PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4069O-Ring

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 5331-00-399-6971 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-399-6971 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-399-6971. Primary manufacturer part number: 4069.
Features
  • O-Ring — FSC 5331
  • Material: PLASTIC TETRAFLUOROETHYLENE
  • Cross-Sectional Height: 0.062 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
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 5331-00-399-6971, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-399-6971
Primary Part Number4069
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
MaterialPLASTIC TETRAFLUOROETHYLENE
Cross-Sectional Height0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-065-1031ST544 INTERCHANGEABLE
Puller,mechanical
Cummins Inc
5120-00-180-1015 INTERCHANGEABLE
Socket,socket Wrench
8135-00-281-40694069 INTERCHANGEABLE
Strapping
Independent Metal Strap Co Inc
5930-00-539-766110395521 INTERCHANGEABLE
Switch,slide
Us Army Aviation and Missile Command
2910-00-696-0367 INTERCHANGEABLE
Pump Assy,fuel
6210-00-782-75974069 INTERCHANGEABLE
Lens,light
L3harris Technologies, Inc. Div Space and Airborne Systems
5935-00-919-101140-108P3J0170 INTERCHANGEABLE
Connector Body,receptacle,electr
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5980-01-009-2144 INTERCHANGEABLE
Control-Display,optoelectronic
5962-01-124-9258 INTERCHANGEABLE
Microcircuit,digital
6645-01-289-62964069 INTERCHANGEABLE
Brake,clock
Wakmann Watch Company Inc
Cross-Reference Index
Part NumberManufacturer
4069 Zf Industrieantriebe Witten Gmbh (DEU)
4069 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
4069 Atkomatic Valve Co Inc (USA)
Related Parts
5120-00-065-1031INTERCHANGEABLE
PULLER,MECHANICAL
ST544
5120-00-180-1015INTERCHANGEABLE
SOCKET,SOCKET WRENCH
8135-00-281-4069INTERCHANGEABLE
STRAPPING
4069
5930-00-539-7661INTERCHANGEABLE
SWITCH,SLIDE
10395521
2910-00-696-0367INTERCHANGEABLE
PUMP ASSY,FUEL
6210-00-782-7597INTERCHANGEABLE
LENS,LIGHT
4069
5935-00-919-1011INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
40-108P3J0170
5980-01-009-2144INTERCHANGEABLE
CONTROL-DISPLAY,OPTOELECTRONIC
5962-01-124-9258INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6645-01-289-6296INTERCHANGEABLE
BRAKE,CLOCK
4069
3120-01-407-2804INTERCHANGEABLE
BEARING,PLAIN,ROD END
4069
5895-01-667-5007INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
4069

Frequently Asked Questions

What is NSN 5331-00-399-6971?

NSN 5331-00-399-6971 is a O-Ring, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-399-6971?

NSN 5331-00-399-6971 has 3 cross-referenced part numbers: 4069 (Zf Industrieantriebe Witten Gmbh), 4069 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 4069 (Atkomatic Valve Co Inc).

What NSN replaces 5331-00-399-6971?

There are 12 known substitutes for 5331-00-399-6971: 5120-00-065-1031, 5120-00-180-1015, 8135-00-281-4069 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4069?

Key specifications for 4069: Material: PLASTIC TETRAFLUOROETHYLENE; Cross-Sectional Height: 0.062 INCHES NOMINAL IN. 2 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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