PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23611Ring,retaining

Helicopter Parts Service Inc · NSN 5325-00-849-4596 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-849-4596 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-849-4596. Primary manufacturer part number: 23611.
Features
  • Ring,retaining — FSC 5325
  • Material: STEEL
  • Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE
  • Outside Diameter: 2.970 INCHES NOMINAL IN
  • Material Diameter: 0.045 INCHES NOMINAL IN
  • Inside Diameter: 2.880 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: ROUND
  • Ring Style: INTERNAL STEPPED
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-849-4596, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Helicopter Parts Service Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-00-849-4596
Primary Part Number23611
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerHelicopter Parts Service Inc
StatusACTIVE
MaterialSTEEL
Material Document and ClassificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE
Outside Diameter2.970 INCHES NOMINAL IN
Material Diameter0.045 INCHES NOMINAL IN
Inside Diameter2.880 INCHES NOMINAL IN
Cross-Sectional Shape StyleROUND
Ring StyleINTERNAL STEPPED
Casehardening IndicatorNOT CASEHARDENED
Usage DesignINTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-137-001123611 INTERCHANGEABLE
Gasket
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5985-00-477-073223611 INTERCHANGEABLE
Rotary Coupler,radio Frequency
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
5950-00-679-050623611 INTERCHANGEABLE
Transformer,audio Frequency
L3harris Technologies, Inc. Div Space and Airborne Systems
4820-00-762-892623611 INTERCHANGEABLE
Valve,vacuum Regulator
Elbitamerica, Inc.
5950-01-062-2041145C831A01 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4310-01-336-82192361-1 INTERCHANGEABLE
Filter Element,intake Air Cleane
General Aviation Industries, Inc. Dba General Aviation Industries Inc
4920-01-690-40482361-1 INTERCHANGEABLE
Test Set,electronic Systems
Avtechtyee Inc Dba Avtech
5310-01-699-624323-611 INTERCHANGEABLE
Nut,plain,hexagon
DC Fabricators Inc
5365-01-732-39272361-1 INTERCHANGEABLE
Spacer,straight
Md Helicopters Inc
Cross-Reference Index
Part NumberManufacturer
23611 Helicopter Parts Service Inc (USA)
23611 Hiller Aircraft Corporation (USA)
Related Parts
5330-00-137-0011INTERCHANGEABLE
GASKET
23611
5985-00-477-0732INTERCHANGEABLE
ROTARY COUPLER,RADIO FREQUENCY
23611
5950-00-679-0506INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
23611
4820-00-762-8926INTERCHANGEABLE
VALVE,VACUUM REGULATOR
23611
5950-01-062-2041INTERCHANGEABLE
TRANSFORMER,POWER
145C831A01
4310-01-336-8219INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
2361-1
4920-01-690-4048INTERCHANGEABLE
TEST SET,ELECTRONIC SYSTEMS
2361-1
5310-01-699-6243INTERCHANGEABLE
NUT,PLAIN,HEXAGON
23-611
5365-01-732-3927INTERCHANGEABLE
SPACER,STRAIGHT
2361-1

Frequently Asked Questions

What is NSN 5325-00-849-4596?

NSN 5325-00-849-4596 is a Ring,retaining, manufactured by Helicopter Parts Service Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-849-4596?

NSN 5325-00-849-4596 has 2 cross-referenced part numbers: 23611 (Helicopter Parts Service Inc), 23611 (Hiller Aircraft Corporation).

What NSN replaces 5325-00-849-4596?

There are 9 known substitutes for 5325-00-849-4596: 5330-00-137-0011, 5985-00-477-0732, 5950-00-679-0506 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23611?

Key specifications for 23611: Material: STEEL; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 2.970 INCHES NOMINAL IN; Material Diameter: 0.045 INCHES NOMINAL IN. 9 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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