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8490034 ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 AND STEEL COMP 305 SCREW, loop_width: 0.500 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, overall_width: 0.812 INCHES NOMINAL IN, inside_diameter: 1.000 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN, special_features: ITEM HAS LOCKWIRE HOLE, style_designator: WIRE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-541-7747, 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
8490034
NSN: 4730-00-541-7747
FSC: 4730
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 304 AND STEEL COMP 305 SCREW
loop_width0.500 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
overall_width0.812 INCHES NOMINAL IN
inside_diameter1.000 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
special_featuresITEM HAS LOCKWIRE HOLE
style_designatorWIRE
surface_treatmentPASSIVATE OVERALL
material_thickness0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
fastening_device_typeHEXAGON CROSS RECESS HEAD SCREW
end_item_identificationE-NSN ISIL
nondefinitive_spec/std_dataB TYPE
specification/standard_data88044-AN737 GOVERNMENT STANDARD
NSN4730-00-541-7747
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8490034 · 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 33
AN737TW44-48Interchangeable
interchangeable cross-reference
interchangeable
HK9C24-44/48Interchangeable
interchangeable cross-reference
interchangeable
45D13-4Interchangeable
interchangeable cross-reference
interchangeable
AN73TW56-66Interchangeable
interchangeable cross-reference
interchangeable
HK9C24-56/66Interchangeable
interchangeable cross-reference
interchangeable
AN737TW-56/66Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8490034?
8490034 is a CLAMP,HOSE.
What parts can replace 8490034?
There are 33 known substitutes for 8490034: AN737TW44-48, HK9C24-44/48, 45D13-4 and 30 more. Substitute compatibility should be verified for your specific system.
Is 8490034 still available?
8490034 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