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Technical Data Sheet
21168-1203 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: RECESSED, housing_bore_diameter: 3.000 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 2.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-071-2256, 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
21168-1203
NSN: 5330-00-071-2256
FSC: 5330
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
housing_bore_diameter3.000 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.000 INCHES NOMINAL IN
NSN5330-00-071-2256
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21168-1203 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
ACCOMMODATED SHAFT DIAMETER: 2.000 INCHES NOMINAL IN
CASE STYLE: RECESSED
SEALING ELEMENT STYLE: ANGULAR
HOUSING BORE DIAMETER: 3.000 INCHES NOMINAL IN
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER2.000 INCHES NOMINAL IN
CASE STYLERECESSED
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER3.000 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
191139Interchangeable
interchangeable cross-reference
interchangeable
S372-1004P1Interchangeable
interchangeable cross-reference
interchangeable
19175CAInterchangeable
interchangeable cross-reference
interchangeable
8486867Interchangeable
interchangeable cross-reference
interchangeable
21364-1203Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21168-1203?
21168-1203 is a SEAL,PLAIN ENCASED.
What parts can replace 21168-1203?
There are 5 known substitutes for 21168-1203: 191139, S372-1004P1, 19175CA and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21168-1203?
21168-1203 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-071-2256. This indicates validated use in U.S. government and defense supply chains.
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