Product Details | NEEDLE ROLLER BEARING

3110-01-256-9277 A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

Part Alternates: MS21438108, MS21438-108, MILB3990, MIL-B-3990, 3110-01-256-9277, 01-256-9277, 3110012569277, 012569277

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 10 JUN 1987 01-256-9277

Drawings & Photos | NSN 3110-01-256-9277


Demand History | NSN 3110-01-256-9277

Part Number Request Date QTY Origin
3110-01-256-9277 2012-05-135 32 DIBBS
3110-01-256-9277 2012-04-94 6 DIBBS
3110-01-256-9277 2011-12-362 12 DIBBS
3110-01-256-9277 2011-07-194 35 DIBBS

Cross Reference | NSN 3110-01-256-9277

Part Number Cage Code Manufacturer
MIL-B-3990 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MS21438-108 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 3110-01-256-9277

Characteristic Specifications
MATERIAL STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OR STEEL COMP 4615 OR STEEL COMP 4617 OR STEEL COMP 4620 INNER RING STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OR STEEL COMP 4615 OR STEEL COMP 4617 OR STEEL COMP 4620 OUTER RING STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OR STEEL COMP 4615 OR STEEL COMP 4617 OR STEEL COMP 4620 RETAINING PLATE PLASTIC ACETAL OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE SEAL
MATERIAL DOCUMENT AND CLASSIFICATION L-P-392 FED SPEC 1ST MATERIAL RESPONSE OR L-P-410,TY 6/6 FED SPEC 2ND MATERIAL RESPONSE SEAL
SURFACE TREATMENT CADMIUM OR OXIDE INNER RING CHROMIUM OUTER RING CADMIUM OR OXIDE RETAINING PLATE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TYPE 1,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-13924 MIL SPEC 2ND TREATMENT RESPONSE INNER RING QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING QQ-P-416,TYPE 1,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-13924 MIL SPEC 2ND TREATMENT RESPONSE RETAINING PLATE
STYLE DESIGNATOR 444 TRACK ROLLER
BORE DIAMETER 0.4993 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER 1.3115 INCHES MINIMUM AND 1.3135 INCHES MAXIMUM
OUTER RING WIDTH 0.4850 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
INNER RING WIDTH 0.6150 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM
CROWN RADIUS 10.0000 INCHES NOMINAL
LUBRICATION MATERIAL GREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISH GROUND
SEAL QUANTITY 2
BEARING SEAL TYPE CONTACT
ALIGNMENT TYPE SELF-ALIGNING
SELF-ALIGNMENT LOCATION EXTERNAL
FEATURES PROVIDED LUBRICATION HOLE AND LUBRICATION GROOVE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT MIL-B-3990

Restrictions/Controls & Freight Information | NSN 3110-01-256-9277

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:AItem does not contain precious metal
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 114800 BEARING,ROLLER,THRUST
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 742 unknown
Originating Activity Code KH Defense Industrial Supply Center
Philadelphia, PA 19111
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 3110-01-256-9277

Category Code Description
Materiel Category and Inventory ManagerT Industrial Supplies (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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with 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.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each