PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77173Bearing,plain,spherical

Triumph Engine Control Systems Llc · NSN 3120-00-965-7383 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-965-7383 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-965-7383. Primary manufacturer part number: 77173.
Features
  • Bearing,plain,spherical — FSC 3120
  • Surface Finish: 125.0 MICROINCHES OVERALL
  • Body Inside Diameter: 0.1645 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN
  • Style Designator: SOLID
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Spherical Body Diameter: 0.3436 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM IN
  • Material: STEEL COMP 440C OVERALL
  • Hardness Rating: 53.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 440c Overall construction
General Description

The Bearing,plain,spherical, cataloged under National Stock Number 3120-00-965-7383, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 8 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-965-7383
Primary Part Number77173
Item NameBearing,plain,spherical
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusACTIVE
Surface Finish125.0 MICROINCHES OVERALL
Body Inside Diameter0.1645 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN
Style DesignatorSOLID
Corner ShapeSQUARE INSIDE LEFT CORNER
Spherical Body Diameter0.3436 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM IN
MaterialSTEEL COMP 440C OVERALL
Hardness Rating53.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
Corner ShapeSQUARE INSIDE RIGHT CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5999-00-233-333814S132171-3B INTERCHANGEABLE
Mounting Pad,electrical-Electron
Herley Chicago Dba Stewart Warner Electronics
5940-00-269-853210-402-3 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
2940-00-494-8216VF80A INTERCHANGEABLE
Filter Element,intake Air Cleane
Vortox Company
1680-00-569-4435 INTERCHANGEABLE
Cover,folding Seat
2940-01-122-328642107 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
Cross-Reference Index
Part NumberManufacturer
77173 Goodrich Control Systems Gmbh (DEU)
77173 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
5999-00-233-3338INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
14S132171-3B
5940-00-269-8532INTERCHANGEABLE
TERMINAL,STUD
10-402-3
2940-00-494-8216INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
VF80A
1680-00-569-4435INTERCHANGEABLE
COVER,FOLDING SEAT
2940-01-122-3286INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42107

Frequently Asked Questions

What is NSN 3120-00-965-7383?

NSN 3120-00-965-7383 is a Bearing,plain,spherical, manufactured by Triumph Engine Control Systems Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-965-7383?

NSN 3120-00-965-7383 has 2 cross-referenced part numbers: 77173 (Goodrich Control Systems Gmbh), 77173 (Triumph Engine Control Systems Llc).

What NSN replaces 3120-00-965-7383?

There are 5 known substitutes for 3120-00-965-7383: 5999-00-233-3338, 5940-00-269-8532, 2940-00-494-8216 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 77173?

Key specifications for 77173: Surface Finish: 125.0 MICROINCHES OVERALL; Body Inside Diameter: 0.1645 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN; Style Designator: SOLID; Corner Shape: SQUARE INSIDE LEFT CORNER. 10 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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