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PartsTable / COMPONENT / 12421597-001
12421597-001 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 2.360 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL HOSE FIRST FLUID END CONNECTION, style_designator: FEMALE COUPLING HALF, surface_treatment: ZINC AND CHROMATE OVERALL, operating_pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-540-0620, 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
12421597-001
NSN: 4730-01-540-0620
FSC: 4730
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length2.360 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
style_designatorFEMALE COUPLING HALF
surface_treatmentZINC AND CHROMATE OVERALL
operating_pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES FIRST FLUID END CONNECTION IN
end_item_identification2320-01-530-3843 CARGO TRUCK
thread_quantity_per_inch18 FIRST FLUID END CONNECTION
thread_series_designatorNPT FIRST FLUID END CONNECTION
part_name_assigned_by_controlling_agencyCOUPLER
NSN4730-01-540-0620
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12421597-001 · 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
•
NOMINAL THREAD SIZE: 0.250 INCHES FIRST FLUID END CONNECTION IN
•
OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: FEMALE COUPLING HALF
•
THREAD SERIES DESIGNATOR: NPT FIRST FLUID END CONNECTION
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.250 INCHES FIRST FLUID END CONNECTION IN
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYCOUPLER
STYLE DESIGNATORFEMALE COUPLING HALF
THREAD SERIES DESIGNATORNPT FIRST FLUID END CONNECTION
SURFACE TREATMENTZINC AND CHROMATE OVERALL
END ITEM IDENTIFICATION2320-01-530-3843 CARGO TRUCK
CONNECTION TYPETHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
OVERALL LENGTH2.360 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
637539Interchangeable
interchangeable cross-reference
interchangeable
799122Interchangeable
interchangeable cross-reference
interchangeable
14CInterchangeable
interchangeable cross-reference
interchangeable
RJ6CInterchangeable
interchangeable cross-reference
interchangeable
WS506Interchangeable
interchangeable cross-reference
interchangeable
42AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12421597-001?
12421597-001 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 12421597-001?
There are 12 known substitutes for 12421597-001: 637539, 799122, 14C and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12421597-001?
12421597-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-540-0620. 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