PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6556Bearing,washer,thrust

Sachs-Boge of America · NSN 3120-00-765-6686 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-765-6686 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-765-6686. Primary manufacturer part number: 6556.
Features
  • Bearing,washer,thrust — FSC 3120
  • Counterbore Depth: 0.6149 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN
  • Overall Thickness: 0.7640 INCHES MINIMUM AND 0.7740 INCHES MAXIMUM IN
  • Counterbore Diameter: 2.1578 INCHES MINIMUM AND 2.1583 INCHES MAXIMUM IN
  • 11 verified cross-references
  • Primary manufacturer: Sachs-Boge of America
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Structural fastening and assembly
  • Equipment mounting
General Description

The Bearing,washer,thrust, cataloged under National Stock Number 3120-00-765-6686, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Sachs-Boge of America. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-765-6686
Primary Part Number6556
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerSachs-Boge of America
StatusCANCELLED
Counterbore Depth0.6149 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN
Overall Thickness0.7640 INCHES MINIMUM AND 0.7740 INCHES MAXIMUM IN
Counterbore Diameter2.1578 INCHES MINIMUM AND 2.1583 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-050-4203AS15001-1 INTERCHANGEABLE
Fitting,lubrication
Sae International Dba Sae International
5815-00-125-580474454 INTERCHANGEABLE
Cam
Telemechanics Inc
5950-00-203-2368119452 INTERCHANGEABLE
Coil,radio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4930-00-223-3387 INTERCHANGEABLE
Lubricating Gun,handheld
5905-00-270-1186104540-1 INTERCHANGEABLE
Resistance Element
Marathonnorco Aerospace, Inc. Dba Christie Electric
5306-00-489-4370 INTERCHANGEABLE
Bolt,machine
5950-00-583-090810-20076-7 INTERCHANGEABLE
Transformer,power Autotransforme
The Boeing Company Div Legacy Wichita
5315-00-772-2104107201 INTERCHANGEABLE
Pin,eccentric
Dana Off Highway Products, Llc
1450-00-797-5410FDC3270-3 INTERCHANGEABLE
Tie Down,guided Mis
Davis Aircraft Products Co., Inc.
5945-00-811-58711658085 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
147540 Hyster-Yale Group, Inc. (USA)
74454 Komatsu American Intl Co (USA)
74454 Komatsu America Corporation (USA)
158506R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
D74454 Komatsu America Corporation (USA)
158506R1 Navistar International Corporation Dba Navistar (USA)
74454 Komatsu America Corp. (USA)
F120576 Bros Inc
6556 PRIMARY Sachs-Boge of America (USA)
147540 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
119452 Komatsu American Intl Co (USA)
Related Parts
4730-00-050-4203INTERCHANGEABLE
FITTING,LUBRICATION
AS15001-1
5815-00-125-5804INTERCHANGEABLE
CAM
74454
5950-00-203-2368INTERCHANGEABLE
COIL,RADIO FREQUENCY
119452
4930-00-223-3387INTERCHANGEABLE
LUBRICATING GUN,HANDHELD
5905-00-270-1186INTERCHANGEABLE
RESISTANCE ELEMENT
104540-1
5306-00-489-4370INTERCHANGEABLE
BOLT,MACHINE
5950-00-583-0908INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
10-20076-7
5315-00-772-2104INTERCHANGEABLE
PIN,ECCENTRIC
107201
1450-00-797-5410INTERCHANGEABLE
TIE DOWN,GUIDED MIS
FDC3270-3
5945-00-811-5871INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1658085
5305-00-850-7036INTERCHANGEABLE
THUMBSCREW
6556
3040-01-008-5295INTERCHANGEABLE
DIFFERENTIAL GEAR UNIT
119452

Frequently Asked Questions

What is NSN 3120-00-765-6686?

NSN 3120-00-765-6686 is a Bearing,washer,thrust, manufactured by Sachs-Boge of America, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-765-6686?

NSN 3120-00-765-6686 has 11 cross-referenced part numbers: 147540 (Hyster-Yale Group, Inc.), 74454 (Komatsu American Intl Co), 74454 (Komatsu America Corporation), 158506R1 (Navistar Intl Corp Truck Br Ohio Plant), D74454 (Komatsu America Corporation) and 6 more.

What NSN replaces 3120-00-765-6686?

There are 12 known substitutes for 3120-00-765-6686: 4730-00-050-4203, 5815-00-125-5804, 5950-00-203-2368 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6556?

Key specifications for 6556: Counterbore Depth: 0.6149 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN; Overall Thickness: 0.7640 INCHES MINIMUM AND 0.7740 INCHES MAXIMUM IN; Counterbore Diameter: 2.1578 INCHES MINIMUM AND 2.1583 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-765-6686 still in active supply?

NSN 3120-00-765-6686 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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