PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3100-68Ring,retaining

Truarc Co Llc · NSN 5325-00-664-6806 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-664-6806 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-664-6806. Primary manufacturer part number: 3100-68.
Features
  • Ring,retaining — FSC 5325
  • Major Thickness: 0.042 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Inside Diameter: 0.635 INCHES NOMINAL IN
  • Material: STEEL
  • Material Hardness Rating: 66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
  • Usage Design: EXTERNAL
  • Casehardening Indicator: NOT CASEHARDENED
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-664-6806, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-664-6806
Primary Part Number3100-68
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTruarc Co Llc
StatusCANCELLED
Major Thickness0.042 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Inside Diameter0.635 INCHES NOMINAL IN
MaterialSTEEL
Material Hardness Rating66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Usage DesignEXTERNAL
Casehardening IndicatorNOT CASEHARDENED
Ring StyleEXTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5905-00-114-0711 INTERCHANGEABLE
Resistor,fixed,composition
1030-00-384-5483510068 INTERCHANGEABLE
Firing Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6220-00-809-334647434042 INTERCHANGEABLE
Headlight
New Holland N.v.nc.
5325-00-810-8932 INTERCHANGEABLE
Ring,retaining
5815-00-967-9040310068 INTERCHANGEABLE
Disc
Telemechanics Inc
3040-01-193-0500145742DW INTERCHANGEABLE
Brake Shoe
Eaton Corporation Dba Airflex Div Div Airflex
5325-01-245-3324D-73539-116 INTERCHANGEABLE
Ring,retaining
Flowserve Corp Dba Automax Actuators Div Flowserve Us Company
5325-01-252-9827SH-68ST PD INTERCHANGEABLE
Ring,retaining
Rotor Clip Company, Inc.
Cross-Reference Index
Part NumberManufacturer
3100-68 Truarc Co Llc (USA)
5100-68 Rotor Clip Company, Inc. (USA)
W4510-68 Waterous Company (USA)
42R2049-90 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
NAS51-68 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
3100-68 Rotor Clip Company, Inc. (USA)
5100-68 Truarc Company Llc Dba Waldes Truarc (USA)
MS16624-68 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
12Z64PC25 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5905-00-114-0711INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
1030-00-384-5483INTERCHANGEABLE
FIRING ASSEMBLY
510068
6220-00-809-3346INTERCHANGEABLE
HEADLIGHT
47434042
5325-00-810-8932INTERCHANGEABLE
RING,RETAINING
5815-00-967-9040INTERCHANGEABLE
DISC
310068
3040-01-193-0500INTERCHANGEABLE
BRAKE SHOE
145742DW
5325-01-245-3324INTERCHANGEABLE
RING,RETAINING
D-73539-116
5325-01-252-9827INTERCHANGEABLE
RING,RETAINING
SH-68ST PD

Frequently Asked Questions

What is NSN 5325-00-664-6806?

NSN 5325-00-664-6806 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 5325-00-664-6806?

NSN 5325-00-664-6806 has 9 cross-referenced part numbers: 3100-68 (Truarc Co Llc), 5100-68 (Rotor Clip Company, Inc.), W4510-68 (Waterous Company), 42R2049-90 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), NAS51-68 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 4 more.

What NSN replaces 5325-00-664-6806?

There are 8 known substitutes for 5325-00-664-6806: 5905-00-114-0711, 1030-00-384-5483, 6220-00-809-3346 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3100-68?

Key specifications for 3100-68: Major Thickness: 0.042 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Inside Diameter: 0.635 INCHES NOMINAL IN; Material: STEEL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-664-6806 still in active supply?

NSN 5325-00-664-6806 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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