PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31934Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-01-518-7257 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-518-7257 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-518-7257. Primary manufacturer part number: 31934.
Features
  • Bearing,sleeve — FSC 3120
  • Material: COPPER ALLOY OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 1.1875 INCHES NOMINAL IN
  • Body Inside Diameter: 1.0000 INCHES NOMINAL IN
  • 5 verified cross-references
  • Primary manufacturer: Altra Industrial Motion Corp.
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 3120-01-518-7257, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-518-7257
Primary Part Number31934
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter1.1875 INCHES NOMINAL IN
Body Inside Diameter1.0000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5315-00-298-347231934 INTERCHANGEABLE
Pin,straight,headless
Wisconsin Motors, Llc
6210-00-299-4953 INTERCHANGEABLE
Light,indicator
1680-00-635-071131934 INTERCHANGEABLE
Actuator,electromechanical,rotar
Honeywell International Inc. Div Aerospace - Torrance
6515-01-578-1885319.34 INTERCHANGEABLE
Sleeve,protection,surgical,ortho
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
15881200 REV C FIND 26 Gulf Coast Holdings, Inc Dba Unidynamics (USA)
31934 PRIMARY Altra Industrial Motion Corp. (USA)
15881200 REV C Gulf Coast Holdings, Inc Dba Unidynamics (USA)
M1619-16 PRIMARY Altra Industrial Motion Corp. (USA)
15881200 REV C FIND 26 Jered Llc (USA)
Related Parts
5315-00-298-3472INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
31934
6210-00-299-4953INTERCHANGEABLE
LIGHT,INDICATOR
1680-00-635-0711INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
31934
6515-01-578-1885INTERCHANGEABLE
SLEEVE,PROTECTION,SURGICAL,ORTHO
319.34

Frequently Asked Questions

What is NSN 3120-01-518-7257?

NSN 3120-01-518-7257 is a Bearing,sleeve, manufactured by Altra Industrial Motion Corp., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-518-7257?

NSN 3120-01-518-7257 has 5 cross-referenced part numbers: 15881200 REV C FIND 26 (Gulf Coast Holdings, Inc Dba Unidynamics), 31934 (Altra Industrial Motion Corp.), 15881200 REV C (Gulf Coast Holdings, Inc Dba Unidynamics), M1619-16 (Altra Industrial Motion Corp.), 15881200 REV C FIND 26 (Jered Llc).

What NSN replaces 3120-01-518-7257?

There are 4 known substitutes for 3120-01-518-7257: 5315-00-298-3472, 6210-00-299-4953, 1680-00-635-0711 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31934?

Key specifications for 31934: End Item Identification: HATCH ASSEMBLY; Material: COPPER ALLOY OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Outside Diameter: 1.1875 INCHES NOMINAL IN. 6 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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