Danfoss / Eaton Weatherhead 3329X4 Long Nipple Male 1/4-18 MPT Male 1/4-18 MPT Brass

Description & Features

This Danfoss / Eaton Weatherhead 3329X4 long nipple is constructed of brass and features Dura-Kote plating for corrosion resistance. Design provides flexibility with hundreds of styles to choose from, and delivers higher operating pressures above SAE standards.

This Eaton Aeroquip adapter is suitable for grease, refrigeration, instrumentation, and hydraulic systems. Fuel, LP and natural gas applications are available on special order. This NPTF male to NPTF male adapter has a 0.25 (1/4-18) end size for both ends and is certified to SAE, ASME, and ASA standards. Minimum working temperature is -65 degrees Fahrenheit.

SKU: 3329X4

Supplier Part Number (MPN): 3329X4

Specifications

Alternate Part Numbers
Alternate Part Number MINO-00015X05734
Application
Grease, refrigeration, instrumentation and hydraulic systems. Fuel, LP and natural gas available on special order.
Certifications
SAE|ASME|ASA
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Size 1
0.25
End Size 2
0.25
End Type 1
NPTF
End Type 2
NPTF
Features
Dura-Kote plating for superior corrosion resistance|Design flexibility with hundreds of styles to choose from|Higher operating pressures above SAE standards
ICC
Nipple Adapters
Item Type
NPTF Male to NPTF Male
Language
English
Minimum Working Temperature
-65
Net Pack Quantity Units
EA
NMFC
60
Product Material
Brass
Product Width
0.56
Sub Brand
None
Supplier Part Number
3329X4
Product Weight
0.09 lbs

Product Questions & Answers (1)

Question by: Frank A on Nov 14, 2025, 9:42 PM
Got a busted nipple fitting on a grease line and tryin to figure out if this one'll do the job as a swap-in. Both ends 1/4-18 NPTF male?
Answer by: Customer Support on Nov 16, 2025, 7:27 AM
both ends are 1/4-18 NPTF male, so if your existing fitting matches that thread spec on both sides, this long nipple should drop right in as a replacement. Brass construction with Dura-Kote plating means it holds up better than a plain brass fitting would in a corrosive environment, which matters on grease lines that see a lot of grime and moisture.