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504203 — PUMP UNIT,CENTRIFUGAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

504203: PUMP UNIT,CENTRIFUGAL.

The PUMP UNIT,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include phase: SINGLE, material: PLASTIC PUMP BASIC, total_head: 22.000 FEET FT, current_type: AC, cooling_method: WATER-AIR COOLED, inclosure_type: FULLY INCLOSED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-050-4203, 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
504203
NSN: 4730-00-050-4203
NIINs: 000504203, 001720010, 013023514
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
phaseSINGLE
materialPLASTIC PUMP BASIC
total_head22.000 FEET FT
current_typeAC
pump_quantity1
cooling_methodWATER-AIR COOLED
inclosure_typeFULLY INCLOSED
stage_quantity1
prime_mover_typeELECTRIC MOTOR
special_features6.0 FT CORD W/3-PRONG MOLDED PLUG; ALUMINUM MOTOR HOUSING; UL LISTED FT
voltage_in_volts115.0
features_providedSELF-PRIMING
NSN4730-00-050-4203
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 504203 · 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
SUBSTITUTES & CROSS-REFERENCES 10
122-660345 PC 30Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
200954Reference document
Same NSN cross-reference
Reference document — Secondary reference
122-5277738 ITEM 33Reference document
Same NSN cross-reference
Reference document — Secondary reference
1641BReference document
Same NSN cross-reference
Reference document — Secondary reference
AB1303-215Reference document
Same NSN cross-reference
Reference document — Secondary reference
87907S8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 504203?
504203 is a PUMP UNIT,CENTRIFUGAL.
What parts can replace 504203?
There are 10 known substitutes for 504203: 122-660345 PC 30, 200954, 122-5277738 ITEM 33 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 504203?
504203 is cataloged in the U.S. Government catalog under NSN 4730-00-050-4203. 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.