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Technical Data Sheet
PartsTable / COMPONENT / ST7M293-4
ST7M293-4 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, POLYETHYLENE (PP), design_type: THREADED, thread_class: 2B, inside_diameter_length: 0.240 INCHES NOMINAL IN, thread_size_and_series/type_designator: 0.438-24 UNS. 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
ST7M293-4
NSN: 5340-00-435-9188
FSC: 5340
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP)
design_typeTHREADED
thread_class2B
inside_diameter_length0.240 INCHES NOMINAL IN
thread_size_and_series/type_designator0.438-24 UNS
NSN5340-00-435-9188
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST7M293-4 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 14
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 ST7M293-4?
ST7M293-4 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace ST7M293-4?
There are 14 known substitutes for ST7M293-4: 132250497401, 6850001775094, AS8660 2.00 OZ TU and 11 more. Substitute compatibility should be verified for your specific system.
Is ST7M293-4 still available?
ST7M293-4 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