PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2181Bearing,sleeve

Weil Pump Co Inc · NSN 3120-00-661-7980 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-7980 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-7980. Primary manufacturer part number: 2181.
Features
  • Bearing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 1.5000 INCHES MINIMUM AND 1.5010 INCHES MAXIMUM IN
  • Surface Finish: 16.0 MICROINCHES RIGHT END SURFACE OF BODY
  • Lubricant Accommodation Style: GROOVED SINGLE X
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 1.0030 INCHES MINIMUM AND 1.0035 INCHES MAXIMUM IN
  • Corner Shape: CHAMFERED INSIDE RIGHT CORNER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-7980, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Weil Pump Co Inc. Government technical data includes 13 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-661-7980
Primary Part Number2181
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter1.5000 INCHES MINIMUM AND 1.5010 INCHES MAXIMUM IN
Surface Finish16.0 MICROINCHES RIGHT END SURFACE OF BODY
Lubricant Accommodation StyleGROOVED SINGLE X
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter1.0030 INCHES MINIMUM AND 1.0035 INCHES MAXIMUM IN
Corner ShapeCHAMFERED INSIDE RIGHT CORNER
Surface Finish8.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Surface Finish16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Corner ShapeCHAMFERED INSIDE LEFT CORNER
Surface Finish16.0 MICROINCHES LEFT END SURFACE OF BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-224-8956 INTERCHANGEABLE
Handle,bow
5315-00-252-59662-181 INTERCHANGEABLE
Key,woodruff
Precision Aerospace Corporation Dba Precision Engine Control
4240-00-258-20542181 INTERCHANGEABLE
Goggles,industrial
Iso Group Inc Dba Iso Group Inc
6515-00-364-092010-2530 INTERCHANGEABLE
Scissors,general Surgical
Boss Instruments, Limited Inc
5999-00-581-34149000S6202-742907YPE3JR5-3A INTERCHANGEABLE
Light-Switch Assembly
Naval Ship Systems Command
6550-00-926-22062181 INTERCHANGEABLE
Test Strips and Color Chart,bloo
Bayer Healthcare Llc Dba Bayer Healthcare-Viterion
6240-00-949-8109CM2181 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
4730-00-956-84442181 INTERCHANGEABLE
Parts Kit,steam Trap
Plenty Inc
6670-01-085-9745 INTERCHANGEABLE
Scale,weighing
4935-01-093-11682181 INTERCHANGEABLE
Multiplexer Assembl
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
Cross-Reference Index
Part NumberManufacturer
3290665 PC 39 Naval Ship Systems Command (USA)
2181 PRIMARY Weil Pump Co Inc (USA)
Related Parts
5340-00-224-8956INTERCHANGEABLE
HANDLE,BOW
5315-00-252-5966INTERCHANGEABLE
KEY,WOODRUFF
2-181
4240-00-258-2054INTERCHANGEABLE
GOGGLES,INDUSTRIAL
2181
6515-00-364-0920INTERCHANGEABLE
SCISSORS,GENERAL SURGICAL
10-2530
5999-00-581-3414INTERCHANGEABLE
LIGHT-SWITCH ASSEMBLY
9000S6202-742907YPE3JR5-3A
6550-00-926-2206INTERCHANGEABLE
TEST STRIPS AND COLOR CHART,BLOO
2181
6240-00-949-8109INTERCHANGEABLE
LAMP,INCANDESCENT
CM2181
4730-00-956-8444INTERCHANGEABLE
PARTS KIT,STEAM TRAP
2181
6670-01-085-9745INTERCHANGEABLE
SCALE,WEIGHING
4935-01-093-1168INTERCHANGEABLE
MULTIPLEXER ASSEMBL
2181
6145-01-117-6361INTERCHANGEABLE
BRAID,WIRE
5340-01-224-3710INTERCHANGEABLE
BUMPER
2181-103

Frequently Asked Questions

What is NSN 3120-00-661-7980?

NSN 3120-00-661-7980 is a Bearing,sleeve, manufactured by Weil Pump Co Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-7980?

NSN 3120-00-661-7980 has 2 cross-referenced part numbers: 3290665 PC 39 (Naval Ship Systems Command), 2181 (Weil Pump Co Inc).

What NSN replaces 3120-00-661-7980?

There are 12 known substitutes for 3120-00-661-7980: 5340-00-224-8956, 5315-00-252-5966, 4240-00-258-2054 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2181?

Key specifications for 2181: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Outside Diameter: 1.5000 INCHES MINIMUM AND 1.5010 INCHES MAXIMUM IN; Surface Finish: 16.0 MICROINCHES RIGHT END SURFACE OF BODY; Lubricant Accommodation Style: GROOVED SINGLE X. 14 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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