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PartsTable / COMPONENT / S280D9
S280D9 ✓ 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 CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN, material: PLASTIC TETRAFLUOROETHYLENE CUSHION, overall_width: 0.375 INCHES NOMINAL IN, style_designator: OFFSET MOUNT, tongue_hole_type: ROUND, UNTHREADED, surface_treatment: ANODIZE BAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-838-6149, 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
S280D9
NSN: 5340-00-838-6149
FSC: 5340
CAGE: 18076 — UMPCO, INC. DBA UMPCO INC (USA)
SPECIFICATIONS
diameter0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN
materialPLASTIC TETRAFLUOROETHYLENE CUSHION
overall_width0.375 INCHES NOMINAL IN
style_designatorOFFSET MOUNT
tongue_hole_typeROUND, UNTHREADED
surface_treatmentANODIZE BAND
material_thickness0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
loop_inside_diameter0.562 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end0.811 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.623 INCHES NOMINAL IN
NSN5340-00-838-6149
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S280D9 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 TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.623 INCHES NOMINAL IN
•
MATERIAL: PLASTIC TETRAFLUOROETHYLENE CUSHION
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
STYLE DESIGNATOR: OFFSET MOUNT
•
SURFACE TREATMENT: ANODIZE BAND
•
LOOP INSIDE DIAMETER: 0.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.623 INCHES NOMINAL IN
MATERIALPLASTIC TETRAFLUOROETHYLENE CUSHION
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5,T4 FED SPEC SINGLE MATERIAL RESPONSE BAND
STYLE DESIGNATOROFFSET MOUNT
SURFACE TREATMENTANODIZE BAND
MATERIALALUMINUM ALLOY 2024 BAND
LOOP INSIDE DIAMETER0.562 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
DIAMETER0.201 INCHES MINIMUM AND 0.209 INCHES MAXIMUM IN
TONGUE HOLE TYPEROUND, UNTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4779Interchangeable
interchangeable cross-reference
interchangeable
2343B054Interchangeable
interchangeable cross-reference
interchangeable
90J47RInterchangeable
interchangeable cross-reference
interchangeable
S316H640CInterchangeable
interchangeable cross-reference
interchangeable
2-631615-03Interchangeable
interchangeable cross-reference
interchangeable
28850AXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S280D9?
S280D9 is a CLAMP,LOOP.
What parts can replace S280D9?
There are 17 known substitutes for S280D9: 4779, 2343B054, 90J47R and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S280D9?
S280D9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-838-6149. 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