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PartsTable / COMPONENT / B11-90-3946J
B11-90-3946J ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SEAL,FAN SHAFT is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include general_characteristics_item_description: 0.468 IN. SHAFT DIA,1.250 IN.

OD,0.693 IN. W IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-601-0050, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
B11-90-3946J
NSN: 5330-00-601-0050
FSC: 5330
CAGE: 0BT82 — GITS MFG CO INC (USA)
SPECIFICATIONS
general_characteristics_item_description0.468 IN. SHAFT DIA,1.250 IN. OD,0.693 IN. W IN
NSN5330-00-601-0050
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B11-90-3946J MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 0.468 IN. SHAFT DIA,1.250 IN. OD,0.693 IN. W IN
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTION0.468 IN. SHAFT DIA,1.250 IN. OD,0.693 IN. W IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
535932Interchangeable
interchangeable cross-reference
interchangeable
76299Interchangeable
interchangeable cross-reference
interchangeable
076299Interchangeable
interchangeable cross-reference
interchangeable
E2421PC35Interchangeable
interchangeable cross-reference
interchangeable
E2210PC22Interchangeable
interchangeable cross-reference
interchangeable
E2954PC62Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B11-90-3946J?
B11-90-3946J is a SEAL,FAN SHAFT.
What parts can replace B11-90-3946J?
There are 17 known substitutes for B11-90-3946J: 535932, 76299, 076299 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B11-90-3946J?
B11-90-3946J is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-601-0050. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026