PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

182721O-Ring

Woodward, Inc. Div Fuel Systems and Controls · NSN 5331-00-103-2969 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-103-2969 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-103-2969. Primary manufacturer part number: 182721.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.108 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • 2 verified cross-references
  • Primary manufacturer: Woodward, Inc. Div Fuel Systems and Controls
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-103-2969, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-103-2969
Primary Part Number182721
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerWoodward, Inc. Div Fuel Systems and Controls
StatusCANCELLED
Center Hole Diameter0.108 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5331-00-166-0963M83248/1-006 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
4140-00-185-157318272-1 INTERCHANGEABLE
Impeller,fan,axial
Rtx Corporation Div Pratt & Whitney
4730-01-011-622718272-1 INTERCHANGEABLE
Fitting,subassembly
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
182721 PRIMARY Woodward, Inc. Div Fuel Systems and Controls (USA)
82506-17 Woodward, Inc. Div Fuel Systems and Controls (USA)
Related Parts
5331-00-166-0963INTERCHANGEABLE
O-RING
M83248/1-006
4140-00-185-1573INTERCHANGEABLE
IMPELLER,FAN,AXIAL
18272-1
4730-01-011-6227INTERCHANGEABLE
FITTING,SUBASSEMBLY
18272-1

Frequently Asked Questions

What is NSN 5331-00-103-2969?

NSN 5331-00-103-2969 is a O-Ring, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-103-2969?

NSN 5331-00-103-2969 has 2 cross-referenced part numbers: 182721 (Woodward, Inc. Div Fuel Systems and Controls), 82506-17 (Woodward, Inc. Div Fuel Systems and Controls).

What NSN replaces 5331-00-103-2969?

There are 3 known substitutes for 5331-00-103-2969: 5331-00-166-0963, 4140-00-185-1573, 4730-01-011-6227. Verify interchangeability with system specifications before substitution.

What are the specifications of 182721?

Key specifications for 182721: Center Hole Diameter: 0.108 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-103-2969 still in active supply?

NSN 5331-00-103-2969 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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