SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

Steel Adapter, 1-11-1/2 Female NPT To 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

Ask A Question

Description & Features

Part of the Eaton Aeroquip 2216 Series, this Steel Adapter, 1-11-1/2 Female NPT To 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight provides a reliable straight connection between NPT pipe threads and SAE O-ring boss ports. The male SAE straight thread O-ring boss end delivers a leak-resistant seal well suited to demanding hydraulic and fluid systems.

Constructed from steel, this adapter is rated for use across a wide range of industrial environments, including marine and military applications, chemical processing, pulp and paper facilities, food and beverage processing, and offshore drilling. The straight configuration simplifies in-line installations where thread type conversion is required without directional change.

SKU: 2216-16-16S

Supplier Part Number (MPN): 2216-16-16S

Alternate Part Numbers: C1BC74, MI-00320298, MINO-00015F65803

Specifications

A
1.91
Alternate Part Numbers
Alternate Part Number C1BC74, Alternate Part Number MI-00320298, Alternate Part Number MINO-00015F65803, Alternate Part Number MINO-00925X09650
Application
Marine/Military, Chemical Processing, Pulp and Paper Industries, Food and Beverage Processing, Off-Shore Drilling
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13553
End Gender 2
13556
End Size 1
1
End Type 1
NPTF
End Type 2
SAE ORB
Minimum Working Temperature
-40
Supplier Part Number
2216-16-16S
Thread 1
1-11-1/2
Thread 2
1-5/16-12
Thread Sealant
No
Tube I.D. 1
0.84
Product Weight
0.28 lbs

Related Documents

Similar Products

Model Number Thread 1 Thread 2 A Price Action
Steel Adapter, 3/4-14 Female NPT To 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-12-12S Female NPT To Male ORB Adapter

3/4-14

1-1/16-12

1.67

Steel Adapter, 1-11-1/2 Female NPT To 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-16-16S Female NPT To Male ORB Adapter

1-11-1/2

1-5/16-12

1.91

Steel Adapter, 1/8-27 Female NPT To 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-2-4S Female NPT To Male ORB Adapter

1/8-27

7/16-20

0.92

Steel Adapter, 1/2-14 Female NPT To 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-8-8S Female NPT To Male ORB Adapter

1/2-14

3/4-16

1.65

Steel Adapter, 1-1/4-11-1/2 Female NPT To 1-7/8-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-24-20-O Female NPT To Male ORB Adapter

1-1/4-11-1/2

1-7/8-12

2.12

Steel Adapter, 3/4-14 Female NPT To 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-12-16S Female NPT To Male ORB Adapter

3/4-14

1-5/16-12

1

Steel Adapter, 1-11-1/2 Female NPT To 1-5/8-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-16-20S Female NPT To Male ORB Adapter

1-11-1/2

1-5/8-12

1

Steel Adapter, 1-1/4-11-1/2 Female NPT To 1-5/8-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-20-20S Female NPT To Male ORB Adapter

1-1/4-11-1/2

1-5/8-12

2

Steel Adapter, 1-1/2-11-1/2 Female NPT To 1-7/8-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-24-24S Female NPT To Male ORB Adapter

1-1/2-11-1/2

1-7/8-12

2

Steel Adapter, 1/4-18 Female NPT To 1/2-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-4-5S Female NPT To Male ORB Adapter

1/4-18

1/2-20

1.2

Steel Adapter, 1/4-18 Female NPT To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-4-6S Female NPT To Male ORB Adapter

1/4-18

9/16-18

1.24

Steel Adapter, 3/8-18 Female NPT To 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-6-12S Female NPT To Male ORB Adapter

3/8-18

1-1/16-12

1.34

Steel Adapter, 3/8-18 Female NPT To 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-6-8S Female NPT To Male ORB Adapter

3/8-18

3/4-16

1.25

Steel Adapter, 1/2-14 Female NPT To 7/8-14 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-8-10S Female NPT To Male ORB Adapter

