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Technical Data Sheet
PartsTable / COMPONENT / 9998-0809
9998-0809 ✓ 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,SYNCHRO is a the manufacturer industrial component. Key specifications include width: 0.390 INCHES NOMINAL IN, height: 0.166 INCHES NOMINAL IN, length: 0.320 INCHES NOMINAL IN, material: STEEL, thread_class: 2B, effective_height: 0.010 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-710-3784, 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
9998-0809
NSN: 5340-00-710-3784
FSC: 5340
CAGE: 50027 — UNDERSEA SENSOR SYSTEMS INC DIV ULTRA SONOBUOY SYSTEMS (USA)
SPECIFICATIONS
width0.390 INCHES NOMINAL IN
height0.166 INCHES NOMINAL IN
length0.320 INCHES NOMINAL IN
materialSTEEL
thread_class2B
effective_height0.010 INCHES NOMINAL IN
outside_diameter0.250 INCHES NOMINAL IN
style_designatorCLEAT
nominal_thread_size0.112 INCHES IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
distance_from_hole_center_to_end0.125 INCHES NOMINAL IN
NSN5340-00-710-3784
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9998-0809 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: STEEL
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
STYLE DESIGNATOR: CLEAT
•
OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
EFFECTIVE HEIGHT: 0.010 INCHES NOMINAL IN
•
LENGTH: 0.320 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
HEIGHT: 0.166 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
NOMINAL THREAD SIZE0.112 INCHES IN
STYLE DESIGNATORCLEAT
OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
EFFECTIVE HEIGHT0.010 INCHES NOMINAL IN
LENGTH0.320 INCHES NOMINAL IN
THREAD CLASS2B
HEIGHT0.166 INCHES NOMINAL IN
WIDTH0.390 INCHES NOMINAL IN
DISTANCE FROM HOLE CENTER TO END0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
24254Upgraded Successor
successor cross-reference
successor
800028Interchangeable
interchangeable cross-reference
interchangeable
DM15-102JInterchangeable
interchangeable cross-reference
interchangeable
14125AInterchangeable
interchangeable cross-reference
interchangeable
BT14125AInterchangeable
interchangeable cross-reference
interchangeable
5837Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9998-0809?
9998-0809 is a CLAMP,SYNCHRO.
What parts can replace 9998-0809?
There are 29 known substitutes for 9998-0809: 24254, 800028, DM15-102J and 26 more. Substitute compatibility should be verified for your specific system.
Is 9998-0809 still available?
9998-0809 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