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56251 ✓ Verified by PartsTable
Bestway · 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

Extra strenght side walls are made with 3 separate layers of material. The inner layer mesh is laminated<br>to the 2 outer heavy gauge PVC layers. This creates a total thickness of 0,40-0,80 mm (16-32 ga.)<br>depending on the size of the pool.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-4121, 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
56251
NSN: 4730-00-288-4121
FSC: 4730
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
cubic_measure5.185 CUBIC FEET
overall_width19.000 INCHES MAXIMUM IN
overall_height15.720 INCHES MAXIMUM IN
overall_length30.000 INCHES MAXIMUM IN
special_featuresHAS AIR FLOW CALIBRATION ACCESS; REMOVEABLE AIR INLET FILTER
special_markingsWARNING 230 VOLTS; TWO MAN LIFT REQUIRED
surface_treatmentPAINT
functional_descriptionUNIT PROVIDES AIR AT FOUR SPECIFIED FLOW RATES FOR COOLING LRUS INDEPENDENTLY OR JOINTLY WITH AN EXTERNAL REFRIGERATION SYSTEM PN:6012461-001
end_item_identificationF-16 R-IAIS
voltage_in_volts_and_current_type208.0 AC AND 28.0 DC
NSN4730-00-288-4121
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 56251 · Bestway ⚠ 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONACFT MODEL NO.F15
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
JHP110-224Interchangeable
interchangeable cross-reference
interchangeable
WUCAS640AInterchangeable
interchangeable cross-reference
interchangeable
K95AInterchangeable
interchangeable cross-reference
interchangeable
56251Interchangeable
interchangeable cross-reference
interchangeable
4140PL0799172Interchangeable
interchangeable cross-reference
interchangeable
6012460-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 56251?
56251 is a BEARING,BALL,ANNULAR manufactured by Bestway.
What parts can replace 56251?
There are 6 known substitutes for 56251: JHP110-224, WUCAS640A, K95A and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 56251?
56251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-4121. 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