Stock photo — may not be the exact part. Verify by part number before ordering.York 021-08661-000 Nut, Hex NO.8 UNC Zinc STL A | OEM Chiller Part
Some parts ship faster than shown. Confirm the exact lead time or email the parts desk.
Not sure it's the right part? Send the model and serial — help@totalhvacparts.com or 302-219-4994.
Overview
OEM York nut, hex NO.8 UNC zinc STL A, part number 021-08661-000.
York specifies hardware grade, material and dimensions for pressure-containing joints, water boxes and panels. Using York hardware keeps torque values and corrosion resistance consistent with the original build.
Why buy from Total HVAC Parts: Genuine York OEM parts, supplied through authorized York OEM channels. Full manufacturer warranty applies. Need help confirming fit? Send us your unit's model and serial number before you order.
Shipping: Ships same or next business day. Free shipping on orders over $50; flat-rate shipping under $50. Returns follow our standard parts return policy.
Fits These Units and Series
Listed by York for the units and series below, based on the part's own description — not a complete fit list. Confirm the part number against your unit's parts list, or send us the model and serial and we'll confirm before you buy.
- YKEP Mod A
- YMC2 Mod B
- YST (all styles)
Specifications
| York part number | 021-08661-000 |
| Also searched as | 021 08661 000 / 02108661000 |
| Description | Nut, Hex NO.8 UNC Zinc STL A |
| Fits | YKEP Mod A, YMC2 Mod B, YST (all styles) |
| Dimensions | 0.10 X 0.10 X 0.10 |
| Ship weight | Not listed |
| Brand | York (Johnson Controls) |
After You Order
Order number and confirmation by email the moment you check out.
Short lead time — ships in 2 business days or less. Some parts ship faster than shown; the parts desk can confirm before you order.
Tracking number lands in your inbox the moment it leaves the building.
Check the part number on the label against your order before installing. Wrong or damaged? Tell us — we'll sort it out.
Ask the Parts Desk
Not sure this fits? Need more than what's in stock? Send the model and serial from the unit's data plate — a real person reads it and confirms before you order.
Common Questions
Is the stock number on this page real?
This part isn't on our shelf right now — it ships on a lead time (shown as a ship date in the buy box) instead of a shelf count. When we do hold shelf stock, the number you see is the live count from our own warehouse, not an estimate.
Is this a genuine York part, or aftermarket?
Genuine York OEM equipment sourced through York's authorized parts program — not an aftermarket substitute.
How do I confirm this fits my unit?
Match part number 021-08661-000 to your unit's parts diagram. If unsure, send us your model and serial number and we'll verify before you order.
What's the warranty on this part?
Warranty terms vary by manufacturer. Contact us with your order number for details specific to this part.
How fast does this ship?
This part is on a 2-business-day lead time — the buy box shows the estimated ship date. In-stock items ship the same business day on orders placed before 1pm ET, Monday–Friday. Standard ground delivers to most of the continental US in 2–5 business days. Ships via UPS/FedEx Ground, or truck freight for oversized items. Free standard shipping on US orders of $50 or more.
Does everything ship UPS or FedEx Ground?
Most orders ship UPS or FedEx Ground. A small number of large or heavy parts across the catalog ship by truck freight instead, and we reach out to arrange a delivery window before those orders leave the warehouse. Oversized items that ship by truck freight are also covered by free standard shipping on orders of $50 or more.
Not sure it's the right part? Check it against your unit or send us the model and serial — help@totalhvacparts.com or 302-219-4994.
Enter the model number from the chiller nameplate, or pick your chiller below. We check it against York's renewal-parts manuals for this part.

