PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21323Bearing,sleeve

Moog Inc. Dba Ampac-Isp Corp · NSN 3120-01-190-4123 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-190-4123 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-190-4123. Primary manufacturer part number: 21323.
Features
  • Bearing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 3.7500 INCHES NOMINAL IN
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 3.2500 INCHES NOMINAL IN
  • Material: COPPER ALLOY 260 OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • 2 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 260 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-190-4123, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Moog Inc. Dba Ampac-Isp Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-190-4123
Primary Part Number21323
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMoog Inc. Dba Ampac-Isp Corp
StatusACTIVE
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter3.7500 INCHES NOMINAL IN
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter3.2500 INCHES NOMINAL IN
MaterialCOPPER ALLOY 260 OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2520-00-163-248321323 INTERCHANGEABLE
Retainer
Komatsu America Corporation
5950-00-573-423021323 INTERCHANGEABLE
Transformer,audio Frequency
L3harris Technologies, Inc. Div Space and Airborne Systems
6240-00-617-0248P4214400 INTERCHANGEABLE
Lamp,incandescent
Phoenix Products Llc Dba Phoenix Lighting Products Llc
5330-00-641-691421323 INTERCHANGEABLE
Gasket
Sealcraft Corporation
5930-00-655-1518 INTERCHANGEABLE
Switch,toggle
2920-01-101-255226214 INTERCHANGEABLE
Parts Kit,coil Arm and Solenoid
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5340-01-102-1964213-615 INTERCHANGEABLE
Connector,rod End
Cnh Industrial America Llc Dba Cnh America
4010-01-268-693721323 INTERCHANGEABLE
Rope,wire
Mark Industries
4820-01-413-7563 INTERCHANGEABLE
Liner,valve
4820-01-418-356021323-850-1 INTERCHANGEABLE
Sleeve and Slide,directional Con
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21323 PRIMARY Moog Inc. Dba Ampac-Isp Corp (USA)
4000-22850 ITEM 24 Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
2520-00-163-2483INTERCHANGEABLE
RETAINER
21323
5950-00-573-4230INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
21323
6240-00-617-0248INTERCHANGEABLE
LAMP,INCANDESCENT
P4214400
5330-00-641-6914INTERCHANGEABLE
GASKET
21323
5930-00-655-1518INTERCHANGEABLE
SWITCH,TOGGLE
2920-01-101-2552INTERCHANGEABLE
PARTS KIT,COIL ARM AND SOLENOID
26214
5340-01-102-1964INTERCHANGEABLE
CONNECTOR,ROD END
213-615
4010-01-268-6937INTERCHANGEABLE
ROPE,WIRE
21323
4820-01-413-7563INTERCHANGEABLE
LINER,VALVE
4820-01-418-3560INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
21323-850-1

Frequently Asked Questions

What is NSN 3120-01-190-4123?

NSN 3120-01-190-4123 is a Bearing,sleeve, manufactured by Moog Inc. Dba Ampac-Isp Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-190-4123?

NSN 3120-01-190-4123 has 2 cross-referenced part numbers: 21323 (Moog Inc. Dba Ampac-Isp Corp), 4000-22850 ITEM 24 (Moog Inc. Dba Ampac-Isp Corp).

What NSN replaces 3120-01-190-4123?

There are 10 known substitutes for 3120-01-190-4123: 2520-00-163-2483, 5950-00-573-4230, 6240-00-617-0248 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21323?

Key specifications for 21323: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Outside Diameter: 3.7500 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS; Body Inside Diameter: 3.2500 INCHES NOMINAL IN. 7 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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