PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RAP3MS4-2Bearing,ball,rod End

Timken Co Div the Timken Company · NSN 3110-00-516-2556 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-516-2556 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-516-2556. Primary manufacturer part number: RAP3MS4-2.
Features
  • Bearing,ball,rod End — FSC 3110
  • Shank Style: EXTERNALLY THREADED
  • Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
  • Shank Thread Length: 0.9280 INCHES MINIMUM AND 0.9480 INCHES MAXIMUM IN
  • Lubrication Material: GREASE
  • Outer Ring Width: 0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN
  • Self-Alignment Angle: 10.00 DEGREES NOMINAL
  • Alignment Type: SELF-ALIGNING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Ring construction
General Description

The Bearing,ball,rod End, cataloged under National Stock Number 3110-00-516-2556, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-516-2556
Primary Part NumberRAP3MS4-2
Item NameBearing,ball,rod End
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusACTIVE
Shank StyleEXTERNALLY THREADED
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Shank Thread Length0.9280 INCHES MINIMUM AND 0.9480 INCHES MAXIMUM IN
Lubrication MaterialGREASE
Outer Ring Width0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN
Self-Alignment Angle10.00 DEGREES NOMINAL
Alignment TypeSELF-ALIGNING
Seal Quantity2
Self-Alignment LocationINTERNAL
Thread Quantity Per Inch28
Bearing Seal TypeCONTACT
Nominal Thread Size0.250 INCHES IN
Inner Ring Width0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Length From Bore Center to Shank End1.8020 INCHES MINIMUM AND 1.8220 INCHES MAXIMUM IN
Bore Diameter0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Shank Diameter0.2500 INCHES NOMINAL IN
MaterialSTEEL OUTER RING
Surface TreatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
MaterialSTEEL OPPOSITE SHIELD SIDE
MaterialSTEEL INNER RING
Style DesignatorDOUBLE ROW, STAGGERED, BALL
MaterialSTEEL BALL
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAL
Thread Class3A A
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-001-4707MS51151-3 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-159-1632MS21151-6G INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-232-2933MS21151-7 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-232-3075MS21151-8 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-232-3177MS21151-9 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-232-3329MS21151-11G INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-232-3428MS21151-10 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-232-3467MS21151-2 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-263-8705MS21151-6 INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
3110-00-625-9295MS21151-7C INTERCHANGEABLE
Bearing,ball,rod End
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
RAP3MS4-2 Timken Co Div the Timken Company (USA)
AS21151 American Society for Testing and Materials Dba Astm International (USA)
AS21151 Sae International Dba Sae International (USA)
MS21151-6C American Society for Testing and Materials Dba Astm International (USA)
MS21151-63 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
S1565-61357 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
Related Parts
3110-00-001-4707INTERCHANGEABLE
BEARING,BALL,ROD END
MS51151-3
3110-00-159-1632INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-6G
3110-00-232-2933INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-7
3110-00-232-3075INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-8
3110-00-232-3177INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-9
3110-00-232-3329INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-11G
3110-00-232-3428INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-10
3110-00-232-3467INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-2
3110-00-263-8705INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-6
3110-00-625-9295INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-7C
3110-00-726-1158INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-10G
3110-00-766-6924INTERCHANGEABLE
BEARING,BALL,ROD END
MS21151-4

Frequently Asked Questions

What is NSN 3110-00-516-2556?

NSN 3110-00-516-2556 is a Bearing,ball,rod End, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-516-2556?

NSN 3110-00-516-2556 has 6 cross-referenced part numbers: RAP3MS4-2 (Timken Co Div the Timken Company), AS21151 (American Society for Testing and Materials Dba Astm International), AS21151 (Sae International Dba Sae International), MS21151-6C (American Society for Testing and Materials Dba Astm International), MS21151-63 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 3110-00-516-2556?

There are 12 known substitutes for 3110-00-516-2556: 3110-00-001-4707, 3110-00-159-1632, 3110-00-232-2933 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RAP3MS4-2?

Key specifications for RAP3MS4-2: Shank Style: EXTERNALLY THREADED; Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE; Shank Thread Length: 0.9280 INCHES MINIMUM AND 0.9480 INCHES MAXIMUM IN; Lubrication Material: GREASE. 28 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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