PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5100-143-S-MDRing,retaining

Truarc Company Llc Dba Waldes Truarc · NSN 5325-00-530-7957 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-530-7957 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-530-7957. Primary manufacturer part number: 5100-143-S-MD.
Features
  • Ring,retaining — FSC 5325
  • Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
  • Material Document and Classification: FED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
  • Material: STEEL
  • Surface Treatment: CADMIUM
  • Ring Style: EXTERNAL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Major Thickness: 0.050 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-530-7957, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-530-7957
Primary Part Number5100-143-S-MD
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTruarc Company Llc Dba Waldes Truarc
StatusCANCELLED
Material Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
Material Document and ClassificationFED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE
MaterialSTEEL
Surface TreatmentCADMIUM
Ring StyleEXTERNAL
Cross-Sectional Shape StyleRECTANGULAR
Major Thickness0.050 INCHES NOMINAL IN
Inside Diameter1.333 INCHES NOMINAL IN
Usage DesignEXTERNAL
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4810-00-115-8603117488 INTERCHANGEABLE
Valve Solenoid
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
5325-00-803-7299 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
5100-143-S-MD Truarc Company Llc Dba Waldes Truarc (USA)
5365005307957 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
117488 Zf Industrieantriebe Witten Gmbh (DEU)
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3100-143-ST-CD Truarc Co Llc (USA)
MS16624-1143 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5100-143MD Truarc Company Llc Dba Waldes Truarc (USA)
5100-143MD Rotor Clip Company, Inc. (USA)
NAS670-143 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
411170-1143 Raytheon Company Dba Raytheon (USA)
857476 Fluid Conditioning Products, Inc. (USA)
5100-150-S-MD Truarc Co Llc (USA)
MILR21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5100-143-S-MD Truarc Co Llc (USA)
Related Parts
4810-00-115-8603INTERCHANGEABLE
VALVE SOLENOID
117488
5325-00-803-7299INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5325-00-530-7957?

NSN 5325-00-530-7957 is a Ring,retaining, manufactured by Truarc Company Llc Dba Waldes Truarc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-530-7957?

NSN 5325-00-530-7957 has 14 cross-referenced part numbers: 5100-143-S-MD (Truarc Company Llc Dba Waldes Truarc), 5365005307957 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 117488 (Zf Industrieantriebe Witten Gmbh), MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3100-143-ST-CD (Truarc Co Llc) and 9 more.

What NSN replaces 5325-00-530-7957?

There are 2 known substitutes for 5325-00-530-7957: 4810-00-115-8603, 5325-00-803-7299. Verify interchangeability with system specifications before substitution.

What are the specifications of 5100-143-S-MD?

Key specifications for 5100-143-S-MD: Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Material Document and Classification: FED STD 66,FS1066 TO 1090 FED STD SINGLE MATERIAL RESPONSE; Material: STEEL; Surface Treatment: CADMIUM. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-530-7957 still in active supply?

NSN 5325-00-530-7957 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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