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PartsTable / COMPONENT / PH-234-A
PH-234-A ✓ 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: SQUARE, seal_width: 0.250 INCHES NOMINAL IN, outside_diameter: 1.379 INCHES NOMINAL IN, housing_bore_diameter: 1.375 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-290-1187, 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
PH-234-A
NSN: 5330-00-290-1187
FSC: 5330
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.250 INCHES NOMINAL IN
outside_diameter1.379 INCHES NOMINAL IN
housing_bore_diameter1.375 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.750 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-290-1187
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PH-234-A 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
•
SEALING ELEMENT STYLE: ANGULAR
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
ACCOMMODATED SHAFT DIAMETER: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
•
HOUSING BORE DIAMETER: 1.379 INCHES NOMINAL IN
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
ACCOMMODATED SHAFT DIAMETER0.750 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
HOUSING BORE DIAMETER1.379 INCHES NOMINAL IN
SEAL WIDTH0.250 INCHES NOMINAL IN
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
A31-179Interchangeable
interchangeable cross-reference
interchangeable
MB352-4AInterchangeable
interchangeable cross-reference
interchangeable
7B280Interchangeable
interchangeable cross-reference
interchangeable
40027Interchangeable
interchangeable cross-reference
interchangeable
7536Interchangeable
interchangeable cross-reference
interchangeable
10-27448Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PH-234-A?
PH-234-A is a SEAL,PLAIN ENCASED.
What parts can replace PH-234-A?
There are 7 known substitutes for PH-234-A: A31-179, MB352-4A, 7B280 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PH-234-A?
PH-234-A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-290-1187. 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