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Technical Data Sheet
PartsTable / COMPONENT / N8358-35
N8358-35 ✓ 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: LEATHER SEALING ELEMENT, case_style: SQUARE, seal_width: 0.562 INCHES NOMINAL IN, housing_bore_diameter: 5.501 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 4.125 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 5330-00-154-8395, 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
N8358-35
NSN: 5330-00-154-8395
FSC: 5330
CAGE: 16603 — CONTROL FLOW, INC. DBA WESTECH HEAVY MACHINERY DIVISION DIV WESTECH HEAVY MACHINERY DIVISION (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width0.562 INCHES NOMINAL IN
housing_bore_diameter5.501 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter4.125 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-154-8395
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N8358-35 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: 4.125 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
MATERIAL: LEATHER SEALING ELEMENT
•
SEALING ELEMENT STYLE: ANGULAR
•
CASE STYLE: SQUARE
•
SEAL WIDTH: 0.562 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 5.501 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER4.125 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
MATERIALLEATHER SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
MATERIALSTEEL CASE
CASE STYLESQUARE
SEAL WIDTH0.562 INCHES NOMINAL IN
HOUSING BORE DIAMETER5.501 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
55038-1Interchangeable
interchangeable cross-reference
interchangeable
43321Interchangeable
interchangeable cross-reference
interchangeable
B94.19 TABLE 49Interchangeable
interchangeable cross-reference
interchangeable
45121Interchangeable
interchangeable cross-reference
interchangeable
550 38Interchangeable
interchangeable cross-reference
interchangeable
818 38Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N8358-35?
N8358-35 is a SEAL,PLAIN ENCASED.
What parts can replace N8358-35?
There are 13 known substitutes for N8358-35: 55038-1, 43321, B94.19 TABLE 49 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N8358-35?
N8358-35 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-8395. 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