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M38404-1-2-B — COUPLING,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

M38404-1-2-B: COUPLING,HOSE.

The COUPLING,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, connection_type: THREADED INTERNAL HOSE ALL ENDS, connection_style: SWIVEL NUT, GASKET SEAL (HOSE) ALL ENDS, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.500 INCHES ALL ENDS IN, end_item_identification: SEAWOLF CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-423-8771, 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
M38404-1-2-B
NSN: 4730-01-423-8771
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
connection_typeTHREADED INTERNAL HOSE ALL ENDS
connection_styleSWIVEL NUT, GASKET SEAL (HOSE) ALL ENDS
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.500 INCHES ALL ENDS IN
end_item_identificationSEAWOLF CLASS SSN
thread_series_designatorNPSH ALL ENDS
nondefinitive_spec/std_data1 TABLE
specification/standard_data81349-MIL-C-38404 GOVERNMENT SPECIFICATION
NSN4730-01-423-8771
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M38404-1-2-B · 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
•
CONNECTION STYLE: SWIVEL NUT, GASKET SEAL (HOSE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL HOSE ALL ENDS
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-C-38404 GOVERNMENT SPECIFICATION
•
NONDEFINITIVE SPEC/STD DATA: 1 TABLE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLESWIVEL NUT, GASKET SEAL (HOSE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL HOSE ALL ENDS
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81349-MIL-C-38404 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA1 TABLE
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORNPSH ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 5
MIL-C-38404Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS3840401IIBReference document
Same NSN cross-reference
Reference document — Secondary reference
AS38404Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS38404Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
M38404-1-II-BReference document
Same NSN cross-reference
Reference document — Secondary reference
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 M38404-1-2-B?
M38404-1-2-B is a COUPLING,HOSE.
What parts can replace M38404-1-2-B?
There are 5 known substitutes for M38404-1-2-B: MIL-C-38404, AS3840401IIB, AS38404 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M38404-1-2-B?
M38404-1-2-B is cataloged in the U.S. Government catalog under NSN 4730-01-423-8771. 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.