PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RAK1 3/16Bearing Unit,ball

Timken Co Div the Timken Company · NSN 3130-00-841-2554 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-841-2554 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-841-2554. Primary manufacturer part number: RAK1 3/16.
Features
  • Bearing Unit,ball — FSC 3130
  • Rotating Element Locking Method: SETSCREW LOCKING COLLAR
  • Internal Fit-Up Designation: STANDARD
  • Mounting Slot Width: 0.7500 INCHES NOMINAL IN
  • Mounting Slot Length: 0.5625 INCHES NOMINAL IN
  • Base Length: 1.8750 INCHES NOMINAL IN
  • Assembly Overall Length: 1.9062 INCHES NOMINAL IN
  • Seal Location: BOTH ENDS
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Iron Cast Housing construction
General Description

The Bearing Unit,ball, cataloged under National Stock Number 3130-00-841-2554, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3130-00-841-2554
Primary Part NumberRAK1 3/16
Item NameBearing Unit,ball
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusCANCELLED
Rotating Element Locking MethodSETSCREW LOCKING COLLAR
Internal Fit-Up DesignationSTANDARD
Mounting Slot Width0.7500 INCHES NOMINAL IN
Mounting Slot Length0.5625 INCHES NOMINAL IN
Base Length1.8750 INCHES NOMINAL IN
Assembly Overall Length1.9062 INCHES NOMINAL IN
Seal LocationBOTH ENDS
Lubrication Fitting Angle From Horizontal Centerline90.0 DEGREES NOMINAL
Base Thickness0.6875 INCHES NOMINAL IN
Lubrication Fitting TypePIPE PLUG
Style DesignatorPILLOW BLOCK, SOLID
MaterialIRON CAST HOUSING
Lubrication MaterialGREASE
Mounting Hole TypeSLOTTED
Collar LocationONE END
Alignment TypeSELF-ALIGNING
Features ProvidedGROUND ROLLING ELEMENT GROOVE
Housing Width6.3125 INCHES NOMINAL IN
Rolling Element Groove Quantity1
Block TypeFIXED
MaterialRUBBER AND STEEL SEAL
Housing Height3.1562 INCHES NOMINAL IN
Shaft End TypeOPEN
Load Capability TypeRADIAL
Center to Center Distance Between Mounting Holes Along Width4.7500 INCHES NOMINAL IN
Seal TypeCONTACT
Bore Diameter1.1875 INCHES NOMINAL IN
Height From Bottom of Base to Bore Centerline1.5615 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
3130-00-190-9359NPL-19 INTERCHANGEABLE
Bearing Unit,ball
Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co
3130-01-274-9865NPL-19T INTERCHANGEABLE
Bearing Unit,ball
Regal Rexnord Corporation
Cross-Reference Index
Part NumberManufacturer
RAK1 3/16 PRIMARY Timken Co Div the Timken Company (USA)
NPL-19-T Emerson Power Transmission Corporation Div Ept (USA)
3130PL0808994 Jednolity Indeks Materialowy - Uniform Material Index (POL)
CL-25-1 3/16 Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. (USA)
06930-6L 13/16B Altra Industrial Motion Corp. (USA)
SYH103X Skf Usa Inc. (USA)
CL-25-1 3/16 Mcgill Manufacturing Co, Inc (USA)
Related Parts
3130-00-190-9359INTERCHANGEABLE
BEARING UNIT,BALL
NPL-19
3130-01-274-9865INTERCHANGEABLE
BEARING UNIT,BALL
NPL-19T

Frequently Asked Questions

What is NSN 3130-00-841-2554?

NSN 3130-00-841-2554 is a Bearing Unit,ball, manufactured by Timken Co Div the Timken Company, classified under FSC 3130 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3130-00-841-2554?

NSN 3130-00-841-2554 has 7 cross-referenced part numbers: RAK1 3/16 (Timken Co Div the Timken Company), NPL-19-T (Emerson Power Transmission Corporation Div Ept), 3130PL0808994 (Jednolity Indeks Materialowy - Uniform Material Index), CL-25-1 3/16 (Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging.), 06930-6L 13/16B (Altra Industrial Motion Corp.) and 2 more.

What NSN replaces 3130-00-841-2554?

There are 2 known substitutes for 3130-00-841-2554: 3130-00-190-9359, 3130-01-274-9865. Verify interchangeability with system specifications before substitution.

What are the specifications of RAK1 3/16?

Key specifications for RAK1 3/16: Rotating Element Locking Method: SETSCREW LOCKING COLLAR; Internal Fit-Up Designation: STANDARD; Mounting Slot Width: 0.7500 INCHES NOMINAL IN; Mounting Slot Length: 0.5625 INCHES NOMINAL IN. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3130-00-841-2554 still in active supply?

NSN 3130-00-841-2554 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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