PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12265521-3Bearing,sleeve

Symmco Inc · NSN 3120-01-126-7510 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-126-7510 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-126-7510. Primary manufacturer part number: 12265521-3.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 0.6900 INCHES NOMINAL IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY 841 OVERALL
  • Body Outside Diameter: 0.8780 INCHES NOMINAL IN
  • 9 verified cross-references
  • Primary manufacturer: Symmco Inc
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 841 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-126-7510, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Symmco Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, 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
NSN3120-01-126-7510
Primary Part Number12265521-3
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerSymmco Inc
StatusACTIVE
Body Inside Diameter0.6900 INCHES NOMINAL IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY 841 OVERALL
Body Outside Diameter0.8780 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
1660-00-083-3521101-357 INTERCHANGEABLE
Dehydrator Assembly
Aerocontrolex Group, Inc.
3455-00-215-8560 INTERCHANGEABLE
File,rotary
5355-01-020-3111101357 INTERCHANGEABLE
Knob
Electronic Hardware Corp Dba Electronic Hardware Corp
5961-01-086-6247 INTERCHANGEABLE
Transistor
4820-01-104-4598101357 INTERCHANGEABLE
Cage,valve
Williams Controls Inc
5930-01-225-8499 INTERCHANGEABLE
Switch,sensitive
5970-01-626-4103101357-2 INTERCHANGEABLE
Insulation Sleeving,electrical,s
Naval Surface Warfare Center Dahlgren Div
5970-01-722-6870432L11 INTERCHANGEABLE
Insulation Sleeving,electrical
Nu-Tech Enterprises, Inc. Dba Nutech Enterprises
Cross-Reference Index
Part NumberManufacturer
AA851-2 Chrysler Corp Amplex Div (USA)
101357 Bearing Sales Corp (USA)
12265521-3 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
AA851-2 Bunting Bearings Corp Delta Plant (USA)
12265521-3 PRIMARY Symmco Inc (USA)
12265521-3 PRIMARY Chrysler Corp Amplex Div (USA)
A-851-2 Symmco Inc (USA)
12265521-3 PRIMARY Bunting Bearings Corp Delta Plant (USA)
12265521-3 PRIMARY Bearing Sales Corp (USA)
Related Parts
1660-00-083-3521INTERCHANGEABLE
DEHYDRATOR ASSEMBLY
101-357
3455-00-215-8560INTERCHANGEABLE
FILE,ROTARY
5355-01-020-3111INTERCHANGEABLE
KNOB
101357
5961-01-086-6247INTERCHANGEABLE
TRANSISTOR
4820-01-104-4598INTERCHANGEABLE
CAGE,VALVE
101357
5930-01-225-8499INTERCHANGEABLE
SWITCH,SENSITIVE
5970-01-626-4103INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL,S
101357-2
5970-01-722-6870INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
432L11

Frequently Asked Questions

What is NSN 3120-01-126-7510?

NSN 3120-01-126-7510 is a Bearing,sleeve, manufactured by Symmco Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-126-7510?

NSN 3120-01-126-7510 has 9 cross-referenced part numbers: AA851-2 (Chrysler Corp Amplex Div), 101357 (Bearing Sales Corp), 12265521-3 (U S Army Tank Automotive Command Amsta-Im-Mm), AA851-2 (Bunting Bearings Corp Delta Plant), 12265521-3 (Symmco Inc) and 4 more.

What NSN replaces 3120-01-126-7510?

There are 8 known substitutes for 3120-01-126-7510: 1660-00-083-3521, 3455-00-215-8560, 5355-01-020-3111 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12265521-3?

Key specifications for 12265521-3: Body Inside Diameter: 0.6900 INCHES NOMINAL IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Corner Shape: SQUARE ALL CORNERS; Material: COPPER ALLOY 841 OVERALL. 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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