PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-908S455-7O-Ring

Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division · NSN 5331-00-135-0976 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-135-0976 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-135-0976. Primary manufacturer part number: 3-908S455-7.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
  • Outside Diameter: 0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
  • Material: RUBBER SILICONE CLASS Q
  • Temp Rating: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
  • 6 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Class Q construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-135-0976, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-135-0976
Primary Part Number3-908S455-7
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
StatusACTIVE
Center Hole Diameter0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
Outside Diameter0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
MaterialRUBBER SILICONE CLASS Q
Temp Rating-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Cross-Sectional Height0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5331-00-020-0105 INTERCHANGEABLE
O-Ring
5331-00-072-83533-908S613-60 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-224-1014 INTERCHANGEABLE
O-Ring
5331-00-404-6304 INTERCHANGEABLE
O-Ring
5331-01-011-9707AS568-908 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-126-1231 INTERCHANGEABLE
O-Ring
5331-01-132-3422321233P1 INTERCHANGEABLE
O-Ring
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5331-01-181-0821 INTERCHANGEABLE
O-Ring
5331-01-288-8357 INTERCHANGEABLE
O-Ring
5331-01-380-3676DN60FF-3K4-00 PC19 INTERCHANGEABLE
O-Ring
Dante Valve Company
Cross-Reference Index
Part NumberManufacturer
3-908S455-7 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
AS568-908 Society of Automotive Engineers Inc (USA)
3-908S0455-70 Leonardo Spa Helicopters Division - Production Site (ITA)
3-908S455-70 Parker-Hannifin Corp Div O-Ring Division (USA)
3-908S455-7 Parker-Hannifin Corp Div O-Ring Division (USA)
AS568-908 Sae International Dba Sae International (USA)
Related Parts
5331-00-020-0105INTERCHANGEABLE
O-RING
5331-00-072-8353INTERCHANGEABLE
O-RING
3-908S613-60
5331-00-224-1014INTERCHANGEABLE
O-RING
5331-00-404-6304INTERCHANGEABLE
O-RING
5331-01-011-9707INTERCHANGEABLE
O-RING
AS568-908
5331-01-126-1231INTERCHANGEABLE
O-RING
5331-01-132-3422INTERCHANGEABLE
O-RING
321233P1
5331-01-181-0821INTERCHANGEABLE
O-RING
5331-01-288-8357INTERCHANGEABLE
O-RING
5331-01-380-3676INTERCHANGEABLE
O-RING
DN60FF-3K4-00 PC19
5331-01-473-1946INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-00-135-0976?

NSN 5331-00-135-0976 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-135-0976?

NSN 5331-00-135-0976 has 6 cross-referenced part numbers: 3-908S455-7 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), AS568-908 (Society of Automotive Engineers Inc), 3-908S0455-70 (Leonardo Spa Helicopters Division - Production Site), 3-908S455-70 (Parker-Hannifin Corp Div O-Ring Division), 3-908S455-7 (Parker-Hannifin Corp Div O-Ring Division) and 1 more.

What NSN replaces 5331-00-135-0976?

There are 11 known substitutes for 5331-00-135-0976: 5331-00-020-0105, 5331-00-072-8353, 5331-00-224-1014 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-908S455-7?

Key specifications for 3-908S455-7: Center Hole Diameter: 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN; Outside Diameter: 0.803 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN; Material: RUBBER SILICONE CLASS Q; Temp Rating: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF. 6 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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