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Technical Data Sheet
PartsTable / COMPONENT / M275161.21000
M275161.21000 ✓ 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 M275161.21000 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-903-1574, 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
M275161.21000
NSN: 4720-00-903-1574
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM275161.21000
NSN4720-00-903-1574
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: M275161.21000 · 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: 1.750 INCHES NOMINAL IN
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED COTTON CORD AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
•
INSIDE SURFACE CONDITION: SMOOTH
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
NONDEFINITIVE SPEC/STD DATA: 1-1/4 SIZE
•
VACUUM IN TORR: 50.8
•
BURST TEST PRESSURE: 500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
MATERIAL: RUBBER SYNTHETIC TUBE
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.750 INCHES NOMINAL IN
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED COTTON CORD AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
INSIDE SURFACE CONDITIONSMOOTH
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
NONDEFINITIVE SPEC/STD DATA1-1/4 SIZE
VACUUM IN TORR50.8
BURST TEST PRESSURE500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
MATERIALRUBBER SYNTHETIC TUBE
MEASURING METHOD AND LENGTH120.000 INCHES NOMINAL OVERALL IN
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
51198Interchangeable
interchangeable cross-reference
interchangeable
9N18186Interchangeable
interchangeable cross-reference
interchangeable
160920Interchangeable
interchangeable cross-reference
interchangeable
125-3788Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-27516Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-4441Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M275161.21000?
M275161.21000 is a M275161.21000.
What parts can replace M275161.21000?
There are 18 known substitutes for M275161.21000: 51198, 9N18186, 160920 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M275161.21000?
M275161.21000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-903-1574. 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