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Technical Data Sheet
PartsTable / COMPONENT / 1878504
1878504 ✓ 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 STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: STEEL LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.375 INCHES NOMINAL IN, overall_length: 1.938 INCHES NOMINAL IN, surface_treatment: ZINC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-243-6446, 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
1878504
NSN: 5340-00-243-6446
FSC: 5340
CAGE: 00447 — WABCO CONSTRUCTION AND MINING EQUIPMENT GROUP INDIANAPOLIS PLANT AN AMERICAN STANDARD INC CO (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.375 INCHES NOMINAL IN
overall_length1.938 INCHES NOMINAL IN
surface_treatmentZINC
material_thickness0.023 INCHES NOMINAL IN
inside_diameter/arch_length0.219 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.234375 INCHES NOMINAL IN
NSN5340-00-243-6446
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1878504 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 THICKNESS: 0.023 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
MOUNTING PAD: NOT INCLUDED
•
INSIDE DIAMETER/ARCH LENGTH: 0.219 INCHES NOMINAL IN
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.234375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.023 INCHES NOMINAL IN
SURFACE TREATMENTZINC
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
MOUNTING PADNOT INCLUDED
OVERALL LENGTH1.938 INCHES NOMINAL IN
INSIDE DIAMETER/ARCH LENGTH0.219 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.234375 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
736336Interchangeable
interchangeable cross-reference
interchangeable
734684-5Interchangeable
interchangeable cross-reference
interchangeable
734684-4Interchangeable
interchangeable cross-reference
interchangeable
14G528Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1878504?
1878504 is a STRAP,RETAINING.
What parts can replace 1878504?
There are 4 known substitutes for 1878504: 736336, 734684-5, 734684-4 and 1 more. Substitute compatibility should be verified for your specific system.
Is 1878504 still available?
1878504 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026