PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

172-25Ring Buoy,lifesaving

Eastern Co Div Eberhard Manufacturing · NSN 4220-01-727-9187 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-727-9187 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-727-9187. Primary manufacturer part number: 172-25.
Features
  • Ring Buoy,lifesaving — FSC 4220
  • 1 verified cross-reference
  • Primary manufacturer: Eastern Co Div Eberhard Manufacturing
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Buoy,lifesaving, cataloged under National Stock Number 4220-01-727-9187, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Eastern Co Div Eberhard Manufacturing. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-727-9187
Primary Part Number172-25
Item NameRing Buoy,lifesaving
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerEastern Co Div Eberhard Manufacturing
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6515-01-088-652017225 INTERCHANGEABLE
Plug,ear
Mine Safety Appliances Company
4820-01-156-829417225 INTERCHANGEABLE
Parts Kit,check Valve
Circor Aerospace, Inc. Dba Circor Aerospace Inc
3040-01-183-71857J6885 INTERCHANGEABLE
Shaft,straight
Caterpillar Inc Div Caterpillar Defense
5130-01-458-879628514 INTERCHANGEABLE
Sander,disk,pneumatic,portable
3m Company
Cross-Reference Index
Part NumberManufacturer
172-25 PRIMARY Eastern Co Div Eberhard Manufacturing (USA)
Related Parts
6515-01-088-6520INTERCHANGEABLE
PLUG,EAR
17225
4820-01-156-8294INTERCHANGEABLE
PARTS KIT,CHECK VALVE
17225
3040-01-183-7185INTERCHANGEABLE
SHAFT,STRAIGHT
7J6885
5130-01-458-8796INTERCHANGEABLE
SANDER,DISK,PNEUMATIC,PORTABLE
28514

Frequently Asked Questions

What is NSN 4220-01-727-9187?

NSN 4220-01-727-9187 is a Ring Buoy,lifesaving, manufactured by Eastern Co Div Eberhard Manufacturing, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-727-9187?

NSN 4220-01-727-9187 has 1 cross-referenced part number: 172-25 (Eastern Co Div Eberhard Manufacturing).

What NSN replaces 4220-01-727-9187?

There are 4 known substitutes for 4220-01-727-9187: 6515-01-088-6520, 4820-01-156-8294, 3040-01-183-7185 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 172-25?

Key specifications for 172-25: Part Name Assigned by Controlling Agency: RING BUOY, LIFESAVING. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com