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3655-28D — NUT ASSEMBLY,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3655-28D: NUT ASSEMBLY,TUBE COUPLING.

The NUT ASSEMBLY,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, thread_size: 2.500-12, thread_class: 2B, overall_length: 0.844 INCHES MINIMUM AND 0.858 INCHES MAXIMUM IN, outside_diameter: 2.559 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN, style_designator: NUT ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-569-4832, 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
3655-28D
NSN: 4730-00-569-4832
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79326 — TRANSDIGM INC DIV ADELWIGGINS GROUP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
thread_size2.500-12
thread_class2B
overall_length0.844 INCHES MINIMUM AND 0.858 INCHES MAXIMUM IN
outside_diameter2.559 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN
style_designatorNUT ASSEMBLY
thread_directionRIGHT-HAND
surface_treatmentANODIZE
end_item_identificationAIRCRAFT FUEL LINE APPLICATION
working_temp_and_service_type65.0 DEG FAHRENHEIT MINIMUM JET FUEL AND 400.0 DEG FAHRENHEIT MAXIMUM JET FUEL
screw_thread_series_designatorUN
tube_outside_diameter_for_which_designed1.750 INCHES NOMINAL IN
NSN4730-00-569-4832
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3655-28D · 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
•
WORKING TEMP AND SERVICE TYPE: 65.0 DEG FAHRENHEIT MINIMUM JET FUEL AND 400.0 DEG FAHRENHEIT MAXIMUM JET FUEL
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NUT ASSEMBLY
•
OUTSIDE DIAMETER: 2.559 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SIZE: 2.500-12
•
SCREW THREAD SERIES DESIGNATOR: UN
TECHNICAL CHARACTERISTICS
WORKING TEMP AND SERVICE TYPE65.0 DEG FAHRENHEIT MINIMUM JET FUEL AND 400.0 DEG FAHRENHEIT MAXIMUM JET FUEL
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.750 INCHES NOMINAL IN
STYLE DESIGNATORNUT ASSEMBLY
OVERALL LENGTH0.844 INCHES MINIMUM AND 0.858 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.559 INCHES MINIMUM AND 2.621 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD SIZE2.500-12
SCREW THREAD SERIES DESIGNATORUN
SURFACE TREATMENTANODIZE
THREAD CLASS2B
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

No substitute or cross-reference records for this part.

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 3655-28D?
3655-28D is a NUT ASSEMBLY,TUBE COUPLING.
What is the NSN for 3655-28D?
3655-28D is cataloged in the U.S. Government catalog under NSN 4730-00-569-4832. This indicates validated use in U.S. government and defense supply chains.
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