PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51978Bearing Unit,ball

Klauer Manufacturing Company · NSN 3130-00-116-9041 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-116-9041 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-116-9041. Primary manufacturer part number: 51978.
Features
  • Bearing Unit,ball — FSC 3130
  • Bore Diameter: 1.5000 INCHES NOMINAL IN
  • Lubrication Fitting Type: PIPE PLUG
  • Seal Type: SELF-ALIGNING
  • Material: IRON CAST HOUSING
  • Housing Height: 4.0625 INCHES NOMINAL IN
  • Seal Location: ONE END
  • Collar Location: ONE END
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 3130-00-116-9041, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Klauer Manufacturing Company. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3130-00-116-9041
Primary Part Number51978
Item NameBearing Unit,ball
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerKlauer Manufacturing Company
StatusACTIVE
Bore Diameter1.5000 INCHES NOMINAL IN
Lubrication Fitting TypePIPE PLUG
Seal TypeSELF-ALIGNING
MaterialIRON CAST HOUSING
Housing Height4.0625 INCHES NOMINAL IN
Seal LocationONE END
Collar LocationONE END
Lubrication Fitting Angle From Horizontal Centerline45.0 DEGREES NOMINAL
Internal Fit-Up DesignationSTANDARD
Lubrication MaterialGREASE
Mounting Hole TypeSLOTTED
Base Thickness0.8125 INCHES NOMINAL IN
Mounting Slot Width0.5000 INCHES NOMINAL IN
Base Length1.8750 INCHES NOMINAL IN
Load Capability TypeRADIAL
Features ProvidedGROUND ROLLING ELEMENT GROOVE
Height From Bottom of Base to Bore Centerline2.0000 INCHES NOMINAL IN
Rotating Element Locking MethodSETSCREW LOCKING COLLAR
Alignment TypeSELF-ALIGNING
Center to Center Distance Between Mounting Holes Along Width5.3750 INCHES NOMINAL IN
Rolling Element Groove Quantity1
Housing Width7.0625 INCHES NOMINAL IN
Mounting Slot Length0.9375 INCHES NOMINAL IN
MaterialSTEEL SEAL
Style DesignatorPILLOW BLOCK, SOLID
Assembly Overall Length1.9062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2940-00-497-633351258 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5120-00-658-9267 INTERCHANGEABLE
Wrench,indicator
5895-00-665-110651978CHANGEE2 INTERCHANGEABLE
Cavity,tuned
L3harris Technologies, Inc Div Space & Airborne Systems
2805-00-701-935132NP INTERCHANGEABLE
Piston,internal Combustion Engin
Federal-Mogul Corp Government Sales Dept
6220-00-987-380645644 INTERCHANGEABLE
Cover,landing Light
Grimes Aerospace Company
5970-01-504-4213P-224 INTERCHANGEABLE
Tape,insulation,electrical
Nitto, Inc.
1550-01-587-276551978 INTERCHANGEABLE
Unmanned Aircraft
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
P224 Industrial Laundry Machinery Co Inc
LW24-12-130 Industrial Laundry Machinery Co Inc
51978 PRIMARY Klauer Manufacturing Company (USA)
P3U224H PRIMARY Rexnord Industries, Llc Div Link-Belt Bearing Operation (USA)
PB201X1 1-2 PRIMARY Emerson Electric Co Browning Mfg Div (USA)
P224 Rexnord Industries, Llc Div Link-Belt Bearing Operation (USA)
Related Parts
2940-00-497-6333INTERCHANGEABLE
FILTER ELEMENT,FLUID
51258
5120-00-658-9267INTERCHANGEABLE
WRENCH,INDICATOR
5895-00-665-1106INTERCHANGEABLE
CAVITY,TUNED
51978CHANGEE2
2805-00-701-9351INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
32NP
6220-00-987-3806INTERCHANGEABLE
COVER,LANDING LIGHT
45644
5970-01-504-4213INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
P-224
1550-01-587-2765INTERCHANGEABLE
UNMANNED AIRCRAFT
51978

Frequently Asked Questions

What is NSN 3130-00-116-9041?

NSN 3130-00-116-9041 is a Bearing Unit,ball, manufactured by Klauer Manufacturing Company, classified under FSC 3130 (No Item Name Available). Status: active.

What are the part numbers for NSN 3130-00-116-9041?

NSN 3130-00-116-9041 has 6 cross-referenced part numbers: P224 (Industrial Laundry Machinery Co Inc), LW24-12-130 (Industrial Laundry Machinery Co Inc), 51978 (Klauer Manufacturing Company), P3U224H (Rexnord Industries, Llc Div Link-Belt Bearing Operation), PB201X1 1-2 (Emerson Electric Co Browning Mfg Div) and 1 more.

What NSN replaces 3130-00-116-9041?

There are 7 known substitutes for 3130-00-116-9041: 2940-00-497-6333, 5120-00-658-9267, 5895-00-665-1106 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51978?

Key specifications for 51978: Bore Diameter: 1.5000 INCHES NOMINAL IN; Lubrication Fitting Type: PIPE PLUG; Seal Type: SELF-ALIGNING; Material: IRON CAST HOUSING. 26 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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