PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-444Bearing,sleeve

Dresser Industries Inc Leroi Div · NSN 3120-00-376-8542 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-376-8542 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-376-8542. Primary manufacturer part number: 21-444.
Features
  • Bearing,sleeve — FSC 3120
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY 937 OVERALL
  • Body Inside Diameter: 1.4970 INCHES MINIMUM AND 1.4990 INCHES MAXIMUM IN
  • Lubricant Accommodation Style: GROOVED SINGLE X
  • Body Outside Diameter: 1.6910 INCHES MINIMUM AND 1.6920 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 937 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-376-8542, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-376-8542
Primary Part Number21-444
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY 937 OVERALL
Body Inside Diameter1.4970 INCHES MINIMUM AND 1.4990 INCHES MAXIMUM IN
Lubricant Accommodation StyleGROOVED SINGLE X
Body Outside Diameter1.6910 INCHES MINIMUM AND 1.6920 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-185-96248014762 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
5935-00-185-962621444 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5970-00-350-40832-144-4 INTERCHANGEABLE
Insulator,plate
Precision Aerospace Corporation Dba Precision Engine Control
5330-00-599-255210512743 INTERCHANGEABLE
Packing,preformed
General Dynamics Land Systems Canadacorp
5330-01-224-300821444 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Kidde Technologies, Inc Div Kidde Aerospace and Defense
4235-01-431-999321444 INTERCHANGEABLE
Boom,spill Containment,hazardous
A.r.k. Enterprises, Inc., the
6850-01-475-24451835920 INTERCHANGEABLE
Sealer,chemical
Loctite Corp
6685-01-511-232321444 INTERCHANGEABLE
Probe,humidity-Temperature
Rdf Corporation
Cross-Reference Index
Part NumberManufacturer
21-444 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5935-00-185-9624INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8014762
5935-00-185-9626INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
21444
5970-00-350-4083INTERCHANGEABLE
INSULATOR,PLATE
2-144-4
5330-00-599-2552INTERCHANGEABLE
PACKING,PREFORMED
10512743
5330-01-224-3008INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
21444
4235-01-431-9993INTERCHANGEABLE
BOOM,SPILL CONTAINMENT,HAZARDOUS
21444
6850-01-475-2445INTERCHANGEABLE
SEALER,CHEMICAL
1835920
6685-01-511-2323INTERCHANGEABLE
PROBE,HUMIDITY-TEMPERATURE
21444

Frequently Asked Questions

What is NSN 3120-00-376-8542?

NSN 3120-00-376-8542 is a Bearing,sleeve, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-376-8542?

NSN 3120-00-376-8542 has 1 cross-referenced part number: 21-444 (Dresser Industries Inc Leroi Div).

What NSN replaces 3120-00-376-8542?

There are 8 known substitutes for 3120-00-376-8542: 5935-00-185-9624, 5935-00-185-9626, 5970-00-350-4083 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-444?

Key specifications for 21-444: Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Corner Shape: SQUARE ALL CORNERS; Material: COPPER ALLOY 937 OVERALL. 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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