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U539948 — OUTLET,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

U539948: OUTLET,BOSS.

The OUTLET,BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: A3B SECOND END, connection_type: BUTT WELD PIPE FIRST END, connection_style: BEVELED (PIPE) FIRST END, nominal_thread_size: 0.750 INCHES SECOND END IN, thread_quantity_per_inch: A16 SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-375-1382, 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
U539948
NSN: 4730-01-375-1382
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78943 — TRIUMPH THERMAL SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_classA3B SECOND END
connection_typeBUTT WELD PIPE FIRST END
connection_styleBEVELED (PIPE) FIRST END
nominal_thread_size0.750 INCHES SECOND END IN
thread_quantity_per_inchA16 SECOND END
thread_series_designatorUN SECOND END
NSN4730-01-375-1382
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: U539948 · 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: BEVELED (PIPE) FIRST END
•
CONNECTION TYPE: BUTT WELD PIPE FIRST END
•
NOMINAL THREAD SIZE: 0.750 INCHES SECOND END IN
•
THREAD CLASS: A3B SECOND END
•
THREAD QUANTITY PER INCH: A16 SECOND END
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UN SECOND END
TECHNICAL CHARACTERISTICS
CONNECTION STYLEBEVELED (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPEBUTT WELD PIPE FIRST END
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
THREAD CLASSA3B SECOND END
THREAD QUANTITY PER INCHA16 SECOND END
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUN SECOND END
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 U539948?
U539948 is a OUTLET,BOSS.
What is the NSN for U539948?
U539948 is cataloged in the U.S. Government catalog under NSN 4730-01-375-1382. 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.