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75D271001-2021 — CAP,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

75D271001-2021: CAP,TUBE.

The CAP,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, style_designator: CAP, TUBE COUPLING, GASKET SEAL, surface_treatment: PASSIVATE OVERALL, material_document_and_classification: ASTMA582 CL 303 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL, tube_outside_diameter_for_which_designed: 2.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-445-3918, 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
75D271001-2021
NSN: 4730-01-445-3918
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
style_designatorCAP, TUBE COUPLING, GASKET SEAL
surface_treatmentPASSIVATE OVERALL
material_document_and_classificationASTMA582 CL 303 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
tube_outside_diameter_for_which_designed2.500 INCHES NOMINAL IN
NSN4730-01-445-3918
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 75D271001-2021 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CAP, TUBE COUPLING, GASKET SEAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA582 CL 303 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.500 INCHES NOMINAL IN
STYLE DESIGNATORCAP, TUBE COUPLING, GASKET SEAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA582 CL 303 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 303 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
75D271001Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 75D271001-2021?
75D271001-2021 is a CAP,TUBE.
What parts can replace 75D271001-2021?
There is 1 known substitute for 75D271001-2021: 75D271001. Substitute compatibility should be verified for your specific system.
What is the NSN for 75D271001-2021?
75D271001-2021 is cataloged in the U.S. Government catalog under NSN 4730-01-445-3918. 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.