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509-4676021 — CONTROL-DISPLAY,OPTOELECTRONIC

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

509-4676021: CONTROL-DISPLAY,OPTOELECTRONIC.

The CONTROL-DISPLAY,OPTOELECTRONIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, nominal_thread_size: 0.500 INCHES ALL ENDS IN, thread_series_designator: NPT ALL ENDS, furnished_items_and_quantity: 1 TAILPIECE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-327-5196, 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
509-4676021
NSN: 4730-01-327-5196
NIINs: 013275196, 013275197, 013275199, 013278593
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
nominal_thread_size0.500 INCHES ALL ENDS IN
thread_series_designatorNPT ALL ENDS
furnished_items_and_quantity1 TAILPIECE
NSN4730-01-327-5196
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 509-4676021 · 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 3
509-4676021 ITEM F5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4693907Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
4693907 OF26Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 509-4676021?
509-4676021 is a CONTROL-DISPLAY,OPTOELECTRONIC.
What parts can replace 509-4676021?
There are 3 known substitutes for 509-4676021: 509-4676021 ITEM F5, 4693907, 4693907 OF26. Substitute compatibility should be verified for your specific system.
What is the NSN for 509-4676021?
509-4676021 is cataloged in the U.S. Government catalog under NSN 4730-01-327-5196. 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.