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PartsTable / COMPONENT / 3G1987
3G1987 ✓ 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 TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include depth: 2.000 INCHES NOMINAL IN, width: 4.500 INCHES NOMINAL IN, filter: NOT INCLUDED, length: 4.500 INCHES NOMINAL IN, material: COPPER OVERALL, body_style: STRAIGHT THRU. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-181-1058, 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
3G1987
NSN: 4710-01-181-1058
FSC: 4710
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
depth2.000 INCHES NOMINAL IN
width4.500 INCHES NOMINAL IN
filterNOT INCLUDED
length4.500 INCHES NOMINAL IN
materialCOPPER OVERALL
body_styleSTRAIGHT THRU
temp_rating-40.0 FAHRENHEIT MINIMUM AND 200.0 FAHRENHEIT MAXIMUM DEGF
constructionONE-PIECE
conductor_formSTRANDED LOCATION NOT OTHERWISE SPECIFIED
nominal_length1.790 INCHES ALL ENDS IN
regulation_typeAUTOMATIC SINGLE STAGE
outside_diameter1.859 INCHES NOMINAL IN
NSN4710-01-181-1058
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 3G1987 · 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
AP9PInterchangeable
interchangeable cross-reference
interchangeable
30233Interchangeable
interchangeable cross-reference
interchangeable
AN749-1-9Interchangeable
interchangeable cross-reference
interchangeable
SK884Interchangeable
interchangeable cross-reference
interchangeable
H60MLQ30233Interchangeable
interchangeable cross-reference
interchangeable
BB61S49-04PC233Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3G1987?
3G1987 is a TUBE ASSEMBLY,METAL.
What parts can replace 3G1987?
There are 10 known substitutes for 3G1987: AP9P, 30233, AN749-1-9 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3G1987?
3G1987 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-181-1058. 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