PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25-806609Ring,retaining

Brunswick Corp Dba Mercury Marine Div Mercury Marine · NSN 5325-01-645-4900 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-645-4900 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-645-4900. Primary manufacturer part number: 25-806609.
Features
  • Ring,retaining — FSC 5325
  • 2 verified cross-references
  • Primary manufacturer: Brunswick Corp Dba Mercury Marine Div Mercury Marine
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-645-4900, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brunswick Corp Dba Mercury Marine Div Mercury Marine. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-645-4900
Primary Part Number25-806609
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerBrunswick Corp Dba Mercury Marine Div Mercury Marine
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5365-00-585-5530004-0010-50 INTERCHANGEABLE
Spacer,ring
Metso Automation Usa, Inc
5940-00-925-457932509 INTERCHANGEABLE
Splice,conductor
Abb Installation Products Inc
5120-01-292-984932509 INTERCHANGEABLE
Wrench,socket
Summit Tool Company
Cross-Reference Index
Part NumberManufacturer
32509 Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
25-806609 PRIMARY Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
Related Parts
5365-00-585-5530INTERCHANGEABLE
SPACER,RING
004-0010-50
5940-00-925-4579INTERCHANGEABLE
SPLICE,CONDUCTOR
32509
5120-01-292-9849INTERCHANGEABLE
WRENCH,SOCKET
32509

Frequently Asked Questions

What is NSN 5325-01-645-4900?

NSN 5325-01-645-4900 is a Ring,retaining, manufactured by Brunswick Corp Dba Mercury Marine Div Mercury Marine, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-645-4900?

NSN 5325-01-645-4900 has 2 cross-referenced part numbers: 32509 (Brunswick Corp Dba Mercury Marine Div Mercury Marine), 25-806609 (Brunswick Corp Dba Mercury Marine Div Mercury Marine).

What NSN replaces 5325-01-645-4900?

There are 3 known substitutes for 5325-01-645-4900: 5365-00-585-5530, 5940-00-925-4579, 5120-01-292-9849. Verify interchangeability with system specifications before substitution.

What are the specifications of 25-806609?

Key specifications for 25-806609: End Item Identification: EXHAUST MANIFOLD & ELBOW 454/502 EFI MAGNUM ENGINE; Part Name Assigned by Controlling Agency: QUAD RING. 2 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