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PartsTable / COMPONENT / 1-03089D05
1-03089D05 ✓ 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 NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 0.672 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, special_features: GRUMMAN A-10 AIRCRAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-336-5188, 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
1-03089D05
NSN: 4730-01-336-5188
FSC: 4730
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height0.672 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
special_featuresGRUMMAN A-10 AIRCRAFT
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
length_to_shoulder0.579 INCHES NOMINAL IN
width_across_flats0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
smallest_inside_diameter0.374 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
NSN4730-01-336-5188
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1-03089D05 · 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 4
AS4841Interchangeable
interchangeable cross-reference
interchangeable
AN818-5DInterchangeable
interchangeable cross-reference
interchangeable
290-5DInterchangeable
interchangeable cross-reference
interchangeable
1158-5DInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-03089D05?
1-03089D05 is a NUT,TUBE COUPLING.
What parts can replace 1-03089D05?
There are 4 known substitutes for 1-03089D05: AS4841, AN818-5D, 290-5D and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1-03089D05?
1-03089D05 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-336-5188. 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