PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21027Bearing,plain,spherical

Drs C3 & Aviation Company Dba Drs Data & Imaging Systems · NSN 3120-00-432-4059 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-432-4059 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-432-4059. Primary manufacturer part number: 21027.
Features
  • Bearing,plain,spherical — FSC 3120
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Spherical Body Diameter: 0.9600 INCHES NOMINAL IN
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Body Inside Diameter: 0.6250 INCHES MINIMUM AND 0.6252 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Drs C3 & Aviation Company Dba Drs Data & Imaging Systems
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,plain,spherical, cataloged under National Stock Number 3120-00-432-4059, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Drs C3 & Aviation Company Dba Drs Data & Imaging Systems. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-432-4059
Primary Part Number21027
Item NameBearing,plain,spherical
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDrs C3 & Aviation Company Dba Drs Data & Imaging Systems
StatusACTIVE
Corner ShapeSQUARE INSIDE RIGHT CORNER
Spherical Body Diameter0.9600 INCHES NOMINAL IN
Corner ShapeSQUARE INSIDE LEFT CORNER
Body Inside Diameter0.6250 INCHES MINIMUM AND 0.6252 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5950-00-451-5508 INTERCHANGEABLE
Transformer,power
5305-00-591-332021027 INTERCHANGEABLE
Screw,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5905-00-794-4034210-27 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Keysight Technologies Inc
4820-01-012-286621027 INTERCHANGEABLE
Body,valve
Rogerson Aircraft Equipment Group
4720-01-230-909821027 INTERCHANGEABLE
Hose,preformed
Gates Corporation
4820-01-322-90362-1027 INTERCHANGEABLE
Seat,valve
Malabar
5305-01-333-4689 INTERCHANGEABLE
Screw,machine
5340-01-347-9676 INTERCHANGEABLE
Bracket,angle
5970-01-386-303121027 INTERCHANGEABLE
Insulator,strain
Science Applications International Corporation
5340-01-619-748421-027 INTERCHANGEABLE
Magnet,permanent
Hii Unmanned Systems, Inc
Cross-Reference Index
Part NumberManufacturer
7603748-00 Dover Corp (USA)
21027 PRIMARY Drs C3 & Aviation Company Dba Drs Data & Imaging Systems (USA)
Related Parts
5950-00-451-5508INTERCHANGEABLE
TRANSFORMER,POWER
5305-00-591-3320INTERCHANGEABLE
SCREW,MACHINE
21027
5905-00-794-4034INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
210-27
4820-01-012-2866INTERCHANGEABLE
BODY,VALVE
21027
4720-01-230-9098INTERCHANGEABLE
HOSE,PREFORMED
21027
4820-01-322-9036INTERCHANGEABLE
SEAT,VALVE
2-1027
5305-01-333-4689INTERCHANGEABLE
SCREW,MACHINE
5340-01-347-9676INTERCHANGEABLE
BRACKET,ANGLE
5970-01-386-3031INTERCHANGEABLE
INSULATOR,STRAIN
21027
5340-01-619-7484INTERCHANGEABLE
MAGNET,PERMANENT
21-027

Frequently Asked Questions

What is NSN 3120-00-432-4059?

NSN 3120-00-432-4059 is a Bearing,plain,spherical, manufactured by Drs C3 & Aviation Company Dba Drs Data & Imaging Systems, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-432-4059?

NSN 3120-00-432-4059 has 2 cross-referenced part numbers: 7603748-00 (Dover Corp), 21027 (Drs C3 & Aviation Company Dba Drs Data & Imaging Systems).

What NSN replaces 3120-00-432-4059?

There are 10 known substitutes for 3120-00-432-4059: 5950-00-451-5508, 5305-00-591-3320, 5905-00-794-4034 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21027?

Key specifications for 21027: Corner Shape: SQUARE INSIDE RIGHT CORNER; Spherical Body Diameter: 0.9600 INCHES NOMINAL IN; Overall Length: 0.5000 INCHES NOMINAL IN; Corner Shape: SQUARE INSIDE LEFT CORNER. 5 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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