UNEF Nipples | McMaster-Carr

Clear All

	Shape Shape


Straight	65° Elbow

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

5/16"-32

	Thread Type Thread Type	Show

UNEF

	Thread Type Thread Type	Hide

UN/UNF (SAE Straight)

	Grease Fitting Style Grease Fitting Style

	Standard

	Material Material

Steel

	For Use With For Use With

Grease

	Thread Length Thread Length

9/64"

7/32"

	Overall Height Overall Height

21/32"

51/64"

	Check Valve Type Check Valve Type

Ball

	Gender Gender

Male

	Hex Size Hex Size

3/8"

	Finish Finish

Zinc Plated

	Shank Type Shank Type

Threaded

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Pressure Maximum Pressure

10,000 psi

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant with
Exemptions

	Shank Length Shank Length

2 Products

About Grease Fitting Threads

Grease Fittings

These fittings are also known as hydraulic grease fittings.

Zinc-plated steel fittings have mild corrosion resistance.

Fittings with a check valve prevent grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.

UNF and UNEF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.

For technical drawings and 3-D models, click on a part number.

Straight with Male Threads

Straight with
Male
Threads

									Pkg.
Material	Overall Ht.	Shank Lg.	Thread Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
5/16"-32 UNEF Threads
Zinc-Plated Steel	21/32"	15/64"	9/64"	3/8"	10,000	Ball	10	0000000	00000	00000

65° Elbow with Male Threads

									Pkg.
Material	Overall Ht.	Thread Lg.	Shank Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
5/16"-32 UNEF Threads
Zinc-Plated Steel	51/64"	7/32"	7/32"	3/8"	10,000	Ball	10	0000000	000000	000000