PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20344-1Insert,bearing

Rtx Corporation Div Pratt & Whitney · NSN 4140-00-373-4833 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-373-4833 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-373-4833. Primary manufacturer part number: 20344-1.
Features
  • Insert,bearing — FSC 4140
  • 2 verified cross-references
  • Primary manufacturer: Rtx Corporation Div Pratt & Whitney
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Insert,bearing, cataloged under National Stock Number 4140-00-373-4833, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Rtx Corporation Div Pratt & Whitney. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-00-373-4833
Primary Part Number20344-1
Item NameInsert,bearing
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerRtx Corporation Div Pratt & Whitney
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5342-00-112-2252 INTERCHANGEABLE
Handle-Catch Sub-Assy
1660-00-333-0973203441 INTERCHANGEABLE
Cap,adjusting
Valcor Engineering Corporation
5962-00-350-8424SM-B-525280 INTERCHANGEABLE
Microcircuit,digital
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-056-9640203441 INTERCHANGEABLE
Retainer
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Cross-Reference Index
Part NumberManufacturer
20344-1 PRIMARY Rtx Corporation Div Pratt & Whitney (USA)
20344-1 Hamilton Sundstrand Corporation (USA)
Related Parts
5342-00-112-2252INTERCHANGEABLE
HANDLE-CATCH SUB-ASSY
1660-00-333-0973INTERCHANGEABLE
CAP,ADJUSTING
203441
5962-00-350-8424INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SM-B-525280
4820-01-056-9640INTERCHANGEABLE
RETAINER
203441

Frequently Asked Questions

What is NSN 4140-00-373-4833?

NSN 4140-00-373-4833 is a Insert,bearing, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-00-373-4833?

NSN 4140-00-373-4833 has 2 cross-referenced part numbers: 20344-1 (Rtx Corporation Div Pratt & Whitney), 20344-1 (Hamilton Sundstrand Corporation).

What NSN replaces 4140-00-373-4833?

There are 4 known substitutes for 4140-00-373-4833: 5342-00-112-2252, 1660-00-333-0973, 5962-00-350-8424 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20344-1?

Key specifications for 20344-1: End Item Identification: USED ON ACFT TEMPATURE AND PRESSURE CONTROL SYSTEM. 1 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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