PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14438O-Ring

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5331-00-599-2818 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-599-2818 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-599-2818. Primary manufacturer part number: 14438.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.113 INCHES NOMINAL IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • 1 verified cross-reference
  • Primary manufacturer: Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-599-2818, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-599-2818
Primary Part Number14438
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusCANCELLED
Cross-Sectional Height0.113 INCHES NOMINAL IN
MaterialRUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5365-00-182-486214-438 INTERCHANGEABLE
Spacer,sleeve
Hamilton Sundstrand Corporation
5950-00-490-865714438 INTERCHANGEABLE
Reactor
Torotel, Inc. Div Torotel Products, Inc.
4820-00-495-913414438 INTERCHANGEABLE
Stem,fluid Valve
Mine Safety Appliances Company
5220-01-360-89271443-8 INTERCHANGEABLE
Gage,plug,thread
Stanley Engineered Fastening Llc
5305-01-564-5812144-38 INTERCHANGEABLE
Screw,cap,hexagon Head
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
14438 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
5365-00-182-4862INTERCHANGEABLE
SPACER,SLEEVE
14-438
5950-00-490-8657INTERCHANGEABLE
REACTOR
14438
4820-00-495-9134INTERCHANGEABLE
STEM,FLUID VALVE
14438
5220-01-360-8927INTERCHANGEABLE
GAGE,PLUG,THREAD
1443-8
5305-01-564-5812INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
144-38

Frequently Asked Questions

What is NSN 5331-00-599-2818?

NSN 5331-00-599-2818 is a O-Ring, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-599-2818?

NSN 5331-00-599-2818 has 1 cross-referenced part number: 14438 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5331-00-599-2818?

There are 5 known substitutes for 5331-00-599-2818: 5365-00-182-4862, 5950-00-490-8657, 4820-00-495-9134 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14438?

Key specifications for 14438: Cross-Sectional Height: 0.113 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-599-2818 still in active supply?

NSN 5331-00-599-2818 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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