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12421890-001 — 12421890-001

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

12421890-001: 12421890-001.

The 12421890-001 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-453-9651, 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
12421890-001
NSN: 4730-01-453-9651
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
Part Number12421890-001
NSN4730-01-453-9651
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12421890-001 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 FLARED SLEEVE AND 1 SHORT COUPLING NUT
•
NOMINAL OVERALL LENGTH: 52.0 MILLIMETERS MM
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
•
NOMINAL THREAD SIZE: 1.312 MILLIMETERS FIRST END MM
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD CLASS: 2A SECOND END A
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 FLARED SLEEVE AND 1 SHORT COUPLING NUT
NOMINAL OVERALL LENGTH52.0 MILLIMETERS MM
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
NOMINAL THREAD SIZE1.312 MILLIMETERS FIRST END MM
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2A SECOND END A
THREAD CLASS2A FIRST END A
END ITEM IDENTIFICATIONFAMILY OF MEDIUM TACTICAL VEHICLES-LIGHT; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
12421890Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12421890-001?
12421890-001 is a 12421890-001.
What parts can replace 12421890-001?
There is 1 known substitute for 12421890-001: 12421890. Substitute compatibility should be verified for your specific system.
What is the NSN for 12421890-001?
12421890-001 is cataloged in the U.S. Government catalog under NSN 4730-01-453-9651. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.