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Technical Data Sheet
PartsTable / COMPONENT / 137438 P/N 1377521
137438 P/N 1377521 ✓ 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 137438 P/N 1377521 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 4720-01-429-9916, 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
137438 P/N 1377521
NSN: 4720-01-429-9916
FSC: 4720
CAGE: 30076 — HYSTER-YALE GROUP, INC. (USA)
SPECIFICATIONS
Part Number137438 P/N 1377521
NSN4720-01-429-9916
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 137438 P/N 1377521 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
137438Interchangeable
interchangeable cross-reference
interchangeable
270331Interchangeable
interchangeable cross-reference
interchangeable
270332Interchangeable
interchangeable cross-reference
interchangeable
309151Interchangeable
interchangeable cross-reference
interchangeable
247409Interchangeable
interchangeable cross-reference
interchangeable
247611Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 137438 P/N 1377521?
137438 P/N 1377521 is a 137438 P/N 1377521.
What parts can replace 137438 P/N 1377521?
There are 10 known substitutes for 137438 P/N 1377521: 137438, 270331, 270332 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 137438 P/N 1377521?
137438 P/N 1377521 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-429-9916. 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