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MP125 ✓ 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 PORT,TEST is a the manufacturer industrial component. Key specifications include overall_height: 1.875 INCHES NOMINAL IN, pressure_rating: ERR-060, end_item_identification: 3895-01-344-5480 - LIQUID BITUMINOUS MATERIAL DISTRIBUTOR, accessory_components_and_quantity: CHAIN 1, PROTECTIVE CAP 1, O-RING SEAL 1, general_characteristics_item_description: SEAL IS VITON; PORT IS CONNECTED BY 0.125IN. MALE NPT CONNECTOR 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 5330-00-916-4304, 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
MP125
NSN: 5330-00-916-4304
FSC: 5330
CAGE: 76122 — INDUSTRIAL TECHNOLOGIES AND SERVICES LLC (USA)
SPECIFICATIONS
overall_height1.875 INCHES NOMINAL IN
pressure_ratingERR-060
special_featuresALLOWS A HAND INSERTED PROBE TO ENTER A PRESSURIZED SYSTEM AND COMMUNICATE WITH THE FLUID WITHOUT LEAKAGE; CONTAINS A SELF-SEALING, SPRING LOADED CHECK VALVE
end_item_identification3895-01-344-5480 - LIQUID BITUMINOUS MATERIAL DISTRIBUTOR
accessory_components_and_quantityCHAIN 1, PROTECTIVE CAP 1, O-RING SEAL 1
general_characteristics_item_descriptionSEAL IS VITON; PORT IS CONNECTED BY 0.125IN. MALE NPT CONNECTOR IN
NSN5330-00-916-4304
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MP125 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
21153Interchangeable
interchangeable cross-reference
interchangeable
A21153Interchangeable
interchangeable cross-reference
interchangeable
MC74153PInterchangeable
interchangeable cross-reference
interchangeable
74153N1Interchangeable
interchangeable cross-reference
interchangeable
SN74153NInterchangeable
interchangeable cross-reference
interchangeable
50208Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MP125?
MP125 is a PORT,TEST.
What parts can replace MP125?
There are 16 known substitutes for MP125: 21153, A21153, MC74153P and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MP125?
MP125 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-916-4304. 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