PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30F53Bearing Unit,ball

Astec Industries Inc Div Astec Ind. · NSN 3130-00-108-0646 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-108-0646 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-108-0646. Primary manufacturer part number: 30F53.
Features
  • Bearing Unit,ball — FSC 3130
  • Seal Type: LABYRINTH
  • Housing Width: 8.7500 INCHES NOMINAL IN
  • Lubrication Fitting Type: HYDRAULIC
  • Mounting Slot Width: 0.7500 INCHES NOMINAL IN
  • Housing Height: 4.6250 INCHES NOMINAL IN
  • Lubrication Fitting Angle From Horizontal Centerline: 90.0 DEGREES NOMINAL
  • Load Capability Type: RADIAL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel and Wool Seal construction
General Description

The Bearing Unit,ball, cataloged under National Stock Number 3130-00-108-0646, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Astec Industries Inc Div Astec Ind.. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3130-00-108-0646
Primary Part Number30F53
Item NameBearing Unit,ball
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerAstec Industries Inc Div Astec Ind.
StatusCANCELLED
Seal TypeLABYRINTH
Housing Width8.7500 INCHES NOMINAL IN
Lubrication Fitting TypeHYDRAULIC
Mounting Slot Width0.7500 INCHES NOMINAL IN
Housing Height4.6250 INCHES NOMINAL IN
Lubrication Fitting Angle From Horizontal Centerline90.0 DEGREES NOMINAL
Load Capability TypeRADIAL
Style DesignatorPILLOW BLOCK, SOLID
Mounting Hole TypeSLOTTED
Rotating Element Locking MethodDIRECT
Height From Bottom of Base to Bore Centerline2.3750 INCHES NOMINAL IN
MaterialSTEEL AND WOOL SEAL
Alignment TypeSELF-ALIGNING
Bore Diameter1.6875 INCHES NOMINAL IN
Internal Fit-Up DesignationSTANDARD
Features ProvidedGROUND ROLLING ELEMENT GROOVE
Base Thickness0.7500 INCHES NOMINAL IN
Rolling Element Groove Quantity1
Mounting Slot Length1.2500 INCHES NOMINAL IN
Assembly Overall Length1.9375 INCHES NOMINAL IN
Base Length2.3750 INCHES NOMINAL IN
Temp Rating275.0 FAHRENHEIT DEGF
Center to Center Distance Between Mounting Holes Along Width6.5000 INCHES NOMINAL IN
MaterialIRON CAST HOUSING
Lubrication MaterialGREASE
Seal LocationBOTH ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
7310-00-137-6329BSU-6(220V) INTERCHANGEABLE
Sandwich Unit,refrigerated
P & M Llc
5962-00-147-7935351-1062-022 INTERCHANGEABLE
Microcircuit,linear
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5305-00-276-2310SP27 INTERCHANGEABLE
Screw,machine
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
30F53 PRIMARY Astec Industries Inc Div Astec Ind. (USA)
SP27 Stephens-Adamson Inc a Sub of Allis-Chalmers Corp (USA)
P73A Correct Mfg Corp (USA)
PH3U227H PRIMARY Rexnord Industries, Llc Div Link-Belt Bearing Operation (USA)
RSA1 11/16 Timken Co Div the Timken Company (USA)
30F53 Barber-Greene Co (USA)
30F53 Minnpar, Llc Dba Minnpar (USA)
02770-5202 PRIMARY Cummins Power Generation Inc. (USA)
BRSAD1 Minnpar, Llc Dba Minnpar (USA)
BRSAD1 Barber-Greene Co (USA)
Related Parts
7310-00-137-6329INTERCHANGEABLE
SANDWICH UNIT,REFRIGERATED
BSU-6(220V)
5962-00-147-7935INTERCHANGEABLE
MICROCIRCUIT,LINEAR
351-1062-022
5305-00-276-2310INTERCHANGEABLE
SCREW,MACHINE
SP27

Frequently Asked Questions

What is NSN 3130-00-108-0646?

NSN 3130-00-108-0646 is a Bearing Unit,ball, manufactured by Astec Industries Inc Div Astec Ind., classified under FSC 3130 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3130-00-108-0646?

NSN 3130-00-108-0646 has 10 cross-referenced part numbers: 30F53 (Astec Industries Inc Div Astec Ind.), SP27 (Stephens-Adamson Inc a Sub of Allis-Chalmers Corp), P73A (Correct Mfg Corp), PH3U227H (Rexnord Industries, Llc Div Link-Belt Bearing Operation), RSA1 11/16 (Timken Co Div the Timken Company) and 5 more.

What NSN replaces 3130-00-108-0646?

There are 3 known substitutes for 3130-00-108-0646: 7310-00-137-6329, 5962-00-147-7935, 5305-00-276-2310. Verify interchangeability with system specifications before substitution.

What are the specifications of 30F53?

Key specifications for 30F53: Seal Type: LABYRINTH; Housing Width: 8.7500 INCHES NOMINAL IN; Lubrication Fitting Type: HYDRAULIC; Mounting Slot Width: 0.7500 INCHES NOMINAL IN. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3130-00-108-0646 still in active supply?

NSN 3130-00-108-0646 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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