PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100644Housing,bearing Unit

Walker Power Systems, Inc. Dba Tiernay Turbines · NSN 3130-01-135-7357 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-01-135-7357 — this item is cataloged by the U.S. Government under National Stock Number 3130-01-135-7357. Primary manufacturer part number: 100644.
Features
  • Housing,bearing Unit — FSC 3130
  • Shaft End Type: OPEN
  • Material: IRON CAST HOUSING
  • Housing Diameter: 2.7440 INCHES MINIMUM AND 2.7450 INCHES MAXIMUM IN
  • Housing Length: 4.2950 INCHES MINIMUM AND 4.3050 INCHES MAXIMUM IN
  • Bore Diameter: 1.3254 INCHES MINIMUM AND 1.3257 INCHES MAXIMUM IN
  • Mounting Hole Diameter: 0.1960 INCHES NOMINAL IN
  • Flange Thickness: 0.1520 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Iron Cast Housing construction
General Description

The Housing,bearing Unit, cataloged under National Stock Number 3130-01-135-7357, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Walker Power Systems, Inc. Dba Tiernay Turbines. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3130-01-135-7357
Primary Part Number100644
Item NameHousing,bearing Unit
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerWalker Power Systems, Inc. Dba Tiernay Turbines
StatusACTIVE
Shaft End TypeOPEN
MaterialIRON CAST HOUSING
Housing Diameter2.7440 INCHES MINIMUM AND 2.7450 INCHES MAXIMUM IN
Housing Length4.2950 INCHES MINIMUM AND 4.3050 INCHES MAXIMUM IN
Bore Diameter1.3254 INCHES MINIMUM AND 1.3257 INCHES MAXIMUM IN
Mounting Hole Diameter0.1960 INCHES NOMINAL IN
Flange Thickness0.1520 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-005-2519920012-63 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5950-00-199-7599722899-6 INTERCHANGEABLE
Transformer,power
Raytheon Company Div Rmd Strategic
1680-00-307-7964100644 INTERCHANGEABLE
Arm Assembly,limit
Meggitt North Hollywood Inc
Cross-Reference Index
Part NumberManufacturer
100644 PRIMARY Walker Power Systems, Inc. Dba Tiernay Turbines (USA)
Related Parts
5950-00-005-2519INTERCHANGEABLE
COIL,RADIO FREQUENCY
920012-63
5950-00-199-7599INTERCHANGEABLE
TRANSFORMER,POWER
722899-6
1680-00-307-7964INTERCHANGEABLE
ARM ASSEMBLY,LIMIT
100644

Frequently Asked Questions

What is NSN 3130-01-135-7357?

NSN 3130-01-135-7357 is a Housing,bearing Unit, manufactured by Walker Power Systems, Inc. Dba Tiernay Turbines, classified under FSC 3130 (No Item Name Available). Status: active.

What are the part numbers for NSN 3130-01-135-7357?

NSN 3130-01-135-7357 has 1 cross-referenced part number: 100644 (Walker Power Systems, Inc. Dba Tiernay Turbines).

What NSN replaces 3130-01-135-7357?

There are 3 known substitutes for 3130-01-135-7357: 5950-00-005-2519, 5950-00-199-7599, 1680-00-307-7964. Verify interchangeability with system specifications before substitution.

What are the specifications of 100644?

Key specifications for 100644: Shaft End Type: OPEN; Material: IRON CAST HOUSING; Housing Diameter: 2.7440 INCHES MINIMUM AND 2.7450 INCHES MAXIMUM IN; Housing Length: 4.2950 INCHES MINIMUM AND 4.3050 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com