PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21610-1Bearing,front

Triumph Thermal Systems - Maryland, Inc. · NSN 2990-00-031-7457 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-031-7457 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-031-7457. Primary manufacturer part number: 21610-1.
Features
  • Bearing,front — FSC 2990
  • 3 verified cross-references
  • Primary manufacturer: Triumph Thermal Systems - Maryland, Inc.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,front, cataloged under National Stock Number 2990-00-031-7457, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameBearing,front
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersTriumph Thermal Systems - Maryland, Inc. (CAGE 01359); Kendall Controls Corp (CAGE 98801); Defense & Development Enterprises Llc (CAGE 07KQ5)
Technical Specifications
ParameterValue
NSN2990-00-031-7457
Primary Part Number21610-1
Item NameBearing,front
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerTriumph Thermal Systems - Maryland, Inc.
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5935-00-259-985314162 INTERCHANGEABLE
Strap Nut,plug-in Electronic Com
Cinch Connectivity Solutions Inc.
5910-01-384-4348216101 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Datron World Communications, Inc.
5331-01-606-9961216101 INTERCHANGEABLE
O-Ring
Terex Usa, Llc Dba Terex Usa, Llc
Cross-Reference Index
Part NumberManufacturer
21610-1 Triumph Thermal Systems - Maryland, Inc. (USA)
KC4112A Kendall Controls Corp (USA)
21610-1 Defense & Development Enterprises Llc (USA)
Related Parts
5935-00-259-9853INTERCHANGEABLE
STRAP NUT,PLUG-IN ELECTRONIC COM
14162
5910-01-384-4348INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
216101
5331-01-606-9961INTERCHANGEABLE
O-RING
216101

Frequently Asked Questions

What is NSN 2990-00-031-7457?

NSN 2990-00-031-7457 is a Bearing,front, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2990-00-031-7457?

NSN 2990-00-031-7457 has 3 cross-referenced part numbers: 21610-1 (Triumph Thermal Systems - Maryland, Inc.), KC4112A (Kendall Controls Corp), 21610-1 (Defense & Development Enterprises Llc).

What NSN replaces 2990-00-031-7457?

There are 3 known substitutes for 2990-00-031-7457: 5935-00-259-9853, 5910-01-384-4348, 5331-01-606-9961. Verify interchangeability with system specifications before substitution.

Is NSN 2990-00-031-7457 still in active supply?

NSN 2990-00-031-7457 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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