PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37556Housing,antifriction Bearing,air

Williams International Co., L.l.c. · NSN 2840-01-294-7884 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-01-294-7884 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-294-7884. Primary manufacturer part number: 37556.
Features
  • Housing,antifriction Bearing,air — FSC 2840
  • Engine Section Location: TURBINE
  • Criticality Code Justification: AGAV
  • 1 verified cross-reference
  • Primary manufacturer: Williams International Co., L.l.c.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Housing,antifriction Bearing,air, cataloged under National Stock Number 2840-01-294-7884, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Williams International Co., L.l.c.. Government technical data includes 2 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-01-294-7884
Primary Part Number37556
Item NameHousing,antifriction Bearing,air
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerWilliams International Co., L.l.c.
StatusACTIVE
Engine Section LocationTURBINE
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4320-00-060-680513217E3987 INTERCHANGEABLE
Pump Unit,centrifugal
Cecom Lr Center
5110-00-239-759731.615 INTERCHANGEABLE
File,hand
Grobet File Co of America Inc Dba Grobet Usa
5330-00-334-0517032225 INTERCHANGEABLE
Seal,plain Encased
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
4730-00-773-2620110-067-6F INTERCHANGEABLE
Coupling Half,quick Disconnect
Bell Textron Inc
5310-00-820-6653MS35338-50 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3040-01-316-05663755-6 INTERCHANGEABLE
Weight,counterbalance
Naval Air Warfare Ctr Aircraft Div
5325-01-397-348637556 INTERCHANGEABLE
Insert,screw Thread
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
37556 PRIMARY Williams International Co., L.l.c. (USA)
Related Parts
4320-00-060-6805INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
13217E3987
5110-00-239-7597INTERCHANGEABLE
FILE,HAND
31.615
5330-00-334-0517INTERCHANGEABLE
SEAL,PLAIN ENCASED
032225
4730-00-773-2620INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
110-067-6F
5310-00-820-6653INTERCHANGEABLE
WASHER,LOCK
MS35338-50
3040-01-316-0566INTERCHANGEABLE
WEIGHT,COUNTERBALANCE
3755-6
5325-01-397-3486INTERCHANGEABLE
INSERT,SCREW THREAD
37556

Frequently Asked Questions

What is NSN 2840-01-294-7884?

NSN 2840-01-294-7884 is a Housing,antifriction Bearing,air, manufactured by Williams International Co., L.l.c., classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-01-294-7884?

NSN 2840-01-294-7884 has 1 cross-referenced part number: 37556 (Williams International Co., L.l.c.).

What NSN replaces 2840-01-294-7884?

There are 7 known substitutes for 2840-01-294-7884: 4320-00-060-6805, 5110-00-239-7597, 5330-00-334-0517 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37556?

Key specifications for 37556: End Item Identification: ACFT ENG F112; Engine Section Location: TURBINE; Criticality Code Justification: AGAV. 3 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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