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74A411554 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

74A411554: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56320 SINGLE END, design_form: PREBENT, thread_class: 3B SINGLE END, wall_thickness: 0.028 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTAIL, thread_direction: RIGHT-HAND SINGLE END. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-128-9387, 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
74A411554
NSN: 4710-01-128-9387
NIINs: 011289387, 013023081
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R56320 SINGLE END
design_formPREBENT
thread_class3B SINGLE END
wall_thickness0.028 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTAIL
thread_directionRIGHT-HAND SINGLE END
seat_angle_in_deg8.5 SINGLE END
mating_end_quantity1 SINGLE END
nominal_thread_size0.438 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, FLARELESS SINGLE END
tube_outside_diameter0.250 INCHES NOMINAL IN
end_item_identificationMCDONNELL AIRCRAFT F-18-DCN
NSN4710-01-128-9387
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 74A411554 · 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
•
DESIGN FORM: PREBENT
•
WALL THICKNESS: 0.028 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL: TITANIUM TUBING
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
WALL THICKNESS0.028 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
MATERIALTITANIUM TUBING
SUBSTITUTES & CROSS-REFERENCES 1
74A411554-1011Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74A411554?
74A411554 is a TUBE ASSEMBLY,METAL.
What parts can replace 74A411554?
There is 1 known substitute for 74A411554: 74A411554-1011. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A411554?
74A411554 is cataloged in the U.S. Government catalog under NSN 4710-01-128-9387. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.