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Technical Data Sheet
PartsTable / COMPONENT / TF981-111
TF981-111 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, peripheral_diameter: 0.610 INCHES NOMINAL IN, center_hole_diameter: 0.434 INCHES NOMINAL IN, cross-sectional_height: 0.050 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-182-5791, 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
TF981-111
NSN: 5330-01-182-5791
FSC: 5330
CAGE: 07128 — TRELLEBORG SEALING SOLUTIONS EL SEGUNDO, INC. DBA TSS EL SEGUNDO (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
peripheral_diameter0.610 INCHES NOMINAL IN
center_hole_diameter0.434 INCHES NOMINAL IN
cross-sectional_height0.050 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
NSN5330-01-182-5791
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: TF981-111 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: PLASTIC OVERALL
•
CROSS-SECTIONAL HEIGHT: 0.050 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 0.610 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
CENTER HOLE DIAMETER: 0.434 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC OVERALL
CROSS-SECTIONAL HEIGHT0.050 INCHES NOMINAL IN
PERIPHERAL DIAMETER0.610 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CENTER HOLE DIAMETER0.434 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
5-8431 1/2Interchangeable
interchangeable cross-reference
interchangeable
8433Interchangeable
interchangeable cross-reference
interchangeable
58433Interchangeable
interchangeable cross-reference
interchangeable
74565Interchangeable
interchangeable cross-reference
interchangeable
4071201Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TF981-111?
TF981-111 is a RETAINER,PACKING.
What parts can replace TF981-111?
There are 5 known substitutes for TF981-111: 5-8431 1/2, 8433, 58433 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TF981-111?
TF981-111 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-182-5791. 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