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4NS — CABLE ASSEMBLY,POWER,ELECTRICAL

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4NS: CABLE ASSEMBLY,POWER,ELECTRICAL.

CABLE ASSEMBLY,POWER,ELECTRICAL. Key specifications include material: STEEL OVERALL, nut_style: TUBE COUPLING, nut_height: 0.720 INCHES NOMINAL IN, seat_angle: 45.00 DEGREES NOMINAL, thread_class: 2B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-016-5601, 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
4NS
NSN: 4730-00-016-5601
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleTUBE COUPLING
nut_height0.720 INCHES NOMINAL IN
seat_angle45.00 DEGREES NOMINAL
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
length_to_shoulder0.547 INCHES NOMINAL IN
width_across_flats0.562 INCHES NOMINAL IN
nominal_thread_size0.437 INCHES IN
smallest_inside_diameter0.300 INCHES NOMINAL IN
thread_quantity_per_inch20
NSN4730-00-016-5601
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4NS · 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
•
LENGTH TO SHOULDER: 0.547 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
SEAT ANGLE: 45.00 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.437 INCHES IN
•
NUT HEIGHT: 0.720 INCHES NOMINAL IN
•
NUT STYLE: TUBE COUPLING
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.547 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
THREAD SERIESUNF
SEAT ANGLE45.00 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.437 INCHES IN
NUT HEIGHT0.720 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
THREAD CLASS2B
THREAD QUANTITY PER INCH20
SUBSTITUTES & CROSS-REFERENCES 1
4BZ-SSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4NS?
4NS is a CABLE ASSEMBLY,POWER,ELECTRICAL.
What parts can replace 4NS?
There is 1 known substitute for 4NS: 4BZ-S. Substitute compatibility should be verified for your specific system.
What is the NSN for 4NS?
4NS is cataloged in the U.S. Government catalog under NSN 4730-00-016-5601. 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.