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221-5557344 — NOZZLE,OIL BURNER,PRESSURE ATOMI

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

221-5557344: NOZZLE,OIL BURNER,PRESSURE ATOMI.

NOZZLE,OIL BURNER,PRESSURE ATOMI. Key specifications include end_item_identification: FUEL BURNING EQUIPMENT UNITS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-296-5704, 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
221-5557344
NSN: 4730-01-296-5704
NIINs: 012965704, 013014566
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identificationFUEL BURNING EQUIPMENT UNITS
NSN4730-01-296-5704
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 221-5557344 · 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: GROOVED INSIDE (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 2.625 INCHES IN
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CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGROOVED INSIDE (TUBE) FIRST END
CONNECTION STYLEGROOVED INSIDE (TUBE) SECOND END
NOMINAL OVERALL LENGTH2.625 INCHES IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.502 INCHES SECOND END IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER1.002 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 221-5557344?
221-5557344 is a NOZZLE,OIL BURNER,PRESSURE ATOMI.
What is the NSN for 221-5557344?
221-5557344 is cataloged in the U.S. Government catalog under NSN 4730-01-296-5704. This indicates validated use in U.S. government and defense supply chains.
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