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7D0021T1612 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7D0021T1612: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: TITANIUM OVERALL, reducer_type: CONCENTRIC, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: SWAGED W/ GROOVES (TUBE) ALL ENDS, nominal_overall_length: 3.375 INCHES IN, end_item_identification: AIRCRAFT, AIRLIFTER, C-17A. A.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-417-4903, 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
7D0021T1612
NSN: 4730-01-417-4903
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialTITANIUM OVERALL
reducer_typeCONCENTRIC
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleSWAGED W/ GROOVES (TUBE) ALL ENDS
nominal_overall_length3.375 INCHES IN
end_item_identificationAIRCRAFT, AIRLIFTER, C-17A. A
nominal_outside_diameter_tube_accommodated0.750 INCHES SECOND END IN
NSN4730-01-417-4903
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7D0021T1612 · 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
•
CONNECTION STYLE: SWAGED W/ GROOVES (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 3.375 INCHES IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES SECOND END IN
•
MATERIAL: TITANIUM OVERALL
•
REDUCER TYPE: CONCENTRIC
TECHNICAL CHARACTERISTICS
CONNECTION STYLESWAGED W/ GROOVES (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH3.375 INCHES IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
END ITEM IDENTIFICATIONAIRCRAFT, AIRLIFTER, C-17A. A
MATERIALTITANIUM OVERALL
REDUCER TYPECONCENTRIC
SUBSTITUTES & CROSS-REFERENCES 1
AP10100Reference 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 7D0021T1612?
7D0021T1612 is a REDUCER,TUBE.
What parts can replace 7D0021T1612?
There is 1 known substitute for 7D0021T1612: AP10100. Substitute compatibility should be verified for your specific system.
What is the NSN for 7D0021T1612?
7D0021T1612 is cataloged in the U.S. Government catalog under NSN 4730-01-417-4903. 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.