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S54-4 ✓ 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

RECEIVER-TRANSMITTER,HYDRAULIC C. Key specifications include special_features: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-435-9188, 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
S54-4
NSN: 5340-00-435-9188
FSC: 5340
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
special_featuresMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
NSN5340-00-435-9188
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S54-4 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
•
DESIGN TYPE: THREADED
•
THREAD CLASS: 2B
•
INSIDE DIAMETER LENGTH: 0.240 INCHES NOMINAL IN
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.438-24 UNS
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPETHREADED
THREAD CLASS2B
INSIDE DIAMETER LENGTH0.240 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.438-24 UNS
MATERIALPLASTIC, POLYETHYLENE (PP)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
132250497401Interchangeable
interchangeable cross-reference
interchangeable
6850001775094Interchangeable
interchangeable cross-reference
interchangeable
AS8660 2.00 OZ TUInterchangeable
interchangeable cross-reference
interchangeable
12413Interchangeable
interchangeable cross-reference
interchangeable
DC4Interchangeable
interchangeable cross-reference
interchangeable
DC 4 COMPOUNDInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S54-4?
S54-4 is a RECEIVER-TRANSMITTER,HYDRAULIC C.
What parts can replace S54-4?
There are 15 known substitutes for S54-4: 132250497401, 6850001775094, AS8660 2.00 OZ TU and 12 more. Substitute compatibility should be verified for your specific system.
Is S54-4 still available?
S54-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026