PartsTable
Technical Data Sheet
ST48D72-3 ✓ 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 COMP 304 LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, surface_treatment: PASSIVATE, material_thickness: 0.125 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 5340-01-251-5519, 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
ST48D72-3
NSN: 5340-01-251-5519
FSC: 5340
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL COMP 304 LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
surface_treatmentPASSIVATE
material_thickness0.125 INCHES NOMINAL IN
NSN5340-01-251-5519
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST48D72-3 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
SURFACE TREATMENT: PASSIVATE
MATERIAL: STEEL COMP 304 LOCATION NOT OTHERWISE SPECIFIED
MOUNTING PAD: NOT INCLUDED
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
CUSHION: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 304 LOCATION NOT OTHERWISE SPECIFIED
MOUNTING PADNOT INCLUDED
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
NDC1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DLT-5421Interchangeable
interchangeable cross-reference
interchangeable
1-10443Interchangeable
interchangeable cross-reference
interchangeable
BAC1503-4243Interchangeable
interchangeable cross-reference
interchangeable
10443Interchangeable
interchangeable cross-reference
interchangeable
LS3231Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST48D72-3?
ST48D72-3 is a STRAP,RETAINING.
What parts can replace ST48D72-3?
There are 12 known substitutes for ST48D72-3: NDC1, MIL-DLT-5421, 1-10443 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST48D72-3?
ST48D72-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-251-5519. This indicates validated use in U.S. government and defense supply chains.
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