PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

488625-166Ring,retaining

L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. · NSN 5325-00-804-7645 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-804-7645 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-804-7645. Primary manufacturer part number: 488625-166.
Features
  • Ring,retaining — FSC 5325
  • Material: STEEL COMP 632
  • Cross-Sectional Shape Style: RECTANGULAR
  • Ring Style: EXTERNAL
  • Surface Treatment: PASSIVATE
  • Material Document and Classification: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
  • Material Hardness Rating: 63.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
  • Usage Design: EXTERNAL
Applications
  • Applications requiring Steel Comp 632 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-804-7645, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 22 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-804-7645
Primary Part Number488625-166
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerL3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
StatusCANCELLED
MaterialSTEEL COMP 632
Cross-Sectional Shape StyleRECTANGULAR
Ring StyleEXTERNAL
Surface TreatmentPASSIVATE
Material Document and ClassificationAMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
Material Hardness Rating63.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Usage DesignEXTERNAL
Major Thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Inside Diameter0.456 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4730-00-496-6992Z26-1 INTERCHANGEABLE
Nipple,pipe
Applied Power Inc Power Packer
5910-00-805-1016D20-5F102G0 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Cornell-Dubilier Marketing Inc
5925-01-448-6657Q250 INTERCHANGEABLE
Circuit Breaker
Franklin Electric Co Inc
Cross-Reference Index
Part NumberManufacturer
488625-166 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
DM20F102G0500WV 4CR Zf Industrieantriebe Witten Gmbh (DEU)
Z2-6 Roller Bearing Co of America, Inc Div Pic Design (USA)
5325PL0789088 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3100-50SS2 Truarc Co Llc (USA)
8176734 Us Army Aviation and Missile Command (USA)
74341-14A Griswold Industries Dba Cla-Val Co (USA)
MS16624-4050 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AFB000500-21 The Hymatic Engineering Company Limited T/a Honeywell Hymatic (GBR)
277-502-1050 Northrop Grumman Systems Corporation (USA)
5100-50W Truarc Company Llc Dba Waldes Truarc (USA)
5100-50H Truarc Company Llc Dba Waldes Truarc (USA)
Q2-50-CP W. M. Berg, Inc. (USA)
Q2-50 W. M. Berg, Inc. (USA)
A158499-101-11 ITEM 9 General Dynamics Mission Systems, Inc. (USA)
95304A251 Mcmaster-Carr Supply Co (USA)
907774K35 Bendix Corp the (USA)
W-250-SS Thomson Industries Inc (USA)
0130-624-4050 Indal Technologies Inc (CAN)
Related Parts
4730-00-496-6992INTERCHANGEABLE
NIPPLE,PIPE
Z26-1
5910-00-805-1016INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
D20-5F102G0
5925-01-448-6657INTERCHANGEABLE
CIRCUIT BREAKER
Q250

Frequently Asked Questions

What is NSN 5325-00-804-7645?

NSN 5325-00-804-7645 is a Ring,retaining, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-804-7645?

NSN 5325-00-804-7645 has 27 cross-referenced part numbers: 488625-166 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), DM20F102G0500WV 4CR (Zf Industrieantriebe Witten Gmbh), Z2-6 (Roller Bearing Co of America, Inc Div Pic Design), 5325PL0789088 (Jednolity Indeks Materialowy - Uniform Material Index), MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 22 more.

What NSN replaces 5325-00-804-7645?

There are 3 known substitutes for 5325-00-804-7645: 4730-00-496-6992, 5910-00-805-1016, 5925-01-448-6657. Verify interchangeability with system specifications before substitution.

What are the specifications of 488625-166?

Key specifications for 488625-166: Material: STEEL COMP 632; Cross-Sectional Shape Style: RECTANGULAR; Ring Style: EXTERNAL; Surface Treatment: PASSIVATE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-804-7645 still in active supply?

NSN 5325-00-804-7645 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.
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