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4252551 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4252551: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include current_type: DC, overall_width: 48.0 MILLIMETERS NOMINAL MM, overall_length: 102.0 MILLIMETERS NOMINAL MM, voltage_rating: 24.0 VOLTS NOMINAL INPUT, mounting_method: EXTERNAL STRAIGHT THREAD CONNECTION, actuation_method: PRESSURE SENSING ELEMENT. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-357-9311, 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
4252551
NSN: 4730-00-357-9311
NIINs: 003579311, 016550382
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
current_typeDC
overall_width48.0 MILLIMETERS NOMINAL MM
overall_length102.0 MILLIMETERS NOMINAL MM
voltage_rating24.0 VOLTS NOMINAL INPUT
mounting_methodEXTERNAL STRAIGHT THREAD CONNECTION
actuation_methodPRESSURE SENSING ELEMENT
contact_quantity3
measurement_range+0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS
end_item_identificationTRANSDUCER, PRESSURE
mounting_device_quantity1
mechanical_connection_typeEXTERNAL THREAD
electrical_connection_quantity3
NSN4730-00-357-9311
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4252551 · 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 OVERALL LENGTH: 4.250 INCHES IN
•
NOMINAL THREAD SIZE: 1.000 INCHES FIRST END IN
•
THREAD CLASS: 3B FIRST END
•
THREAD QUANTITY PER INCH: 12 FIRST END
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNS FIRST END
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH4.250 INCHES IN
NOMINAL THREAD SIZE1.000 INCHES FIRST END IN
THREAD CLASS3B FIRST END
THREAD QUANTITY PER INCH12 FIRST END
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNS FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
418423-1Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 4252551?
4252551 is a COUPLING,TUBE.
What parts can replace 4252551?
There is 1 known substitute for 4252551: 418423-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 4252551?
4252551 is cataloged in the U.S. Government catalog under NSN 4730-00-357-9311. 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.