PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5100-66-S-MDRing,retaining

Truarc Co Llc · NSN 5325-00-282-1830 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-282-1830 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-282-1830. Primary manufacturer part number: 5100-66-S-MD.
Features
  • Ring,retaining — FSC 5325
  • Casehardening Indicator: NOT CASEHARDENED
  • Material: STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090
  • Material Document and Classification: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE
  • Surface Treatment: CADMIUM AND CHROMATE OR CHROMATE ZINC
  • Usage Design: EXTERNAL
  • Material Hardness Rating: 66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
  • Inside Diameter: 0.611 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp 1066 or Steel Comp 1069 or Steel Comp 1070 or Steel Comp 1072 or Steel Comp 1074 or Steel Comp 1075 or Steel Comp 1078 or Steel Comp 1080 or Steel Comp 1084 or Steel Comp 1086 or Steel Comp 1090 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-282-1830, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Truarc Co Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 22 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-282-1830
Primary Part Number5100-66-S-MD
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTruarc Co Llc
StatusCANCELLED
Casehardening IndicatorNOT CASEHARDENED
MaterialSTEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090
Material Document and ClassificationFED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE
Surface TreatmentCADMIUM AND CHROMATE OR CHROMATE ZINC
Usage DesignEXTERNAL
Material Hardness Rating66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Inside Diameter0.611 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Ring StyleEXTERNAL
Major Thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5905-00-141-0743 INTERCHANGEABLE
Resistor,fixed,composition
5325-00-282-6956 INTERCHANGEABLE
Ring,retaining
6680-00-700-1185 INTERCHANGEABLE
Float Stop
5325-01-243-4942 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
5100-66-S-MD Truarc Co Llc (USA)
92588-66 Honeywell International, Inc Div Aerospace-Tucson (USA)
4060001066 Zf Industrieantriebe Witten Gmbh (DEU)
5100-66MD Truarc Company Llc Dba Waldes Truarc (USA)
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS16624-1066 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5100-66 Timken Gears & Services Inc. Div Philadelphia Gear (USA)
907873 Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA)
5100-66-S-MD Truarc Company Llc Dba Waldes Truarc (USA)
5325PL0792428 Jednolity Indeks Materialowy - Uniform Material Index (POL)
49-14057 Johnson Controls, Inc Div Building Efficiency (USA)
NAS51-66 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5100-66-S-MD Rotor Clip Company, Inc. (USA)
5100-66MD Rotor Clip Company, Inc. (USA)
3100-66-ST-CD Rotor Clip Company, Inc. (USA)
5365002821830 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
907873 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
BH-2407 Zf Industrieantriebe Witten Gmbh (DEU)
5100-66 Zf Industrieantriebe Witten Gmbh (DEU)
MS16624-2066 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5905-00-141-0743INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5325-00-282-6956INTERCHANGEABLE
RING,RETAINING
6680-00-700-1185INTERCHANGEABLE
FLOAT STOP
5325-01-243-4942INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5325-00-282-1830?

NSN 5325-00-282-1830 is a Ring,retaining, manufactured by Truarc Co Llc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-282-1830?

NSN 5325-00-282-1830 has 22 cross-referenced part numbers: 5100-66-S-MD (Truarc Co Llc), 92588-66 (Honeywell International, Inc Div Aerospace-Tucson), 4060001066 (Zf Industrieantriebe Witten Gmbh), 5100-66MD (Truarc Company Llc Dba Waldes Truarc), MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 17 more.

What NSN replaces 5325-00-282-1830?

There are 4 known substitutes for 5325-00-282-1830: 5905-00-141-0743, 5325-00-282-6956, 6680-00-700-1185 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5100-66-S-MD?

Key specifications for 5100-66-S-MD: Casehardening Indicator: NOT CASEHARDENED; Material: STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090; Material Document and Classification: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE; Surface Treatment: CADMIUM AND CHROMATE OR CHROMATE ZINC. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-282-1830 still in active supply?

NSN 5325-00-282-1830 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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