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74448 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The TUBE,EXTENSION,DRAIN is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thickness: 0.985 INCHES NOMINAL IN, overall_length: 1.156 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, width_across_flats: 0.500 INCHES NOMINAL IN, nominal_thread_size: 0.375 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-448-5215, 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
74448
NSN: 4730-00-448-5215
FSC: 4730
CAGE: 4V307 — WATERWAY MFG CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thickness0.985 INCHES NOMINAL IN
overall_length1.156 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.500 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
screw_thread_length0.172 INCHES NOMINAL IN
fsc_application_dataDISTRIBUTOR TRANSMITTER TELETYPEWRITER
hole_inside_diameter0.242 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN
thread_quantity_per_inch32
thread_series_designatorUNEF
wrenching_facility_shapeHEXAGON
NSN4730-00-448-5215
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 74448 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS,CHROME PLATED,17 GAUGE MATERIAL 8.000 IN. NOMINAL LG,1.500 IN. NOMINAL TUBE SIZE,INCLUDES ONE COUPLING NUT AND ONE SYNTHETIC RUBBER WASHER ON ONE END,ONE END INTERNAL TUBE,ONE END EXTERNAL TUBE IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS,CHROME PLATED,17 GAUGE MATERIAL 8.000 IN. NOMINAL LG,1.500 IN. NOMINAL TUBE SIZE,INCLUDES ONE COUPLING NUT AND ONE SYNTHETIC RUBBER WASHER ON ONE END,ONE END INTERNAL TUBE,ONE END EXTERNAL TUBE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
7677Interchangeable
interchangeable cross-reference
interchangeable
D27ALE29AInterchangeable
interchangeable cross-reference
interchangeable
SAE-J513Interchangeable
interchangeable cross-reference
interchangeable
E3-4AInterchangeable
interchangeable cross-reference
interchangeable
SAE J513 4-2 010203BAInterchangeable
interchangeable cross-reference
interchangeable
58211-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74448?
74448 is a TUBE,EXTENSION,DRAIN.
What parts can replace 74448?
There are 16 known substitutes for 74448: 7677, D27ALE29A, SAE-J513 and 13 more. Substitute compatibility should be verified for your specific system.
Is 74448 still available?
74448 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026