PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20251Ring,retaining

Kidde Technologies, Inc Div Kidde Aerospace and Defense · NSN 5325-00-351-5220 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-351-5220 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-351-5220. Primary manufacturer part number: 20251.
Features
  • Ring,retaining — FSC 5325
  • 6 verified cross-references
  • Primary manufacturer: Kidde Technologies, Inc Div Kidde Aerospace and Defense
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-351-5220, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kidde Technologies, Inc Div Kidde Aerospace and Defense. This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameRing,retaining
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersKidde-Fenwal, Llc (CAGE 0KDP7); Kidde Technologies, Inc Div Kidde Aerospace and Defense (CAGE 61423); A and H Machine and Tool Co (CAGE 61645); Zero-Max, Inc (CAGE 15128)
Technical Specifications
ParameterValue
NSN5325-00-351-5220
Primary Part Number20251
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerKidde Technologies, Inc Div Kidde Aerospace and Defense
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5315-00-027-202520251 INTERCHANGEABLE
Pin,straight,headless
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5999-00-035-8709 INTERCHANGEABLE
Contact,electrical
5935-00-192-9287201394-9 INTERCHANGEABLE
Cover,electrical Connector
Viking Technologies, Ltd.
5315-00-198-5967103574 INTERCHANGEABLE
Pin,tapered,plain
Us Army Aviation and Missile Command
5306-00-207-5167202037 INTERCHANGEABLE
Bolt,externally Relieved Body
Howmet Global Fastening Systems Inc Div Torrance Operations
5340-00-351-35922025-1 INTERCHANGEABLE
Clip,spring Tension
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
2920-00-718-1764SY52151 INTERCHANGEABLE
Switch,engine Starter,electrical
Tvh Parts Co.
2995-00-724-0151 INTERCHANGEABLE
Pilot,valve
5305-00-864-5721 INTERCHANGEABLE
Setscrew
5360-01-007-839303187003211 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Cross-Reference Index
Part NumberManufacturer
20251 Kidde-Fenwal, Llc (USA)
202078 Kidde-Fenwal, Llc (USA)
20251 PRIMARY Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA)
202037 PRIMARY Kidde-Fenwal, Llc (USA)
202078 PRIMARY A and H Machine and Tool Co (USA)
202078 Zero-Max, Inc (USA)
Related Parts
5315-00-027-2025INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
20251
5999-00-035-8709INTERCHANGEABLE
CONTACT,ELECTRICAL
5935-00-192-9287INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
201394-9
5315-00-198-5967INTERCHANGEABLE
PIN,TAPERED,PLAIN
103574
5306-00-207-5167INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
202037
5340-00-351-3592INTERCHANGEABLE
CLIP,SPRING TENSION
2025-1
2920-00-718-1764INTERCHANGEABLE
SWITCH,ENGINE STARTER,ELECTRICAL
SY52151
2995-00-724-0151INTERCHANGEABLE
PILOT,VALVE
5305-00-864-5721INTERCHANGEABLE
SETSCREW
5360-01-007-8393INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
03187003211
8040-01-154-0038INTERCHANGEABLE
ADHESIVE
5962-01-169-6663INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MC14025AL

Frequently Asked Questions

What is NSN 5325-00-351-5220?

NSN 5325-00-351-5220 is a Ring,retaining, manufactured by Kidde Technologies, Inc Div Kidde Aerospace and Defense, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-351-5220?

NSN 5325-00-351-5220 has 6 cross-referenced part numbers: 20251 (Kidde-Fenwal, Llc), 202078 (Kidde-Fenwal, Llc), 20251 (Kidde Technologies, Inc Div Kidde Aerospace and Defense), 202037 (Kidde-Fenwal, Llc), 202078 (A and H Machine and Tool Co) and 1 more.

What NSN replaces 5325-00-351-5220?

There are 12 known substitutes for 5325-00-351-5220: 5315-00-027-2025, 5999-00-035-8709, 5935-00-192-9287 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5325-00-351-5220 still in active supply?

NSN 5325-00-351-5220 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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