PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

556Bushing,sleeve

Rudomatic Inc · NSN 3120-00-182-8474 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-182-8474 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-182-8474. Primary manufacturer part number: 556.
Features
  • Bushing,sleeve — FSC 3120
  • Body Outside Diameter: 2.7540 INCHES MINIMUM AND 2.7560 INCHES MAXIMUM IN
  • Body Inside Diameter: 2.2530 INCHES MINIMUM AND 2.2550 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • 2 verified cross-references
  • Primary manufacturer: Rudomatic Inc
Applications
  • Industrial machinery bearing replacement
  • Motor and pump shaft assemblies
  • HVAC blower and fan assemblies
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-182-8474, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rudomatic Inc. Government technical data includes 4 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-182-8474
Primary Part Number556
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRudomatic Inc
StatusACTIVE
Body Outside Diameter2.7540 INCHES MINIMUM AND 2.7560 INCHES MAXIMUM IN
Body Inside Diameter2.2530 INCHES MINIMUM AND 2.2550 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4330-00-028-3910A01228-002 INTERCHANGEABLE
Bushing Assembly,drag
Alfa Laval Inc.
3110-00-100-0235397 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Garwood/feller Inc Garwood Winch Div
5910-00-161-092803105260 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Thales Components Corp Div Thales Components Corporation
5950-00-195-4244397 INTERCHANGEABLE
Reactor
Standard Industries
5110-00-198-4289 INTERCHANGEABLE
Reamer,hand
5935-00-240-4335397 INTERCHANGEABLE
Plug,tip
Birnbach Co Inc
5999-00-683-2161 INTERCHANGEABLE
Clip,electrical
5120-00-752-9755 INTERCHANGEABLE
Pliers,retaining Ring
6240-00-875-7980397 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5930-00-897-215439-7 INTERCHANGEABLE
Switch,push
Grayhill Inc
Cross-Reference Index
Part NumberManufacturer
556 Rudomatic Inc (USA)
397 Rudomatic Inc (USA)
Related Parts
4330-00-028-3910INTERCHANGEABLE
BUSHING ASSEMBLY,DRAG
A01228-002
3110-00-100-0235INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
397
5910-00-161-0928INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
03105260
5950-00-195-4244INTERCHANGEABLE
REACTOR
397
5110-00-198-4289INTERCHANGEABLE
REAMER,HAND
5935-00-240-4335INTERCHANGEABLE
PLUG,TIP
397
5999-00-683-2161INTERCHANGEABLE
CLIP,ELECTRICAL
5120-00-752-9755INTERCHANGEABLE
PLIERS,RETAINING RING
6240-00-875-7980INTERCHANGEABLE
LAMP,INCANDESCENT
397
5930-00-897-2154INTERCHANGEABLE
SWITCH,PUSH
39-7
5120-01-241-9600INTERCHANGEABLE
BENDER,TUBE,HAND
397
5977-01-421-5648INTERCHANGEABLE
BRUSH,BLOWER,PHOROM
397

Frequently Asked Questions

What is NSN 3120-00-182-8474?

NSN 3120-00-182-8474 is a Bushing,sleeve, manufactured by Rudomatic Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-182-8474?

NSN 3120-00-182-8474 has 2 cross-referenced part numbers: 556 (Rudomatic Inc), 397 (Rudomatic Inc).

What NSN replaces 3120-00-182-8474?

There are 12 known substitutes for 3120-00-182-8474: 4330-00-028-3910, 3110-00-100-0235, 5910-00-161-0928 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 556?

Key specifications for 556: Overall Length: 3.5000 INCHES NOMINAL IN; Body Outside Diameter: 2.7540 INCHES MINIMUM AND 2.7560 INCHES MAXIMUM IN; Body Inside Diameter: 2.2530 INCHES MINIMUM AND 2.2550 INCHES MAXIMUM IN; Corner Shape: SQUARE ALL CORNERS. 5 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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