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Technical Data Sheet
PartsTable / COMPONENT / 81846156
81846156 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include end_item_identification: TRUCK TRACTOR YARD TYPE DIESEL ENGINE MODEL M878, measuring_method_and_length: 156.000 INCHES NOMINAL OVERALL 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 4720-01-371-3438, 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
81846156
NSN: 4720-01-371-3438
FSC: 4720
CAGE: 60703 — TRICO PRODUCTS CORPORATION (USA)
SPECIFICATIONS
end_item_identificationTRUCK TRACTOR YARD TYPE DIESEL ENGINE MODEL M878
measuring_method_and_length156.000 INCHES NOMINAL OVERALL IN
NSN4720-01-371-3438
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 81846156 · 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
•
MEASURING METHOD AND LENGTH: 156.000 INCHES NOMINAL OVERALL IN
TECHNICAL CHARACTERISTICS (FLIS)
MEASURING METHOD AND LENGTH156.000 INCHES NOMINAL OVERALL IN
END ITEM IDENTIFICATIONTRUCK TRACTOR YARD TYPE DIESEL ENGINE MODEL M878
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
21278Interchangeable
interchangeable cross-reference
interchangeable
91546Interchangeable
interchangeable cross-reference
interchangeable
GH1972-2Interchangeable
interchangeable cross-reference
interchangeable
40AW168Interchangeable
interchangeable cross-reference
interchangeable
846-50Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81846156?
81846156 is a RELAY,ELECTROMAGNETIC.
What parts can replace 81846156?
There are 5 known substitutes for 81846156: 21278, 91546, GH1972-2 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81846156?
81846156 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-371-3438. 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