PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6665O-Ring

Liquid Controls, L.l.c. Div Idex Corporation · NSN 5331-01-268-0162 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-268-0162 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-268-0162. Primary manufacturer part number: 6665.
Features
  • O-Ring — FSC 5331
  • Material: PLASTIC TETRAFLUOROETHYLENE
  • 2 verified cross-references
  • Primary manufacturer: Liquid Controls, L.l.c. Div Idex Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Plastic Tetrafluoroethylene construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-268-0162, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Liquid Controls, L.l.c. Div Idex Corporation. Government technical data includes 1 verified specification, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-268-0162
Primary Part Number6665
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerLiquid Controls, L.l.c. Div Idex Corporation
StatusACTIVE
MaterialPLASTIC TETRAFLUOROETHYLENE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-00-254-8636 INTERCHANGEABLE
Valve,globe
5210-00-277-1619599-9642-50 INTERCHANGEABLE
Gage Stock,thickness
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
4720-00-857-1736 INTERCHANGEABLE
Hose,nonmetallic
5950-01-145-3042 INTERCHANGEABLE
Transformer
4730-01-172-75546665 INTERCHANGEABLE
Elbow,pipe
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
5315-01-196-79256665 INTERCHANGEABLE
Pin,straight,headless
Hein Werner Corp
1630-01-216-5619066-06500 INTERCHANGEABLE
Lining,friction
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
6150-01-388-59758909A522-001 INTERCHANGEABLE
Lead,electrical
The Entwistle Company Llc
6510-01-562-1999GG800 INTERCHANGEABLE
Skin Graft,human
Promethean Lifesciences Inc
Cross-Reference Index
Part NumberManufacturer
6665 PRIMARY Liquid Controls, L.l.c. Div Idex Corporation (USA)
9-4054-80-159 New Progress Inc (USA)
Related Parts
4820-00-254-8636INTERCHANGEABLE
VALVE,GLOBE
5210-00-277-1619INTERCHANGEABLE
GAGE STOCK,THICKNESS
599-9642-50
4720-00-857-1736INTERCHANGEABLE
HOSE,NONMETALLIC
5950-01-145-3042INTERCHANGEABLE
TRANSFORMER
4730-01-172-7554INTERCHANGEABLE
ELBOW,PIPE
6665
5315-01-196-7925INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
6665
1630-01-216-5619INTERCHANGEABLE
LINING,FRICTION
066-06500
6150-01-388-5975INTERCHANGEABLE
LEAD,ELECTRICAL
8909A522-001
6510-01-562-1999INTERCHANGEABLE
SKIN GRAFT,HUMAN
GG800

Frequently Asked Questions

What is NSN 5331-01-268-0162?

NSN 5331-01-268-0162 is a O-Ring, manufactured by Liquid Controls, L.l.c. Div Idex Corporation, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-268-0162?

NSN 5331-01-268-0162 has 2 cross-referenced part numbers: 6665 (Liquid Controls, L.l.c. Div Idex Corporation), 9-4054-80-159 (New Progress Inc).

What NSN replaces 5331-01-268-0162?

There are 9 known substitutes for 5331-01-268-0162: 4820-00-254-8636, 5210-00-277-1619, 4720-00-857-1736 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6665?

Key specifications for 6665: Material: PLASTIC TETRAFLUOROETHYLENE. 1 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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