PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20756Bearing,sleeve

Tulsa Winch, Inc. · NSN 3120-00-661-5527 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-5527 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-5527. Primary manufacturer part number: 20756.
Features
  • Bearing,sleeve — FSC 3120
  • Lubricant Accommodation Style: INDENTED BALL AND GROOVED FIGURE 8
  • Body Inside Diameter: 2.4590 INCHES MINIMUM AND 2.4610 INCHES MAXIMUM IN
  • Body Outside Diameter: 2.7500 INCHES MINIMUM AND 2.7520 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: COPPER ALLOY OVERALL
  • Antirotation/lubrication Type and Quantity: 1 HOLE
  • Corner Shape: SQUARE ALL CORNERS
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 3120-00-661-5527, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Tulsa Winch, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN3120-00-661-5527
Primary Part Number20756
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerTulsa Winch, Inc.
StatusACTIVE
Lubricant Accommodation StyleINDENTED BALL AND GROOVED FIGURE 8
Body Inside Diameter2.4590 INCHES MINIMUM AND 2.4610 INCHES MAXIMUM IN
Body Outside Diameter2.7500 INCHES MINIMUM AND 2.7520 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialCOPPER ALLOY OVERALL
Antirotation/lubrication Type and Quantity1 HOLE
Corner ShapeSQUARE ALL CORNERS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6740-00-110-6626172-4 INTERCHANGEABLE
Blade,upper Right
Hollywood Film Company Manufacturing
6240-00-155-79371724 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5325-00-171-5950 INTERCHANGEABLE
Grommet,nonmetallic
3950-00-188-3357 INTERCHANGEABLE
Capstan
5305-00-253-78311724 INTERCHANGEABLE
Screw,cap,socket Head
Droitcour Co
5845-00-256-95141724 INTERCHANGEABLE
Generator,sawtooth
Senior Operations Llc Div Senior Aerospace Ketema
5975-00-284-6657 INTERCHANGEABLE
Elbow,electrical Conduit
5310-00-399-5319CNF00029 INTERCHANGEABLE
Washer,lock
Haskel International, Llc Dba Haskel International, Llc
4810-00-613-28578526601 INTERCHANGEABLE
Valve,seat
Us Army Aviation and Missile Command
5940-00-914-1831 INTERCHANGEABLE
Terminal,stud
Cross-Reference Index
Part NumberManufacturer
20756 PRIMARY Tulsa Winch, Inc. (USA)
20756 Vickers Inc (USA)
1724 Vickers Inc (USA)
Related Parts
6740-00-110-6626INTERCHANGEABLE
BLADE,UPPER RIGHT
172-4
6240-00-155-7937INTERCHANGEABLE
LAMP,INCANDESCENT
1724
5325-00-171-5950INTERCHANGEABLE
GROMMET,NONMETALLIC
3950-00-188-3357INTERCHANGEABLE
CAPSTAN
5305-00-253-7831INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
1724
5845-00-256-9514INTERCHANGEABLE
GENERATOR,SAWTOOTH
1724
5975-00-284-6657INTERCHANGEABLE
ELBOW,ELECTRICAL CONDUIT
5310-00-399-5319INTERCHANGEABLE
WASHER,LOCK
CNF00029
4810-00-613-2857INTERCHANGEABLE
VALVE,SEAT
8526601
5940-00-914-1831INTERCHANGEABLE
TERMINAL,STUD
5960-00-941-3819INTERCHANGEABLE
ELECTRON TUBE
20756
5330-00-965-0724INTERCHANGEABLE
GASKET
1724

Frequently Asked Questions

What is NSN 3120-00-661-5527?

NSN 3120-00-661-5527 is a Bearing,sleeve, manufactured by Tulsa Winch, Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-5527?

NSN 3120-00-661-5527 has 3 cross-referenced part numbers: 20756 (Tulsa Winch, Inc.), 20756 (Vickers Inc), 1724 (Vickers Inc).

What NSN replaces 3120-00-661-5527?

There are 12 known substitutes for 3120-00-661-5527: 6740-00-110-6626, 6240-00-155-7937, 5325-00-171-5950 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20756?

Key specifications for 20756: Lubricant Accommodation Style: INDENTED BALL AND GROOVED FIGURE 8; Overall Length: 3.0000 INCHES NOMINAL IN; Body Inside Diameter: 2.4590 INCHES MINIMUM AND 2.4610 INCHES MAXIMUM IN; Body Outside Diameter: 2.7500 INCHES MINIMUM AND 2.7520 INCHES MAXIMUM IN. 8 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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