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6N50-4CD — NUT,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6N50-4CD: NUT,UNION.

The NUT,UNION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HEXAGON, nut_height: 1.062 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, shoulder_width: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-113-5191, 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
6N50-4CD
NSN: 4730-01-113-5191
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 32142 — HYDRASEARCH COMPANY, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height1.062 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
shoulder_width0.312 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats2.250 INCHES NOMINAL IN
nominal_thread_size2.000 INCHES IN
shoulder_step_width0.250 INCHES NOMINAL IN
shoulder_seat_diameter2.000 INCHES NOMINAL IN
smallest_inside_diameter1.628 INCHES NOMINAL IN
NSN4730-01-113-5191
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6N50-4CD · 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
•
WIDTH ACROSS FLATS: 2.250 INCHES NOMINAL IN
•
SHOULDER STEP WIDTH: 0.250 INCHES NOMINAL IN
•
SHOULDER WIDTH: 0.312 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.000 INCHES IN
•
NUT HEIGHT: 1.062 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.250 INCHES NOMINAL IN
SHOULDER STEP WIDTH0.250 INCHES NOMINAL IN
SHOULDER WIDTH0.312 INCHES NOMINAL IN
THREAD SERIESUN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.000 INCHES IN
NUT HEIGHT1.062 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH12
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 3
6N504SSReference document
Same NSN cross-reference
Reference document — Secondary reference
A6UN50-4-DFSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
525-599-9005Same 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 6N50-4CD?
6N50-4CD is a NUT,UNION.
What parts can replace 6N50-4CD?
There are 3 known substitutes for 6N50-4CD: 6N504SS, A6UN50-4-DF, 525-599-9005. Substitute compatibility should be verified for your specific system.
What is the NSN for 6N50-4CD?
6N50-4CD is cataloged in the U.S. Government catalog under NSN 4730-01-113-5191. 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.