PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21017Bearing,shaft

Lauson Division of Tecumseh Products Co · NSN 2990-00-357-9490 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-357-9490 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-357-9490. Primary manufacturer part number: 21017.
Features
  • Bearing,shaft — FSC 2990
  • 2 verified cross-references
  • Primary manufacturer: Lauson Division of Tecumseh Products Co
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,shaft, cataloged under National Stock Number 2990-00-357-9490, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Lauson Division of Tecumseh Products Co. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBearing,shaft
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersLauson Division of Tecumseh Products Co (CAGE 35211)
Technical Specifications
ParameterValue
NSN2990-00-357-9490
Primary Part Number21017
Item NameBearing,shaft
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerLauson Division of Tecumseh Products Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5120-00-061-8543 INTERCHANGEABLE
Hammer,hand
5935-00-807-6534DDF38C2S INTERCHANGEABLE
Connector,receptacle,electrical
Itt Cannon Llc
5940-00-983-6094 INTERCHANGEABLE
Terminal Board
1660-01-012-286521017 INTERCHANGEABLE
Poppet Assembly,check,precooler
Rogerson Aircraft Equipment Group
5360-01-157-6883WF2-1017 INTERCHANGEABLE
Spring,helical,compression
Malabar
5985-01-338-155921017 INTERCHANGEABLE
Antenna
Del Norte Technology Inc
5998-01-424-100721017 INTERCHANGEABLE
Circuit Card Assembly
Giga-Tronics Incorporated Dba Giga-Tronics
5120-01-430-7892 INTERCHANGEABLE
Wrench,open End
5340-01-432-62162-1017 INTERCHANGEABLE
Catch,clamping
Star Cases Llc Dba Zero Manufacturing
3010-01-486-3193 INTERCHANGEABLE
Drive Unit,angle
Cross-Reference Index
Part NumberManufacturer
21017 Lauson Division of Tecumseh Products Co (USA)
RL175B Lauson Division of Tecumseh Products Co (USA)
Related Parts
5120-00-061-8543INTERCHANGEABLE
HAMMER,HAND
5935-00-807-6534INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
DDF38C2S
5940-00-983-6094INTERCHANGEABLE
TERMINAL BOARD
1660-01-012-2865INTERCHANGEABLE
POPPET ASSEMBLY,CHECK,PRECOOLER
21017
5360-01-157-6883INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
WF2-1017
5985-01-338-1559INTERCHANGEABLE
ANTENNA
21017
5998-01-424-1007INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21017
5120-01-430-7892INTERCHANGEABLE
WRENCH,OPEN END
5340-01-432-6216INTERCHANGEABLE
CATCH,CLAMPING
2-1017
3010-01-486-3193INTERCHANGEABLE
DRIVE UNIT,ANGLE

Frequently Asked Questions

What is NSN 2990-00-357-9490?

NSN 2990-00-357-9490 is a Bearing,shaft, manufactured by Lauson Division of Tecumseh Products Co, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-357-9490?

NSN 2990-00-357-9490 has 2 cross-referenced part numbers: 21017 (Lauson Division of Tecumseh Products Co), RL175B (Lauson Division of Tecumseh Products Co).

What NSN replaces 2990-00-357-9490?

There are 10 known substitutes for 2990-00-357-9490: 5120-00-061-8543, 5935-00-807-6534, 5940-00-983-6094 and 7 more. Verify interchangeability with system specifications before substitution.

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