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Steel Bulkhead Locknut, 7/8-14 Thread

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Description & Features

This Eaton Aeroquip steel bulkhead locknut is designed for secure fastening in hydraulic applications. With a 7/8-14 thread, this locknut ensures a reliable connection. Dimensions include an A value of 0.36 and a B value of 1.12.

A fluid compatibility document link is available for matching this component to compatible systems and fluids.

SKU: 210212-10S

Supplier Part Number (MPN): 210212-10S

Alternate Part Numbers: C1BB80, MI-00317872, MINO-00015F64777

Specifications

A
0.36
Alternate Part Numbers
Alternate Part Number C1BB80, Alternate Part Number MI-00317872, Alternate Part Number MINO-00015F64777
B
1.12
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
Finish
None
Materials
Carbon steel
Series
210212
Supplier Part Number
210212-10S
Thread 2
7/8-14
Thread Sealant
No
Tube O.D.
0.63
Tube O.D.
0.63
Type
Flared nut
Product Weight
0.05 lbs

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Product Questions & Answers (3)

Question by: Hugh P on Nov 9, 2025, 11:54 AM
i’ve got a bulkhead fitting with 7/8-14 threads, is this the right locknut for it
Answer by: Customer Support on Nov 11, 2025, 6:09 AM
For a 7/8-14 bulkhead thread, this is the matching steel bulkhead locknut. It’s an Eaton Aeroquip spare part from the 210212 series (catalog number C1BB80), intended to secure a bulkhead-style fitting through a panel.
Question by: Clint C on Aug 2, 2025, 6:57 AM
Will this work on a Danfoss 210212 series fitting? Just want to make sure before I order.
Answer by: Customer Support on Aug 3, 2025, 12:27 PM
This bulkhead locknut is a spare part for the Danfoss / Eaton 210212 series. It should fit just fine.
Question by: Ralph P on Sep 3, 2025, 7:28 PM
does this replace the original eaton 210212 bulkhead nut, or is it just a similar fit?
Answer by: Customer Support on Sep 4, 2025, 7:30 PM
Same part, different label. The SKU 210212-10S is a genuine Danfoss/Eaton 210212 series spare part, catalog number C1BB80 from Eaton Aeroquip. If your original equipment used a 210212 series bulkhead nut, this is the direct replacement for it.