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4-0750EA — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4-0750EA: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC VINYL, design_type: FRICTION, special_features: YELLOW, round_cap_outside_surface_condition: SMOOTH, opening_inside_diameter_for_which_designed: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-467-0781, 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
4-0750EA
NSN: 5340-01-467-0781
FSC: 5340 — Hardware, Commercial
CAGE: 25205 — MOLDED DEVICES, INC. DBA MDI DIV MOLDED DEVICES (USA)
SPECIFICATIONS
materialPLASTIC VINYL
design_typeFRICTION
special_featuresYELLOW
round_cap_outside_surface_conditionSMOOTH
opening_inside_diameter_for_which_designed0.250 INCHES NOMINAL IN
NSN5340-01-467-0781
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4-0750EA 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: FRICTION
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.250 INCHES NOMINAL IN
•
MATERIAL: PLASTIC VINYL
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.250 INCHES NOMINAL IN
SPECIAL FEATURESYELLOW
MATERIALPLASTIC VINYL
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
SUBSTITUTES & CROSS-REFERENCES 3
GC560BGReference document
Same NSN cross-reference
Reference document — Secondary reference
4-0750Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SC.250"250-BT12-YELLOWReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4-0750EA?
4-0750EA is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 4-0750EA?
There are 3 known substitutes for 4-0750EA: GC560BG, 4-0750, SC.250"250-BT12-YELLOW. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-0750EA?
4-0750EA is cataloged in the U.S. Government catalog under NSN 5340-01-467-0781. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.