PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RSN600Ring,retaining

Spirolox Inc · NSN 5325-00-007-1623 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-007-1623 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-007-1623. Primary manufacturer part number: RSN600.
Features
  • Ring,retaining — FSC 5325
  • Casehardening Indicator: NOT CASEHARDENED
  • Usage Design: EXTERNAL
  • Outside Diameter: 6.405 INCHES NOMINAL IN
  • Material Hardness Rating: 41.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
  • Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE
  • Surface Treatment: PASSIVATE
  • Material: IRON ALLOY 660
Applications
  • Applications requiring Iron Alloy 660 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-007-1623, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Spirolox Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-007-1623
Primary Part NumberRSN600
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSpirolox Inc
StatusACTIVE
Casehardening IndicatorNOT CASEHARDENED
Usage DesignEXTERNAL
Outside Diameter6.405 INCHES NOMINAL IN
Material Hardness Rating41.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
Material Document and ClassificationAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE
Surface TreatmentPASSIVATE
MaterialIRON ALLOY 660
Cross-Sectional Shape StyleDOUBLE OVAL
Major Thickness0.123 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
Inside Diameter5.655 INCHES MINIMUM AND 5.705 INCHES MAXIMUM IN
Ring StyleSPIRAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5815-00-370-0533 INTERCHANGEABLE
Keytop,keyboard
3433-01-615-41391-5000-2 INTERCHANGEABLE
Cutting Machine,plasma Arc
Thermal Dynamics Corp
Cross-Reference Index
Part NumberManufacturer
151302 Omark Industries Inc Hydraulic Materials Handling Div (USA)
RSN600 PRIMARY Spirolox Inc (USA)
38-403-074 Omark Industries Inc Hydraulic Materials Handling Div (USA)
Related Parts
5815-00-370-0533INTERCHANGEABLE
KEYTOP,KEYBOARD
3433-01-615-4139INTERCHANGEABLE
CUTTING MACHINE,PLASMA ARC
1-5000-2

Frequently Asked Questions

What is NSN 5325-00-007-1623?

NSN 5325-00-007-1623 is a Ring,retaining, manufactured by Spirolox Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-007-1623?

NSN 5325-00-007-1623 has 3 cross-referenced part numbers: 151302 (Omark Industries Inc Hydraulic Materials Handling Div), RSN600 (Spirolox Inc), 38-403-074 (Omark Industries Inc Hydraulic Materials Handling Div).

What NSN replaces 5325-00-007-1623?

There are 2 known substitutes for 5325-00-007-1623: 5815-00-370-0533, 3433-01-615-4139. Verify interchangeability with system specifications before substitution.

What are the specifications of RSN600?

Key specifications for RSN600: Casehardening Indicator: NOT CASEHARDENED; Usage Design: EXTERNAL; Outside Diameter: 6.405 INCHES NOMINAL IN; Material Hardness Rating: 41.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM. 11 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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