PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1065300G4O-Ring

L3harris Technologies, Inc. · NSN 5331-00-990-8937 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-990-8937 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-990-8937. Primary manufacturer part number: 1065300G4.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER SILICONE CLASS Q
  • 8 verified cross-references
  • Primary manufacturer: L3harris Technologies, Inc.
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 5331-00-990-8937, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-990-8937
Primary Part Number1065300G4
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerL3harris Technologies, Inc.
StatusCANCELLED
Center Hole Diameter0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER SILICONE CLASS Q
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5331-01-038-30762-012S613-6 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
Cross-Reference Index
Part NumberManufacturer
2-12-S613-60 Parker-Hannifin Corp Div O-Ring Division (USA)
802-6099-3/8 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
2-12-S613-60 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
2-12-S418-6 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
1602321-56 Mission Systems Davenport Inc. (USA)
11-012 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
1065300G4 PRIMARY L3harris Technologies, Inc. (USA)
1065300G4 Airco Republic Electronics, Inc. Div the Aeronautical Instrument & Radio Co (USA)
Related Parts
5331-01-038-3076INTERCHANGEABLE
O-RING
2-012S613-6

Frequently Asked Questions

What is NSN 5331-00-990-8937?

NSN 5331-00-990-8937 is a O-Ring, manufactured by L3harris Technologies, Inc., classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-990-8937?

NSN 5331-00-990-8937 has 8 cross-referenced part numbers: 2-12-S613-60 (Parker-Hannifin Corp Div O-Ring Division), 802-6099-3/8 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), 2-12-S613-60 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), 2-12-S418-6 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), 1602321-56 (Mission Systems Davenport Inc.) and 3 more.

What NSN replaces 5331-00-990-8937?

There is 1 known substitute for 5331-00-990-8937: 5331-01-038-3076. Verify interchangeability with system specifications before substitution.

What are the specifications of 1065300G4?

Key specifications for 1065300G4: Center Hole Diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: RUBBER SILICONE CLASS Q. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-990-8937 still in active supply?

NSN 5331-00-990-8937 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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