PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 260ST
260ST ✓ 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: 0.750 INCHES NOMINAL IN, overall_length: 2.000 INCHES NOMINAL IN, style_designator: CURVED ARCH. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-9980, 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
260ST
NSN: 5340-00-598-9980
FSC: 5340
CAGE: 72971 — EFCOR INC
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.750 INCHES NOMINAL IN
overall_length2.000 INCHES NOMINAL IN
style_designatorCURVED ARCH
surface_treatmentZINC
material_thickness0.094 INCHES NOMINAL IN
mounting_hole_size0.250 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
inside_diameter/arch_length0.875 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.625 INCHES NOMINAL IN
center_to_center_distance_between_arch_and_mounting_hole0.813 INCHES NOMINAL IN
NSN5340-00-598-9980
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 260ST 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
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.625 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
•
SURFACE TREATMENT: ZINC
•
STYLE DESIGNATOR: CURVED ARCH
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE: 0.813 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.750 INCHES NOMINAL IN
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.625 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
OVERALL LENGTH2.000 INCHES NOMINAL IN
SURFACE TREATMENTZINC
STYLE DESIGNATORCURVED ARCH
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE0.813 INCHES NOMINAL IN
MATERIAL THICKNESS0.094 INCHES NOMINAL IN
MOUNTING HOLE SIZE0.250 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
3235595Upgraded Successor
successor cross-reference
successor
9900009030Upgraded Successor
successor cross-reference
successor
CA-1550-CMLUpgraded Successor
successor cross-reference
successor
15-50SInterchangeable
interchangeable cross-reference
interchangeable
4159Interchangeable
interchangeable cross-reference
interchangeable
JH4159Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 260ST?
260ST is a STRAP,RETAINING.
What parts can replace 260ST?
There are 16 known substitutes for 260ST: 3235595, 9900009030, CA-1550-CML and 13 more. Substitute compatibility should be verified for your specific system.
Is 260ST still available?
260ST 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