PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10A6171Bearing,sleeve

Napco International Llc Dba Napco International Inc · NSN 3120-00-423-9664 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-423-9664 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-423-9664. Primary manufacturer part number: 10A6171.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 1.7500 INCHES MINIMUM AND 1.7510 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: COPPER ALLOY INNER LAYER
  • Material Document and Classification: MIL-S-11310 MIL SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
  • Material: STEEL COMP 1010 OUTER LAYER
  • Corner Shape: SQUARE ALL CORNERS
  • Body Outside Diameter: 1.8755 INCHES MINIMUM AND 1.8775 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Inner Layer construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-423-9664, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-423-9664
Primary Part Number10A6171
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusCANCELLED
Body Inside Diameter1.7500 INCHES MINIMUM AND 1.7510 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialCOPPER ALLOY INNER LAYER
Material Document and ClassificationMIL-S-11310 MIL SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
MaterialSTEEL COMP 1010 OUTER LAYER
Corner ShapeSQUARE ALL CORNERS
Body Outside Diameter1.8755 INCHES MINIMUM AND 1.8775 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-006-8230500-17 INTERCHANGEABLE
Tip,furniture Leg
Atlantic India Rubber Co Inc
5998-00-200-58082868322-1 INTERCHANGEABLE
Holder,electrical Card
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6110-00-250-297650017 INTERCHANGEABLE
Regulator,voltage
Ward Leonard Ct Llc
5330-00-291-638948626 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
3040-00-356-3236SC-B-69492 INTERCHANGEABLE
Lever,manual Control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-034-9958 INTERCHANGEABLE
Nut,valve
4140-01-191-64565001-7 INTERCHANGEABLE
Impeller,fan,axial
Bergstrom Inc
5331-01-280-7507 INTERCHANGEABLE
O-Ring
5985-01-285-8605500-1-7 INTERCHANGEABLE
Case,radio Frequency Transmissio
Honeywell Intl Dba Honeywell Div Business and General Aviation
6605-01-419-5541 INTERCHANGEABLE
Compass,gyro
Cross-Reference Index
Part NumberManufacturer
5B0759 Caterpillar Inc Div Caterpillar Defense (USA)
10A6171 PRIMARY Napco International Llc Dba Napco International Inc (USA)
50017 PRIMARY Trw Inc Trw Commercial Steering Div (USA)
5B759 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5340-00-006-8230INTERCHANGEABLE
TIP,FURNITURE LEG
500-17
5998-00-200-5808INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
2868322-1
6110-00-250-2976INTERCHANGEABLE
REGULATOR,VOLTAGE
50017
5330-00-291-6389INTERCHANGEABLE
SEAL,PLAIN ENCASED
48626
3040-00-356-3236INTERCHANGEABLE
LEVER,MANUAL CONTROL
SC-B-69492
4820-01-034-9958INTERCHANGEABLE
NUT,VALVE
4140-01-191-6456INTERCHANGEABLE
IMPELLER,FAN,AXIAL
5001-7
5331-01-280-7507INTERCHANGEABLE
O-RING
5985-01-285-8605INTERCHANGEABLE
CASE,RADIO FREQUENCY TRANSMISSIO
500-1-7
6605-01-419-5541INTERCHANGEABLE
COMPASS,GYRO
5920-01-440-3289INTERCHANGEABLE
FUSE,CARTRIDGE
50017
8145-01-519-1613INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,E
50017

Frequently Asked Questions

What is NSN 3120-00-423-9664?

NSN 3120-00-423-9664 is a Bearing,sleeve, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-423-9664?

NSN 3120-00-423-9664 has 4 cross-referenced part numbers: 5B0759 (Caterpillar Inc Div Caterpillar Defense), 10A6171 (Napco International Llc Dba Napco International Inc), 50017 (Trw Inc Trw Commercial Steering Div), 5B759 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 3120-00-423-9664?

There are 12 known substitutes for 3120-00-423-9664: 5340-00-006-8230, 5998-00-200-5808, 6110-00-250-2976 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10A6171?

Key specifications for 10A6171: Body Inside Diameter: 1.7500 INCHES MINIMUM AND 1.7510 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material: COPPER ALLOY INNER LAYER; Material Document and Classification: MIL-S-11310 MIL SPEC SINGLE MATERIAL RESPONSE OUTER LAYER. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-423-9664 still in active supply?

NSN 3120-00-423-9664 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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