PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B4283Bushing,sleeve

Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division · NSN 3120-00-343-7785 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-343-7785 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-343-7785. Primary manufacturer part number: B4283.
Features
  • Bushing,sleeve — FSC 3120
  • 24 verified cross-references
  • Primary manufacturer: Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
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 3120-00-343-7785, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division. This item has 24 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBushing,sleeve
FSC / FSG3120 — No Item Name Available (FSG 31)
ManufacturersControl Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (CAGE 16603); Naval Ship Systems Command (CAGE 80064); Control Flow, Inc. Dba Control Flow Inc (CAGE 3X894)
Technical Specifications
ParameterValue
NSN3120-00-343-7785
Primary Part NumberB4283
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerControl Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5999-00-182-6214 INTERCHANGEABLE
Delay Line
5310-00-350-0594 INTERCHANGEABLE
Nut,plain,castellated,hexagon
1680-00-700-4500GA500AU1 INTERCHANGEABLE
Adapter Assy,cap
Northrop Grumman Systems Corporation
4820-00-822-0652428-3 INTERCHANGEABLE
Valve,gate
Crane Co Div Valve Div
5935-01-147-01144283 INTERCHANGEABLE
Adapter,connector
Fluke Electronics Corp
4510-01-155-5188 INTERCHANGEABLE
Faucet,double
5935-01-159-5514 INTERCHANGEABLE
Adapter,connector
5975-01-360-68374283 INTERCHANGEABLE
Mounting Base,electrical Equipme
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
4130-01-428-440977A108933P001 INTERCHANGEABLE
Filter Element,air Conditioning
Lockheed Martin Corporation Div Rms
Cross-Reference Index
Part NumberManufacturer
B4283 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
AN67S2601-706900H69WGW50178 Naval Ship Systems Command (USA)
LSD1S2000-271100H69WGW50178 Naval Ship Systems Command (USA)
N8350PC22 Control Flow, Inc. Dba Control Flow Inc (USA)
LSD1S2000-271100PC22 Naval Ship Systems Command (USA)
N8352ALTAPC22 Control Flow, Inc. Dba Control Flow Inc (USA)
N8350PC22 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
4283 Control Flow, Inc. Dba Control Flow Inc (USA)
N12923PC22 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
AN67S2601-706900PC22 Naval Ship Systems Command (USA)
LST491S2600-270520PC22 Naval Ship Systems Command (USA)
4283 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
N12923PC22 Control Flow, Inc. Dba Control Flow Inc (USA)
N16268ALTCPC22 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
N8352ALTAPC22 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
22B4283 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
LST491S2600-2705H69WGW50178 Naval Ship Systems Command (USA)
472450PC22 Naval Ship Systems Command (USA)
N12262APC22 Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division (USA)
B4283 Control Flow, Inc. Dba Control Flow Inc (USA)
Related Parts
5999-00-182-6214INTERCHANGEABLE
DELAY LINE
5310-00-350-0594INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
1680-00-700-4500INTERCHANGEABLE
ADAPTER ASSY,CAP
GA500AU1
4820-00-822-0652INTERCHANGEABLE
VALVE,GATE
428-3
5935-01-147-0114INTERCHANGEABLE
ADAPTER,CONNECTOR
4283
4510-01-155-5188INTERCHANGEABLE
FAUCET,DOUBLE
5935-01-159-5514INTERCHANGEABLE
ADAPTER,CONNECTOR
5975-01-360-6837INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
4283
4130-01-428-4409INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
77A108933P001

Frequently Asked Questions

What is NSN 3120-00-343-7785?

NSN 3120-00-343-7785 is a Bushing,sleeve, manufactured by Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-343-7785?

NSN 3120-00-343-7785 has 24 cross-referenced part numbers: B4283 (Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division), AN67S2601-706900H69WGW50178 (Naval Ship Systems Command), LSD1S2000-271100H69WGW50178 (Naval Ship Systems Command), N8350PC22 (Control Flow, Inc. Dba Control Flow Inc), LSD1S2000-271100PC22 (Naval Ship Systems Command) and 19 more.

What NSN replaces 3120-00-343-7785?

There are 9 known substitutes for 3120-00-343-7785: 5999-00-182-6214, 5310-00-350-0594, 1680-00-700-4500 and 6 more. Verify interchangeability with system specifications before substitution.

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