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L6410346-003 — INVERTED NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

L6410346-003: INVERTED NUT,TUBE COUPLING.

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, overall_length: 0.750 INCHES NOMINAL IN, fabrication_method: BAR STOCK, MACHINED, width_across_flats: 0.375 INCHES NOMINAL IN, material_document_and_classification: MIL-S-6758, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-285-6313, 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
L6410346-003
NSN: 4730-01-285-6313
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28298 — SMITH AND SMITH AIRCRAFT CO (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
overall_length0.750 INCHES NOMINAL IN
fabrication_methodBAR STOCK, MACHINED
width_across_flats0.375 INCHES NOMINAL IN
material_document_and_classificationMIL-S-6758, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE
NSN4730-01-285-6313
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: L6410346-003 · 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
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 4130
•
FABRICATION METHOD: BAR STOCK, MACHINED
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758, COMP 4130 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.750 INCHES NOMINAL IN
MATERIALSTEEL COMP 4130
FABRICATION METHODBAR STOCK, MACHINED
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is L6410346-003?
L6410346-003 is a INVERTED NUT,TUBE COUPLING.
What is the NSN for L6410346-003?
L6410346-003 is cataloged in the U.S. Government catalog under NSN 4730-01-285-6313. 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.