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Technical Data Sheet
PartsTable / COMPONENT / MS521301B225R
MS521301B225R ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM TUBE, temp_rating: -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 3.000 INCHES NOMINAL IN, outside_diameter: 3.172 INCHES MINIMUM AND 3.219 INCHES MAXIMUM IN, burst_test_pressure: 75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS, inside_surface_condition: SMOOTH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-189-2789, 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
MS521301B225R
NSN: 4720-00-189-2789
FSC: 4720
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM TUBE
temp_rating-40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter3.000 INCHES NOMINAL IN
outside_diameter3.172 INCHES MINIMUM AND 3.219 INCHES MAXIMUM IN
burst_test_pressure75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
specification/standard_data81343 SAE J20 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
layer_composition_and_location1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
outer_covering_environmental_protectionHEAT RESISTANT AND OIL RESISTANT AND OZONE RESISTANT AND MILDEW RESISTANT
NSN4720-00-189-2789
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: MS521301B225R · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 3.172 INCHES MINIMUM AND 3.219 INCHES MAXIMUM IN
•
BURST TEST PRESSURE: 75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
SPECIFICATION/STANDARD DATA: 81343 SAE J20 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
•
OUTER COVERING ENVIRONMENTAL PROTECTION: HEAT RESISTANT AND OIL RESISTANT AND OZONE RESISTANT AND MILDEW RESISTANT
•
TEMP RATING: -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
INSIDE SURFACE CONDITION: SMOOTH
•
INSIDE DIAMETER: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER3.172 INCHES MINIMUM AND 3.219 INCHES MAXIMUM IN
BURST TEST PRESSURE75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
SPECIFICATION/STANDARD DATA81343 SAE J20 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
OUTER COVERING ENVIRONMENTAL PROTECTIONHEAT RESISTANT AND OIL RESISTANT AND OZONE RESISTANT AND MILDEW RESISTANT
TEMP RATING-40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF
INSIDE SURFACE CONDITIONSMOOTH
INSIDE DIAMETER3.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM TUBE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
A100-662-3Interchangeable
interchangeable cross-reference
interchangeable
8341-1Interchangeable
interchangeable cross-reference
interchangeable
41-207-1Interchangeable
interchangeable cross-reference
interchangeable
35408Interchangeable
interchangeable cross-reference
interchangeable
6623Interchangeable
interchangeable cross-reference
interchangeable
64A98C481-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS521301B225R?
MS521301B225R is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace MS521301B225R?
There are 15 known substitutes for MS521301B225R: A100-662-3, 8341-1, 41-207-1 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS521301B225R?
MS521301B225R is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-189-2789. 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