PartsTable
Technical Data Sheet
Download PDF

RE66F499PC3 — NUT,TUBE COUPLING,REDUCING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

RE66F499PC3: NUT,TUBE COUPLING,REDUCING.

The NUT,TUBE COUPLING,REDUCING is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, nut_style: TUBE COUPLING, nut_height: 4.000 INCHES NOMINAL IN, seat_angle: 41.00 DEGREES NOMINAL, thread_class: 1B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-3368, 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
RE66F499PC3
NSN: 4730-00-203-3368
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03958 — MINDECO CORP (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
nut_styleTUBE COUPLING
nut_height4.000 INCHES NOMINAL IN
seat_angle41.00 DEGREES NOMINAL
thread_class1B
thread_seriesUNF
thread_directionRIGHT-HAND
fabrication_methodCAST
length_to_shoulder3.125 INCHES NOMINAL IN
width_across_flats4.750 INCHES NOMINAL IN
nominal_thread_size4.000 INCHES IN
smallest_inside_diameter3.063 INCHES NOMINAL IN
NSN4730-00-203-3368
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: RE66F499PC3 · 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: 3.125 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 4.750 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
SEAT ANGLE: 41.00 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 4.000 INCHES IN
•
NUT HEIGHT: 4.000 INCHES NOMINAL IN
•
NUT STYLE: TUBE COUPLING
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER3.125 INCHES NOMINAL IN
WIDTH ACROSS FLATS4.750 INCHES NOMINAL IN
THREAD SERIESUNF
SEAT ANGLE41.00 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE4.000 INCHES IN
NUT HEIGHT4.000 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
THREAD CLASS1B
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

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
Ready to buy RE66F499PC3?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is RE66F499PC3?
RE66F499PC3 is a NUT,TUBE COUPLING,REDUCING.
What is the NSN for RE66F499PC3?
RE66F499PC3 is cataloged in the U.S. Government catalog under NSN 4730-00-203-3368. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — RE66F499PC3

✓ 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.