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Technical Data Sheet
PartsTable / COMPONENT / 1728B
1728B ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The CABLE ASSEMBLY,RADIO FREQUENCY is a the manufacturer cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. Key specifications include end_item_identification: KC-46 AIRCRAFT, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-279-0353, 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
1728B
NSN: 4730-00-279-0353
FSC: 4730
CAGE: 0KFM1 — ADVANCED COMPUTER TECHNOLOGY INC DBA A C T (USA)
SPECIFICATIONS
end_item_identificationKC-46 AIRCRAFT
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN4730-00-279-0353
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1728B · 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
•
SHANK LENGTH: 0.234 INCHES NOMINAL IN
•
HEIGHT: 0.516 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
SHANK DIAMETER: 0.188 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
SHANK LENGTH0.234 INCHES NOMINAL IN
HEIGHT0.516 INCHES NOMINAL IN
SPECIAL FEATURESGRUMMAN A-10 AIRCRAFT
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORSTRAIGHT
SHANK DIAMETER0.188 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
21917Interchangeable
interchangeable cross-reference
interchangeable
R21917Interchangeable
interchangeable cross-reference
interchangeable
16007Interchangeable
interchangeable cross-reference
interchangeable
C10441Interchangeable
interchangeable cross-reference
interchangeable
101603LEInterchangeable
interchangeable cross-reference
interchangeable
92645Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1728B?
1728B is a CABLE ASSEMBLY,RADIO FREQUENCY.
What parts can replace 1728B?
There are 24 known substitutes for 1728B: 21917, R21917, 16007 and 21 more. Substitute compatibility should be verified for your specific system.
Is 1728B still available?
1728B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026