00-251-3656 2010-09-246 1 DIBBS
2990-00-251-3656 2010-09-246 3 DIBBS
2990-00-251-3656 2010-08-238 1 DIBBS
2990-00-251-3656 2010-08-238 7 DIBBS
2990-00-251-3656 2010-08-233 1 DIBBS
2990-00-251-3656 2010-08-233 1 DIBBS
2990-00-251-3656 2010-08-233 1 DIBBS
2990-00-251-3656 2010-08-228 1 DIBBS
2990-00-251-3656 2010-08-224 1 DIBBS
2990-00-251-3656 2010-08-219 1 DIBBS
2990-00-251-3656 2010-08-214 1 DIBBS
2990-00-251-3656 2010-07-205 1 DIBBS
2990-00-251-3656 2010-07-201 1 DIBBS
2990-00-251-3656 2010-07-201 5 DIBBS
2990-00-251-3656 2010-07-196 2 DIBBS
2990-00-251-3656 2010-07-196 5 DIBBS
2990-00-251-3656 2010-07-196 7 DIBBS
2990-00-251-3656 2010-07-193 1 DIBBS
11093 2008-08-234 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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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

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 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 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 CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Budget Code9 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 ValidationN 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 CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSUSU:AF SICA RESIDUAL MMAC-OO-ALC
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Stores Account Code1Marine Corps Stock Fund Account Item.
Combat Essentiality Code5Critical 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 CodeBAll CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code2ICP/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 Code1Bin
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDMU.S. Marine Corps
Service OrganizationMU.S. Marine Corps
ReparabilityZNonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesDDoD 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each