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PartsTable / COMPONENT / M17303CL1 TYB(ROTARY)/TYC 3/16SQ
M17303CL1 TYB(ROTARY)/TYC 3/16SQ ✓ 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 M17303CL1 TYB(ROTARY)/TYC 3/16SQ is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-379-0056, 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
M17303CL1 TYB(ROTARY)/TYC 3/16SQ
NSN: 5330-01-379-0056
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM17303CL1 TYB(ROTARY)/TYC 3/16SQ
NSN5330-01-379-0056
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M17303CL1 TYB(ROTARY)/TYC 3/16SQ 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
•
CROSS-SECTIONAL HEIGHT: 0.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 0.188 INCHES NOMINAL IN
•
ENVIRONMENTAL ATTRIBUTE CODE: ASBESTOS ALTERNATIVE PRODUCTS
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.188 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH0.188 INCHES NOMINAL IN
ENVIRONMENTAL ATTRIBUTE CODEASBESTOS ALTERNATIVE PRODUCTS
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
SPECIAL FEATURESNON-ASBESTOS REPLACEMENT FOR 3/16 INCH SQUARE MIL-P-17303 CLASS 1, TYPE B(ROTARY ROD SERVICE) OR TYPE C ASBESTOS PACKING IN
CROSS-SECTIONAL SHAPE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
999R0341 PIECEInterchangeable
interchangeable cross-reference
interchangeable
PALMETTO 5000 1/2SQInterchangeable
interchangeable cross-reference
interchangeable
SYM1430-1-2Interchangeable
interchangeable cross-reference
interchangeable
M17303CL1 TYB(ROTARY)/TYC 3/4SQInterchangeable
interchangeable cross-reference
interchangeable
M24790IA.750Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-24790Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M17303CL1 TYB(ROTARY)/TYC 3/16SQ?
M17303CL1 TYB(ROTARY)/TYC 3/16SQ is a M17303CL1 TYB(ROTARY)/TYC 3/16SQ.
What parts can replace M17303CL1 TYB(ROTARY)/TYC 3/16SQ?
There are 23 known substitutes for M17303CL1 TYB(ROTARY)/TYC 3/16SQ: 999R0341 PIECE, PALMETTO 5000 1/2SQ, SYM1430-1-2 and 20 more. Substitute compatibility should be verified for your specific system.
Is M17303CL1 TYB(ROTARY)/TYC 3/16SQ still available?
M17303CL1 TYB(ROTARY)/TYC 3/16SQ 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