PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5100-66Ring,retaining

Truarc Company Llc Dba Waldes Truarc · NSN 5325-01-243-4942 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-243-4942 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-243-4942. Primary manufacturer part number: 5100-66.
Features
  • Ring,retaining — FSC 5325
  • Cross-Sectional Shape Style: RECTANGULAR
  • Inside Diameter: 0.611 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
  • Criticality Code Justification: ZZZY
  • Usage Design: EXTERNAL
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPERCIFICATIONS.
  • Ring Style: EXTERNAL
  • Major Thickness: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-243-4942, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Truarc Company Llc Dba Waldes Truarc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-243-4942
Primary Part Number5100-66
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTruarc Company Llc Dba Waldes Truarc
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Inside Diameter0.611 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
Criticality Code JustificationZZZY
Usage DesignEXTERNAL
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPERCIFICATIONS.
Ring StyleEXTERNAL
Major Thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-141-0743 INTERCHANGEABLE
Resistor,fixed,composition
5325-00-282-1830 INTERCHANGEABLE
Ring,retaining
6680-00-700-1185 INTERCHANGEABLE
Float Stop
5325-01-243-4943 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
5100-66 Truarc Company Llc Dba Waldes Truarc (USA)
5100-66 Rotor Clip Company, Inc. (USA)
A09285 Emerson Electric Co Emerson Specialty Motor Div (USA)
24A092850300 Emerson Electric Co Emerson Specialty Motor Div (USA)
Related Parts
5905-00-141-0743INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5325-00-282-1830INTERCHANGEABLE
RING,RETAINING
6680-00-700-1185INTERCHANGEABLE
FLOAT STOP
5325-01-243-4943INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5325-01-243-4942?

NSN 5325-01-243-4942 is a Ring,retaining, manufactured by Truarc Company Llc Dba Waldes Truarc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-243-4942?

NSN 5325-01-243-4942 has 4 cross-referenced part numbers: 5100-66 (Truarc Company Llc Dba Waldes Truarc), 5100-66 (Rotor Clip Company, Inc.), A09285 (Emerson Electric Co Emerson Specialty Motor Div), 24A092850300 (Emerson Electric Co Emerson Specialty Motor Div).

What NSN replaces 5325-01-243-4942?

There are 4 known substitutes for 5325-01-243-4942: 5905-00-141-0743, 5325-00-282-1830, 6680-00-700-1185 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5100-66?

Key specifications for 5100-66: Cross-Sectional Shape Style: RECTANGULAR; Inside Diameter: 0.611 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Usage Design: EXTERNAL. 7 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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