1/2-14

7/8-14

1.54

Steel Adapter, 1/2-14 Female NPT To 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2216-8-12S Female NPT To Male ORB Adapter

1/2-14

1-1/16-12

1.72

Steel Adapter, 1/4-18 Female NPT To 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-04-04-O Female NPT To Male ORB Adapter

1/4-18

7/16-20

1.16

Steel Adapter, 3/8-18 Female NPT To 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-04-06-O Female NPT To Male ORB Adapter

3/8-18

7/16-20

1.21

Steel Adapter, 1/8-27 Female NPT To 1/2-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-05-02-O Female NPT To Male ORB Adapter

1/8-27

1/2-20

0.94

Steel Adapter, 3/8-18 Female NPT To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-06-06-O Female NPT To Male ORB Adapter

3/8-18

9/16-18

1.16

Steel Adapter, 1/2-14 Female NPT To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-06-08-O Female NPT To Male ORB Adapter

1/2-14

9/16-18

1.4

Steel Adapter, 1/4-18 Female NPT To 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-08-04-O Female NPT To Male ORB Adapter

1/4-18

3/4-16

1.16

Steel Adapter, 1/4-18 Female NPT To 7/8-14 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-10-04-O Female NPT To Male ORB Adapter

1/4-18

7/8-14

0.81

Steel Adapter, 3/8-18 Female NPT To 7/8-14 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-10-06-O Female NPT To Male ORB Adapter

3/8-18

7/8-14

1.55

Steel Adapter, 1-11-1/2 Female NPT To 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-12-16-O Female NPT To Male ORB Adapter

1-11-1/2

1-1/16-12

1.91

Steel Adapter, 1/2-14 Female NPT To 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-16-08-O Female NPT To Male ORB Adapter

1/2-14

1-5/16-12

1.61

Steel Adapter, 3/4-14 Female NPT To 1-5/8-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-20-12-O Female NPT To Male ORB Adapter

3/4-14

1-5/8-12

1.19

Steel Adapter, 1-11-1/2 Female NPT To 1-7/8-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6405-24-16-O Female NPT To Male ORB Adapter

1-11-1/2

1-7/8-12

1

Product Questions & Answers (4)

Question by: Norm R on Nov 23, 2025, 11:02 AM
trying to swap a pipe fitting over to an o-ring boss port. is this the right adapter for 1 inch female npt to a 1-5/16-12 male orb?
Answer by: Customer Support on Nov 25, 2025, 8:56 AM
For that conversion, this adapter matches a 1-11-1/2 female NPTF on one end and a 1-5/16-12 male SAE O-Ring Boss straight thread on the other, in a straight configuration.
Question by: Brent G on Jan 20, 2026, 8:53 AM
Will this adapter work to connect a female NPT pipe to a SAE O-ring boss?
Answer by: Customer Support on Jan 21, 2026, 5:44 PM
Yes, this Eaton Aeroquip 2216 series adapter is designed to connect a 1-11-1/2 female NPT pipe thread to a 1-5/16-12 male SAE O-ring boss connection.
Question by: Neal M on Mar 13, 2026, 9:04 AM
got a port that’s 1-11-1/2 female npt, and the hose end is 1-5/16-12 sae oring boss. is this the straight adapter that ties those two together
Answer by: Customer Support on Mar 15, 2026, 6:48 AM
For joining those two thread styles, this part is a straight 2216 Series adapter with a 1-11-1/2 female NPT end on one side and a 1-5/16-12 male SAE O-Ring Boss (straight thread O-ring) end on the other.
Question by: Daryl P on Mar 20, 2026, 9:58 AM
what industries is this adapter actually used in? asking cause we run a few different use and trying to figure out if its the right fit
Answer by: Customer Support on Mar 21, 2026, 12:13 PM
Pulp and paper, food and beverage processing, chemical processing, marine and military, and offshore drilling are all listed applications for this adapter. It covers a pretty wide range of demanding environments, so if your operation falls into any of those categories, you're likely in good company with this part.