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503314 — BLOCK,NOZZLE,TURBINE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

503314: BLOCK,NOZZLE,TURBINE.

The BLOCK,NOZZLE,TURBINE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL MIL-S-867 CLASS 2;THROAT DIA 0.422 IN. REAM;4 BUCKETS;THREADED END 0.719 IN.

DIA 0.688 IN. DEEP 0.500-14 NPT IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-056-1256, 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
503314
NSN: 4730-00-056-1256
NIINs: 000561256, 008550023
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00994 — COLUMBUS JACK CORPORATION DIV COLUMBUS JACK (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL MIL-S-867 CLASS 2;THROAT DIA 0.422 IN. REAM;4 BUCKETS;THREADED END 0.719 IN. DIA 0.688 IN. DEEP 0.500-14 NPT IN
NSN4730-00-056-1256
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 503314 · 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 503314?
503314 is a BLOCK,NOZZLE,TURBINE.
What is the NSN for 503314?
503314 is cataloged in the U.S. Government catalog under NSN 4730-00-056-1256. 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.