PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3000-X185-SS2Ring,retaining

Truarc Co Llc · NSN 5325-00-663-2412 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-663-2412 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-663-2412. Primary manufacturer part number: 3000-X185-SS2.
Features
  • Ring,retaining — FSC 5325
  • Surface Treatment: PASSIVATE
  • Material: STEEL COMP 632
  • Material Document and Classification: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
  • Cross-Sectional Shape Style: RECTANGULAR
  • Usage Design: INTERNAL
  • Major Thickness: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
  • Material Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Applications
  • Applications requiring Steel Comp 632 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-663-2412, 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 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-663-2412
Primary Part Number3000-X185-SS2
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTruarc Co Llc
StatusCANCELLED
Surface TreatmentPASSIVATE
MaterialSTEEL COMP 632
Material Document and ClassificationAMS 5520 ASSN STD SINGLE MATERIAL RESPONSE
Cross-Sectional Shape StyleRECTANGULAR
Usage DesignINTERNAL
Major Thickness0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Material Hardness Rating44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Outside Diameter2.029 INCHES MINIMUM AND 2.089 INCHES MAXIMUM IN
Casehardening IndicatorNOT CASEHARDENED
Ring StyleINTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5961-00-007-41201901-0638 INTERCHANGEABLE
Rectifier,semiconductor Device
Avago Technologies Us Inc Div Avago Technologies
4920-00-025-3079 INTERCHANGEABLE
Thrust Trailer Asse
5935-00-261-75982041-6204-00 INTERCHANGEABLE
Adapter,connector
Tyco Electronics Corp
1660-00-567-6998202003 INTERCHANGEABLE
Sleeve,bearing Prel
Honeywell International Inc. Div Aerospace - Torrance
5930-00-989-472720-200-3 INTERCHANGEABLE
Switch,thermostatic
Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems
4320-01-022-8930CFSP-40997 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Defense Maritime Solutions, Inc.
5975-01-129-4935202003 INTERCHANGEABLE
Strip Supp Center
North Atlantic Industries, Inc. Dba North Atlantic Industries
4820-01-262-31372-02003 INTERCHANGEABLE
Valve,safety Relief
Trinity Tool Co Div Trinco Trinity Tool Company
2815-01-342-68204933355 INTERCHANGEABLE
Flywheel,engine
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
3000-X185-SS2 Truarc Co Llc (USA)
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS16625-4185 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
N5000-185H Rotor Clip Company, Inc. (USA)
N1300-185AS Seeger Inc Anderton-United Products Div (USA)
N5000-185H Truarc Company Llc Dba Waldes Truarc (USA)
202003 Zero-Max, Inc (USA)
Related Parts
5961-00-007-4120INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE
1901-0638
4920-00-025-3079INTERCHANGEABLE
THRUST TRAILER ASSE
5935-00-261-7598INTERCHANGEABLE
ADAPTER,CONNECTOR
2041-6204-00
1660-00-567-6998INTERCHANGEABLE
SLEEVE,BEARING PREL
202003
5930-00-989-4727INTERCHANGEABLE
SWITCH,THERMOSTATIC
20-200-3
4320-01-022-8930INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
CFSP-40997
5975-01-129-4935INTERCHANGEABLE
STRIP SUPP CENTER
202003
4820-01-262-3137INTERCHANGEABLE
VALVE,SAFETY RELIEF
2-02003
2815-01-342-6820INTERCHANGEABLE
FLYWHEEL,ENGINE
4933355

Frequently Asked Questions

What is NSN 5325-00-663-2412?

NSN 5325-00-663-2412 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 5325-00-663-2412?

NSN 5325-00-663-2412 has 7 cross-referenced part numbers: 3000-X185-SS2 (Truarc Co Llc), MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS16625-4185 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), N5000-185H (Rotor Clip Company, Inc.), N1300-185AS (Seeger Inc Anderton-United Products Div) and 2 more.

What NSN replaces 5325-00-663-2412?

There are 9 known substitutes for 5325-00-663-2412: 5961-00-007-4120, 4920-00-025-3079, 5935-00-261-7598 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3000-X185-SS2?

Key specifications for 3000-X185-SS2: Surface Treatment: PASSIVATE; Material: STEEL COMP 632; Material Document and Classification: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-663-2412 still in active supply?

NSN 5325-00-663-2412 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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