PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

177-6Bearing,sleeve

Manitowoc Engineering Co Division of the Manitowoc Co Inc · NSN 3120-00-661-3910 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-3910 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-3910. Primary manufacturer part number: 177-6.
Features
  • Bearing,sleeve — FSC 3120
  • Hole Diameter: 0.2500 INCHES NOMINAL FIRST IN
  • Body Inside Diameter: 3.2630 INCHES MINIMUM AND 3.2650 INCHES MAXIMUM IN
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Style Designator: SOLID, EXTERNAL FLANGE ONE END
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Flange Outside Diameter: 4.6150 INCHES MINIMUM AND 4.6350 INCHES MAXIMUM IN
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 3120-00-661-3910, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Manitowoc Engineering Co Division of the Manitowoc Co Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN3120-00-661-3910
Primary Part Number177-6
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerManitowoc Engineering Co Division of the Manitowoc Co Inc
StatusACTIVE
Hole Diameter0.2500 INCHES NOMINAL FIRST IN
Body Inside Diameter3.2630 INCHES MINIMUM AND 3.2650 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Flange Outside Diameter4.6150 INCHES MINIMUM AND 4.6350 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Body Outside Diameter3.6900 INCHES MINIMUM AND 3.6910 INCHES MAXIMUM IN
Lubricant Accommodation StyleGROOVED SINGLE LOOP
Antirotation/lubrication Type and Quantity2 HOLE
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Flange Width0.3650 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-218-5941 INTERCHANGEABLE
Rotor,power
3940-00-263-3041S1801-860466 INTERCHANGEABLE
Block,tackle
Naval Ship Systems Command
6810-00-366-7048 INTERCHANGEABLE
Hydrazine Sulfate
9390-00-463-15361776 INTERCHANGEABLE
Nonmetallic Channel
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
6645-00-663-6002 INTERCHANGEABLE
Clock,panel
5120-00-760-96721776 INTERCHANGEABLE
Compressor
Cooper Machinery Services Llc
5815-00-859-656101776 INTERCHANGEABLE
Pawl Assembly
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
6685-00-978-50691776 INTERCHANGEABLE
Pinion Assembly,handstaff
Aerosonic Llc
5930-01-041-64861776 INTERCHANGEABLE
Switch,rotary
Janco Corporation Dba Janco Corp Div Mason Controls
5998-01-070-4141 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
177 Manitowoc Engineering Co Division of the Manitowoc Co Inc (USA)
177-6 PRIMARY Manitowoc Engineering Co Division of the Manitowoc Co Inc (USA)
Related Parts
4320-00-218-5941INTERCHANGEABLE
ROTOR,POWER
3940-00-263-3041INTERCHANGEABLE
BLOCK,TACKLE
S1801-860466
6810-00-366-7048INTERCHANGEABLE
HYDRAZINE SULFATE
9390-00-463-1536INTERCHANGEABLE
NONMETALLIC CHANNEL
1776
6645-00-663-6002INTERCHANGEABLE
CLOCK,PANEL
5120-00-760-9672INTERCHANGEABLE
COMPRESSOR
1776
5815-00-859-6561INTERCHANGEABLE
PAWL ASSEMBLY
01776
6685-00-978-5069INTERCHANGEABLE
PINION ASSEMBLY,HANDSTAFF
1776
5930-01-041-6486INTERCHANGEABLE
SWITCH,ROTARY
1776
5998-01-070-4141INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5340-01-147-8142INTERCHANGEABLE
CLAMP,LOOP
4820-01-210-4416INTERCHANGEABLE
FLOAT,VALVE
1776C

Frequently Asked Questions

What is NSN 3120-00-661-3910?

NSN 3120-00-661-3910 is a Bearing,sleeve, manufactured by Manitowoc Engineering Co Division of the Manitowoc Co Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-3910?

NSN 3120-00-661-3910 has 2 cross-referenced part numbers: 177 (Manitowoc Engineering Co Division of the Manitowoc Co Inc), 177-6 (Manitowoc Engineering Co Division of the Manitowoc Co Inc).

What NSN replaces 3120-00-661-3910?

There are 12 known substitutes for 3120-00-661-3910: 4320-00-218-5941, 3940-00-263-3041, 6810-00-366-7048 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 177-6?

Key specifications for 177-6: Hole Diameter: 0.2500 INCHES NOMINAL FIRST IN; Body Inside Diameter: 3.2630 INCHES MINIMUM AND 3.2650 INCHES MAXIMUM IN; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com