PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

149566O-Ring

Curtiss-Wright Controls, Inc. Div Actuation Division · NSN 5331-00-191-3758 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-191-3758 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-191-3758. Primary manufacturer part number: 149566.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.732 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN
  • Material: RUBBER
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Curtiss-Wright Controls, Inc. Div Actuation Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-191-3758, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 3 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-191-3758
Primary Part Number149566
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCurtiss-Wright Controls, Inc. Div Actuation Division
StatusACTIVE
Center Hole Diameter0.732 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN
MaterialRUBBER
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-100-059552637 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
6720-00-498-6419 INTERCHANGEABLE
Detent Slide
Cross-Reference Index
Part NumberManufacturer
149566 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
SP131-14 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
Related Parts
3110-00-100-0595INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
52637
6720-00-498-6419INTERCHANGEABLE
DETENT SLIDE

Frequently Asked Questions

What is NSN 5331-00-191-3758?

NSN 5331-00-191-3758 is a O-Ring, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-191-3758?

NSN 5331-00-191-3758 has 2 cross-referenced part numbers: 149566 (Curtiss-Wright Controls, Inc. Div Actuation Division), SP131-14 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).

What NSN replaces 5331-00-191-3758?

There are 2 known substitutes for 5331-00-191-3758: 3110-00-100-0595, 6720-00-498-6419. Verify interchangeability with system specifications before substitution.

What are the specifications of 149566?

Key specifications for 149566: Center Hole Diameter: 0.732 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN; Material: RUBBER; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. 3 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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