PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16606-A03-211O-Ring

Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S · NSN 5331-00-476-7406 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-476-7406 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-476-7406. Primary manufacturer part number: 16606-A03-211.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Center Hole Diameter: 2.229 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Outside Diameter: 2.355 INCHES MINIMUM AND 2.403 INCHES MAXIMUM IN
  • 28 verified cross-references
  • Primary manufacturer: Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-476-7406, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 24 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-476-7406
Primary Part Number16606-A03-211
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerItt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
StatusCANCELLED
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Center Hole Diameter2.229 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Outside Diameter2.355 INCHES MINIMUM AND 2.403 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5331-00-250-0224MS29513-020 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-250-02270S026477 INTERCHANGEABLE
O-Ring
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-00-252-6048MS29513-006 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-265-1095MS29513-128 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
2-035 N602-70 Parker-Hannifin Corp Div O-Ring Division (USA)
725-70-035 Trostel Albert Packing Ltd (USA)
457-60-035 Parco, Llc (USA)
2661058B035 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
C-69-035 Federal-Mogul Corp Government Sales Dept (USA)
10V60-141-035 Houghton International Inc. (USA)
PX-1775-035 Acushnet Rubber Company, Inc. Dba Precix (USA)
MS29513-035 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
PRP-568-035-457-60 Parco, Llc (USA)
7866-035 Parker Hannifin Corporation Div O-Ring Division (USA)
2-35N602-70 Aerotech Gmbhgesellschaft Fuer Geraetetechnik (DEU)
60-P-31-035 West American Rubber Co Extrude Products Div (USA)
AV16E1270DITEM8 Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA)
2-035N602-70 Parker-Hannifin Gmbh Cylinder Division (DEU)
1793-035 Parker-Hannifin Corporation Div O-Ring Division (USA)
5331PL1355829 Jednolity Indeks Materialowy - Uniform Material Index (POL)
RT253-65-035 Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp (USA)
SAE-AS29513 Sae International Dba Sae International (USA)
946-915-9035 Kern and Co Ag (CHE)
18-1027 ITEM H6 Rulyn Inc (USA)
Related Parts
5331-00-250-0224INTERCHANGEABLE
O-RING
MS29513-020
5331-00-250-0227INTERCHANGEABLE
O-RING
0S026477
5331-00-252-6048INTERCHANGEABLE
O-RING
MS29513-006
5331-00-265-1095INTERCHANGEABLE
O-RING
MS29513-128

Frequently Asked Questions

What is NSN 5331-00-476-7406?

NSN 5331-00-476-7406 is a O-Ring, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-476-7406?

NSN 5331-00-476-7406 has 28 cross-referenced part numbers: 2-035 N602-70 (Parker-Hannifin Corp Div O-Ring Division), 725-70-035 (Trostel Albert Packing Ltd), 457-60-035 (Parco, Llc), 2661058B035 (Parker Hannifin Corporation Div Aerospace Group Headquarters), C-69-035 (Federal-Mogul Corp Government Sales Dept) and 23 more.

What NSN replaces 5331-00-476-7406?

There are 4 known substitutes for 5331-00-476-7406: 5331-00-250-0224, 5331-00-250-0227, 5331-00-252-6048 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16606-A03-211?

Key specifications for 16606-A03-211: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 2.229 INCHES MINIMUM AND 2.249 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Outside Diameter: 2.355 INCHES MINIMUM AND 2.403 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-476-7406 still in active supply?

NSN 5331-00-476-7406 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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