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30118393 ✓ 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 design_type: FRICTION, special_features: BRIGHT ORANGE, LIGHTWEIGHT, CHEMICAL RESISTANT, end_item_identification: MAST FACILITIES, MISCELLANEOUS PARTS, part_name_assigned_by_controlling_agency: CAP, SAFETY, opening_inside_diameter_for_which_designed: 0.375 INCHES MINIMUM AND 1.000 INCHES MAXIMUM 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 5340-01-543-7053, 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
30118393
NSN: 5340-01-543-7053
FSC: 5340
CAGE: 01786 — AMERICAN ALLSAFE CO INC SUB OF NCH CORP (USA)
SPECIFICATIONS
design_typeFRICTION
special_featuresBRIGHT ORANGE, LIGHTWEIGHT, CHEMICAL RESISTANT
end_item_identificationMAST FACILITIES, MISCELLANEOUS PARTS
part_name_assigned_by_controlling_agencyCAP, SAFETY
opening_inside_diameter_for_which_designed0.375 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
NSN5340-01-543-7053
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 30118393 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
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
•
DESIGN TYPE: FRICTION
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESBRIGHT ORANGE, LIGHTWEIGHT, CHEMICAL RESISTANT
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP, SAFETY
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
DESIGN TYPEFRICTION
END ITEM IDENTIFICATIONMAST FACILITIES, MISCELLANEOUS PARTS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
16276Interchangeable
interchangeable cross-reference
interchangeable
M278Interchangeable
interchangeable cross-reference
interchangeable
23709CHANGEBInterchangeable
interchangeable cross-reference
interchangeable
23709Interchangeable
interchangeable cross-reference
interchangeable
927059-1DInterchangeable
interchangeable cross-reference
interchangeable
PYO-T295Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30118393?
30118393 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 30118393?
There are 8 known substitutes for 30118393: 16276, M278, 23709CHANGEB and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30118393?
30118393 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-543-7053. 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