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Technical Data Sheet
PartsTable / COMPONENT / LA1139-2
LA1139-2 ✓ 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 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, lug_width: 0.781 INCHES NOMINAL IN, head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, thread_length: 1.126 INCHES MINIMUM AND 1.250 INCHES MAXIMUM 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 4710-00-737-9539, 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
LA1139-2
NSN: 4710-00-737-9539
FSC: 4710
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
lug_width0.781 INCHES NOMINAL IN
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_length1.126 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
overall_length4.780 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
style_designatorLUG
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
NSN4710-00-737-9539
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: LA1139-2 · 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 20
32Z748D9Interchangeable
interchangeable cross-reference
interchangeable
488788Interchangeable
interchangeable cross-reference
interchangeable
A14Interchangeable
interchangeable cross-reference
interchangeable
R6084JVPCITEM61-12Interchangeable
interchangeable cross-reference
interchangeable
NYE1951-1-56AInterchangeable
interchangeable cross-reference
interchangeable
E3346KPC80SPRInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LA1139-2?
LA1139-2 is a TUBE ASSEMBLY.
What parts can replace LA1139-2?
There are 20 known substitutes for LA1139-2: 32Z748D9, 488788, A14 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LA1139-2?
LA1139-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-737-9539. 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