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Technical Data Sheet
PartsTable / COMPONENT / 21158-0354
21158-0354 ✓ 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 color: BLACK, material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.281 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF, hardness_rating: 80.0 SHORE DUROMETER A NOMINAL OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-568-7617, 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
21158-0354
NSN: 5330-00-568-7617
FSC: 5330
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
colorBLACK
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.281 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
hardness_rating80.0 SHORE DUROMETER A NOMINAL OVERALL
housing_bore_diameter1.379 INCHES NOMINAL IN
sealing_element_styleANGULAR
maximum_pressure_rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
accommodated_shaft_diameter0.656 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-568-7617
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21158-0354 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
•
TEMP RATING: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
•
ACCOMMODATED SHAFT DIAMETER: 0.656 INCHES NOMINAL IN
•
HARDNESS RATING: 80.0 SHORE DUROMETER A NOMINAL OVERALL
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
COLOR: BLACK
•
SEAL WIDTH: 0.281 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
•
MAXIMUM PRESSURE RATING: 7.0 POUNDS PER SQUARE INCH (PSI) LBS
•
HOUSING BORE DIAMETER: 1.379 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT DIAMETER0.656 INCHES NOMINAL IN
HARDNESS RATING80.0 SHORE DUROMETER A NOMINAL OVERALL
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
COLORBLACK
SEAL WIDTH0.281 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
MAXIMUM PRESSURE RATING7.0 POUNDS PER SQUARE INCH (PSI) LBS
HOUSING BORE DIAMETER1.379 INCHES NOMINAL IN
CASE STYLESQUARE
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
G101Interchangeable
interchangeable cross-reference
interchangeable
P15A612Interchangeable
interchangeable cross-reference
interchangeable
30822Interchangeable
interchangeable cross-reference
interchangeable
20090Interchangeable
interchangeable cross-reference
interchangeable
25627Interchangeable
interchangeable cross-reference
interchangeable
G50Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21158-0354?
21158-0354 is a SEAL,PLAIN ENCASED.
What parts can replace 21158-0354?
There are 19 known substitutes for 21158-0354: G101, P15A612, 30822 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21158-0354?
21158-0354 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-568-7617. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026