PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8-18-7Ring,retaining

L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. · NSN 5325-01-494-0539 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-494-0539 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-494-0539. Primary manufacturer part number: 8-18-7.
Features
  • Ring,retaining — FSC 5325
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 2 verified cross-references
  • Primary manufacturer: L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-494-0539, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-494-0539
Primary Part Number8-18-7
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerL3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-288-9513 INTERCHANGEABLE
Coupling,clamp,pipe
5355-00-667-5538 INTERCHANGEABLE
Knob
1650-00-850-47028937 INTERCHANGEABLE
Tube Subassembly Se
Hawker Pacific Aerospace
5960-01-005-1192 INTERCHANGEABLE
Electron Tube
5360-01-025-17168187 INTERCHANGEABLE
Spring
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4820-01-186-86592-00087 INTERCHANGEABLE
Valve,safety Relief
Trinity Tool Co Div Trinco Trinity Tool Company
5325-01-234-2141700062-K2 INTERCHANGEABLE
Ring,retaining
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
2530-01-436-7011 INTERCHANGEABLE
Retainer,arm Bushing
5310-01-494-0276 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
8-18-7 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
700062-K2 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
Related Parts
4730-00-288-9513INTERCHANGEABLE
COUPLING,CLAMP,PIPE
5355-00-667-5538INTERCHANGEABLE
KNOB
1650-00-850-4702INTERCHANGEABLE
TUBE SUBASSEMBLY SE
8937
5960-01-005-1192INTERCHANGEABLE
ELECTRON TUBE
5360-01-025-1716INTERCHANGEABLE
SPRING
8187
4820-01-186-8659INTERCHANGEABLE
VALVE,SAFETY RELIEF
2-00087
5325-01-234-2141INTERCHANGEABLE
RING,RETAINING
700062-K2
2530-01-436-7011INTERCHANGEABLE
RETAINER,ARM BUSHING
5310-01-494-0276INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5325-01-494-0539?

NSN 5325-01-494-0539 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: active.

What are the part numbers for NSN 5325-01-494-0539?

NSN 5325-01-494-0539 has 2 cross-referenced part numbers: 8-18-7 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), 700062-K2 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).

What NSN replaces 5325-01-494-0539?

There are 9 known substitutes for 5325-01-494-0539: 4730-00-288-9513, 5355-00-667-5538, 1650-00-850-4702 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8-18-7?

Key specifications for 8-18-7: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 2 total characteristics are documented in the Federal Logistics Information System.

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