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Technical Data Sheet
PartsTable / COMPONENT / ST49D5
ST49D5 ✓ 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 HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, leg_length: 0.890 INCHES NOMINAL THIRD END IN, overall_length: 1.540 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL PIPE FIRST END, inside_diameter: 0.250 INCHES NOMINAL IN, connection_style: PLAIN (PIPE) ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-930-6690, 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
ST49D5
NSN: 4730-00-930-6690
FSC: 4730
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
leg_length0.890 INCHES NOMINAL THIRD END IN
overall_length1.540 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL PIPE FIRST END
inside_diameter0.250 INCHES NOMINAL IN
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorMALE COUPLING HALF
thread_directionRIGHT-HAND FIRST END
features_providedSAFETY LOCKING FEATURE
surface_treatmentCADMIUM BODY
nominal_thread_size0.375 INCHES ALL ENDS IN
inside_surface_conditionSMOOTH
NSN4730-00-930-6690
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST49D5 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
9796Interchangeable
interchangeable cross-reference
interchangeable
ST49D5-7Interchangeable
interchangeable cross-reference
interchangeable
25919Interchangeable
interchangeable cross-reference
interchangeable
ST49D5Interchangeable
interchangeable cross-reference
interchangeable
9758Interchangeable
interchangeable cross-reference
interchangeable
ST49D5-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST49D5?
ST49D5 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace ST49D5?
There are 16 known substitutes for ST49D5: 9796, ST49D5-7, 25919 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST49D5?
ST49D5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-930-6690. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026