PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HS4954-01Ring,retaining

The Boeing Company · NSN 5325-01-466-0438 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-466-0438 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-466-0438. Primary manufacturer part number: HS4954-01.
Features
  • Ring,retaining — FSC 5325
  • Material: STEEL
  • Surface Treatment: ZINC
  • Inside Diameter: 1.635 INCHES NOMINAL IN
  • Outside Diameter: 1.860 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
  • Material Diameter: 0.175 INCHES NOMINAL IN
  • Ring Style: SPIRAL
  • Cross-Sectional Shape Style: ROUND
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-466-0438, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-466-0438
Primary Part NumberHS4954-01
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
MaterialSTEEL
Surface TreatmentZINC
Inside Diameter1.635 INCHES NOMINAL IN
Outside Diameter1.860 INCHES MINIMUM AND 1.880 INCHES MAXIMUM IN
Material Diameter0.175 INCHES NOMINAL IN
Ring StyleSPIRAL
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3120-00-074-155990209 INTERCHANGEABLE
Bearing,flange
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
2805-00-271-907318012A INTERCHANGEABLE
Valve,poppet,engine
Brinkley Technology Group Llc Dba Hercules Manufacturing
2530-00-383-4830FC746 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5330-00-634-830990209 INTERCHANGEABLE
Gasket
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5998-01-553-331390209 INTERCHANGEABLE
Circuit Card Assembly
Espey Mfg and Electronics Corp
5315-01-584-0331 INTERCHANGEABLE
Key Ring,aircraft,m
5325-01-599-2257 INTERCHANGEABLE
Fastener,hook N Loc
5120-01-644-034990209 INTERCHANGEABLE
Extractor,screw
Lawson Products, Inc.
Cross-Reference Index
Part NumberManufacturer
HS4954-01 PRIMARY The Boeing Company (USA)
HS4954-01 Mcdonnell Douglas Helicopter Co Inc (USA)
90209 Worth Mfg Co (USA)
Related Parts
3120-00-074-1559INTERCHANGEABLE
BEARING,FLANGE
90209
2805-00-271-9073INTERCHANGEABLE
VALVE,POPPET,ENGINE
18012A
2530-00-383-4830INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FC746
5330-00-634-8309INTERCHANGEABLE
GASKET
90209
5998-01-553-3313INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
90209
5315-01-584-0331INTERCHANGEABLE
KEY RING,AIRCRAFT,M
5325-01-599-2257INTERCHANGEABLE
FASTENER,HOOK N LOC
5120-01-644-0349INTERCHANGEABLE
EXTRACTOR,SCREW
90209

Frequently Asked Questions

What is NSN 5325-01-466-0438?

NSN 5325-01-466-0438 is a Ring,retaining, manufactured by The Boeing Company, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-466-0438?

NSN 5325-01-466-0438 has 3 cross-referenced part numbers: HS4954-01 (The Boeing Company), HS4954-01 (Mcdonnell Douglas Helicopter Co Inc), 90209 (Worth Mfg Co).

What NSN replaces 5325-01-466-0438?

There are 8 known substitutes for 5325-01-466-0438: 3120-00-074-1559, 2805-00-271-9073, 2530-00-383-4830 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HS4954-01?

Key specifications for HS4954-01: Material: STEEL; Surface Treatment: ZINC; End Item Identification: APACHE ATTACK HELICOPTER; Inside Diameter: 1.635 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com