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Technical Data Sheet
PartsTable / COMPONENT / 21172-9500
21172-9500 ✓ 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

PARTS KIT,SEAL REPLACEMENT,MECHA. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-325-7687, 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
21172-9500
NSN: 5330-01-325-7687
FSC: 5330
CAGE: 54948 — WALTCO TRUCK EQUIPMENT CO INC (USA)
SPECIFICATIONS
component_quantity8
NSN5330-01-325-7687
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21172-9500 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
•
COMPONENT QUANTITY: 8
TECHNICAL CHARACTERISTICS (FLIS)
COMPONENT QUANTITY8
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
NT10805PC15Interchangeable
interchangeable cross-reference
interchangeable
CKB5459BInterchangeable
interchangeable cross-reference
interchangeable
R600K202Interchangeable
interchangeable cross-reference
interchangeable
284JA3Interchangeable
interchangeable cross-reference
interchangeable
284Interchangeable
interchangeable cross-reference
interchangeable
3513Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21172-9500?
21172-9500 is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What parts can replace 21172-9500?
There are 19 known substitutes for 21172-9500: NT10805PC15, CKB5459B, R600K202 and 16 more. Substitute compatibility should be verified for your specific system.
Is 21172-9500 still available?
21172-9500 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