PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC-B-69877Bearing,sleeve

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3120-00-356-3499 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-356-3499 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-356-3499. Primary manufacturer part number: SC-B-69877.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Finish: 63.0 MICROINCHES RIGHT END SURFACE OF BODY
  • Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
  • Surface Finish: 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
  • Surface Finish: 63.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
  • Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
  • Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 642 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-356-3499, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN3120-00-356-3499
Primary Part NumberSC-B-69877
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Surface Finish63.0 MICROINCHES RIGHT END SURFACE OF BODY
Surface Finish32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Surface Finish63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
Surface Finish63.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
Surface Finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
Surface Finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
MaterialCOPPER ALLOY 642 OVERALL
Style DesignatorHEXAGON SHAPED FLANGE, EXTERNAL FLANGE ONE END
Material Document and ClassificationASTM B150 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter0.1405 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
Body Outside Diameter0.3105 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
Width Across Flats0.4375 INCHES NOMINAL IN
Flange Width0.1178 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3455-00-187-2561 INTERCHANGEABLE
File,rotary
5133-00-236-4059 INTERCHANGEABLE
Drill,twist
5365-00-335-932411516 INTERCHANGEABLE
Plug,machine Thread
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
2520-00-388-4197M279X INTERCHANGEABLE
Spider,universal Joint,vehicular
Meritor Heavy Vehicle Systems, Llc
4320-00-392-48733911516 INTERCHANGEABLE
Impeller,pump,centrifugal
Sicard a Division of Smi-Snowblast Inc Dba Sicard
5962-00-455-0843911411-9 INTERCHANGEABLE
Microcircuit,linear
Bae Systems Information and Electronic Systems Integration Inc.
5310-00-551-6680515-57 INTERCHANGEABLE
Washer,flat
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5930-00-627-7463 INTERCHANGEABLE
Switch,push
6125-00-988-583946-355 INTERCHANGEABLE
Motor-Generator
L3harris Maritime Power & Energy Solutions, Inc
5330-01-168-9169G4-7-15 INTERCHANGEABLE
Retainer,packing
Todd Combustion Inc
Cross-Reference Index
Part NumberManufacturer
51557 Kleinschmidt Inc (USA)
SC-B-69877 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
504LX Burke Products Inc (USA)
11516 Freund Precision Inc (USA)
Related Parts
3455-00-187-2561INTERCHANGEABLE
FILE,ROTARY
5133-00-236-4059INTERCHANGEABLE
DRILL,TWIST
5365-00-335-9324INTERCHANGEABLE
PLUG,MACHINE THREAD
11516
2520-00-388-4197INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
M279X
4320-00-392-4873INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3911516
5962-00-455-0843INTERCHANGEABLE
MICROCIRCUIT,LINEAR
911411-9
5310-00-551-6680INTERCHANGEABLE
WASHER,FLAT
515-57
5930-00-627-7463INTERCHANGEABLE
SWITCH,PUSH
6125-00-988-5839INTERCHANGEABLE
MOTOR-GENERATOR
46-355
5330-01-168-9169INTERCHANGEABLE
RETAINER,PACKING
G4-7-15
5355-01-223-6715INTERCHANGEABLE
KNOB
115-16
4240-01-251-3282INTERCHANGEABLE
COVER,RESPIRATOR

Frequently Asked Questions

What is NSN 3120-00-356-3499?

NSN 3120-00-356-3499 is a Bearing,sleeve, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-356-3499?

NSN 3120-00-356-3499 has 4 cross-referenced part numbers: 51557 (Kleinschmidt Inc), SC-B-69877 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 504LX (Burke Products Inc), 11516 (Freund Precision Inc).

What NSN replaces 3120-00-356-3499?

There are 12 known substitutes for 3120-00-356-3499: 3455-00-187-2561, 5133-00-236-4059, 5365-00-335-9324 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SC-B-69877?

Key specifications for SC-B-69877: Corner Shape: SQUARE ALL CORNERS; Surface Finish: 63.0 MICROINCHES RIGHT END SURFACE OF BODY; Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE. 15 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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