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Technical Data Sheet
RB15256-9 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM, design_type: THREADED, thread_class: 3B, overall_diameter: 1.069 INCHES NOMINAL IN, surface_treatment: ANODIZE, inside_diameter_length: 0.656 INCHES NOMINAL 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 5340-00-603-0664, 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
RB15256-9
NSN: 5340-00-603-0664
FSC: 5340
CAGE: 51663 — HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC (USA)
SPECIFICATIONS
materialALUMINUM
design_typeTHREADED
thread_class3B
overall_diameter1.069 INCHES NOMINAL IN
surface_treatmentANODIZE
inside_diameter_length0.656 INCHES NOMINAL IN
round_cap_outside_surface_conditionKNURLED
thread_size_and_series/type_designator1-1/16-12 UNF
NSN5340-00-603-0664
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RB15256-9 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
MATERIAL: ALUMINUM
INSIDE DIAMETER LENGTH: 0.656 INCHES NOMINAL IN
THREAD CLASS: 3B
OVERALL DIAMETER: 1.069 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1-1/16-12 UNF
SURFACE TREATMENT: ANODIZE
DESIGN TYPE: THREADED
ROUND CAP OUTSIDE SURFACE CONDITION: KNURLED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM
INSIDE DIAMETER LENGTH0.656 INCHES NOMINAL IN
THREAD CLASS3B
OVERALL DIAMETER1.069 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR1-1/16-12 UNF
SURFACE TREATMENTANODIZE
DESIGN TYPETHREADED
ROUND CAP OUTSIDE SURFACE CONDITIONKNURLED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
409756-4Upgraded Successor
successor cross-reference
successor
7200418P4Upgraded Successor
successor cross-reference
successor
9195432Upgraded Successor
successor cross-reference
successor
XM-79660-65-1000-W-LInterchangeable
interchangeable cross-reference
interchangeable
116970Interchangeable
interchangeable cross-reference
interchangeable
116470Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RB15256-9?
RB15256-9 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace RB15256-9?
There are 8 known substitutes for RB15256-9: 409756-4, 7200418P4, 9195432 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RB15256-9?
RB15256-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-603-0664. This indicates validated use in U.S. government and defense supply chains.
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