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6405-24 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6405-24: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES NOMINAL IN, fastener_length: 1.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-409-8797, 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
6405-24
NSN: 4730-00-409-8797
NIINs: 004098797, 013771046
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 22031 — AIR-WAY MANUFACTURING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
thread_class2A A
thread_length1.000 INCHES NOMINAL IN
fastener_length1.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNRC
material_document_and_classificationASTM A193 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN4730-00-409-8797
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6405-24 · 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
•
FLOW ANGLE: 90.0 DEGREES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-81562,TYPE 2,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARED (TUBE) SECOND ENDFLARED (TUBE) SECOND END
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST ENDTHREADED INTERNAL TUBE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-81562,TYPE 2,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARED (TUBE) SECOND ENDFLARED (TUBE) SECOND END
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST ENDSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST ENDTHREADED INTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND ENDTHREADED EXTERNAL TUBE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.500 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH2.328 INCHES NOMINAL SECOND END2.328 INCHES NOMINAL SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 8
332-2004-120Reference document
Same NSN cross-reference
Reference document — Secondary reference
04650024Reference document
Same NSN cross-reference
Reference document — Secondary reference
11K12Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-18866Reference document
Same NSN cross-reference
Reference document — Identification reference
332-2004Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
MS51521B24Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6405-24?
6405-24 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 6405-24?
There are 8 known substitutes for 6405-24: 332-2004-120, 04650024, 11K12 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6405-24?
6405-24 is cataloged in the U.S. Government catalog under NSN 4730-00-409-8797. This indicates validated use in U.S. government and defense supply chains.
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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.