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654748 — SLEEVE,FLARED,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

654748: SLEEVE,FLARED,TUBE FITTING.

The SLEEVE,FLARED,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_length: 1.217 INCHES NOMINAL IN, seat_angle_in_deg: 45.0, casehardening_indicator: NOT CASEHARDENED, sleeve_outside_diameter: 2.203 INCHES NOMINAL IN, hose/tube_outside_diameter_for_which_designed: 2.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-159-0512, 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
654748
NSN: 4730-00-159-0512
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_length1.217 INCHES NOMINAL IN
seat_angle_in_deg45.0
casehardening_indicatorNOT CASEHARDENED
sleeve_outside_diameter2.203 INCHES NOMINAL IN
hose/tube_outside_diameter_for_which_designed2.125 INCHES NOMINAL IN
NSN4730-00-159-0512
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 654748 · 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
•
SEAT ANGLE IN DEG: 45.0
•
SLEEVE OUTSIDE DIAMETER: 2.203 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: COPPER ALLOY
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG45.0
OVERALL LENGTH1.217 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER2.203 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALCOPPER ALLOY
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.125 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
265443Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 654748?
654748 is a SLEEVE,FLARED,TUBE FITTING.
What parts can replace 654748?
There is 1 known substitute for 654748: 265443. Substitute compatibility should be verified for your specific system.
What is the NSN for 654748?
654748 is cataloged in the U.S. Government catalog under NSN 4730-00-159-0512. 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.