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Technical Data Sheet
PartsTable / O-RING / 26-2399
26-2399 ✓ 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 HANDLE,CONTROL,SUMP is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT MODEL B52. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-311-9520, 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
26-2399
NSN: 5331-00-311-9520
FSC: 5331 — O-RING
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
end_item_identificationAIRCRAFT MODEL B52
general_characteristics_item_descriptionSTEEL,MIL-S-6050 COMP 8630,1.450 IN. O/A LG,0.390 IN. MIN,0.400 IN. MAX O/A W,0.240 IN. MIN,0.242 IN. MAX O/A H AFTER PLATING,ONE THRU HOLE 0.094 IN. MIN,0.097 IN. MAX DIA IN
NSN5331-00-311-9520
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 26-2399 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
•
CENTER HOLE DIAMETER: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.637 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.637 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
34-52X3-53-24B7Interchangeable
interchangeable cross-reference
interchangeable
0-1892Interchangeable
interchangeable cross-reference
interchangeable
15332860Interchangeable
interchangeable cross-reference
interchangeable
26-2399Interchangeable
interchangeable cross-reference
interchangeable
560-105Interchangeable
Same NIIN cross-reference
interchangeable
PRP568-220MILR2 5897Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 26-2399?
26-2399 is a HANDLE,CONTROL,SUMP.
What parts can replace 26-2399?
There are 8 known substitutes for 26-2399: 34-52X3-53-24B7, 0-1892, 15332860 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 26-2399?
26-2399 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-311-9520. 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