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821331-1 — TUBE AND FITTINGS,METALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

821331-1: TUBE AND FITTINGS,METALLIC.

The TUBE AND FITTINGS,METALLIC is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY TUBING, design_form: PREBENT, overall_length: 28.194 INCHES NOMINAL IN, wall_thickness: 0.035 INCHES NOMINAL IN, special_features: TUBE,OBOGS,2 SLEEVES,AND 2 NUTS AN818-10D, mating_end_quantity: 2 SINGLE END. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-475-3044, 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
821331-1
NSN: 4710-01-475-3044
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY TUBING
design_formPREBENT
overall_length28.194 INCHES NOMINAL IN
wall_thickness0.035 INCHES NOMINAL IN
special_featuresTUBE,OBOGS,2 SLEEVES,AND 2 NUTS AN818-10D
mating_end_quantity2 SINGLE END
tube_outside_diameter0.625 INCHES NOMINAL IN
end_connection_spec/stdMS20819-10D;AS5176-10
end_item_identificationVARIOUS NAVAL APPLICATIONS
NSN4710-01-475-3044
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 821331-1 · 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
•
MATING END QUANTITY: 2 SINGLE END
•
WALL THICKNESS: 0.035 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY TUBING
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
MATING END QUANTITY2 SINGLE END
OVERALL LENGTH28.194 INCHES NOMINAL IN
WALL THICKNESS0.035 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
SPECIAL FEATURESTUBE,OBOGS,2 SLEEVES,AND 2 NUTS AN818-10D
END ITEM IDENTIFICATIONVARIOUS NAVAL APPLICATIONS
MATERIALALUMINUM ALLOY TUBING
END CONNECTION SPEC/STDMS20819-10D;AS5176-10
SUBSTITUTES & CROSS-REFERENCES 1
821331Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 821331-1?
821331-1 is a TUBE AND FITTINGS,METALLIC.
What parts can replace 821331-1?
There is 1 known substitute for 821331-1: 821331. Substitute compatibility should be verified for your specific system.
What is the NSN for 821331-1?
821331-1 is cataloged in the U.S. Government catalog under NSN 4710-01-475-3044. 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.