PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS17811Bearing,washer,thrust

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 3120-00-165-5959 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-165-5959 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-165-5959. Primary manufacturer part number: MS17811.
Features
  • Bearing,washer,thrust — FSC 3120
  • Overall Thickness: 0.1850 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
  • Features Provided: CASEHARDENED
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Finish: 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER
  • Surface Finish: 32.0 MICROINCHES LEFT SIDE
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 3120-00-165-5959, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 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
NSN3120-00-165-5959
Primary Part NumberMS17811
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Overall Thickness0.1850 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface Finish125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Features ProvidedCASEHARDENED
Corner ShapeSQUARE ALL CORNERS
Surface Finish125.0 MICROINCHES LARGEST OUTSIDE DIAMETER
Surface Finish32.0 MICROINCHES LEFT SIDE
Surface Finish32.0 MICROINCHES RIGHT SIDE
Style DesignatorROUND
Material Document and ClassificationMIL-S-4174 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Diameter0.8770 INCHES MINIMUM AND 0.8820 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Outside Diameter2.2450 INCHES MINIMUM AND 2.2550 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-100-6354 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-102-7612 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-111-0711 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-487-4726 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-828-4550 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-855-1100 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-914-0781NAS74A6-203P INTERCHANGEABLE
Bushing,sleeve
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3120-00-969-2325 INTERCHANGEABLE
Bearing,washer,thrust
3120-00-975-1796 INTERCHANGEABLE
Bearing,washer,thrust
3120-01-117-6329 INTERCHANGEABLE
Bearing,washer,thrust
Cross-Reference Index
Part NumberManufacturer
MS17811 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS17811-18 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3120-00-100-6354INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-102-7612INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-111-0711INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-487-4726INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-828-4550INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-855-1100INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-914-0781INTERCHANGEABLE
BUSHING,SLEEVE
NAS74A6-203P
3120-00-969-2325INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-00-975-1796INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-01-117-6329INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-01-160-2223INTERCHANGEABLE
BEARING,WASHER,THRUST
3120-01-189-7501INTERCHANGEABLE
BEARING,WASHER,THRUST

Frequently Asked Questions

What is NSN 3120-00-165-5959?

NSN 3120-00-165-5959 is a Bearing,washer,thrust, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-165-5959?

NSN 3120-00-165-5959 has 2 cross-referenced part numbers: MS17811 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS17811-18 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3120-00-165-5959?

There are 12 known substitutes for 3120-00-165-5959: 3120-00-100-6354, 3120-00-102-7612, 3120-00-111-0711 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS17811?

Key specifications for MS17811: Overall Thickness: 0.1850 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN; Material: STEEL OVERALL; Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Features Provided: CASEHARDENED. 14 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