Description
Solid yellow brass hex-head plug with 1″ male NPTF threads. Used to permanently cap an unused 1″ female NPTF port on a large air tank, fuel-tank service boss, oil sump bung, or any threaded body in air, fuel, lube, or coolant plumbing. Common service number 121AS-F.
Specifications
| Manufacturer | Midland Industries |
|---|---|
| Part Number | 28206S (MM-28206S) |
| Part Type | Solid Brass Hex-Head Plug |
| Thread Size | 1″ Male NPTF |
| Body Material | Solid brass |
| Style | External hex (wrench-driven) |
| Weight | 0.380 lb |
Cross References
This part replaces or is equivalent to the following part numbers:
- Anchor: 121AS-F
- Also known as: 23152X16
Applications
Used to plug an unused 1″ female NPTF port in:
- Air tank bosses, large manifold blocks, and accessory plumbing
- Fuel-tank service ports, sump dummy bosses, and oil-pan drain bungs
- Coolant header tanks and large-port instrument plumbing
- Class 6–8 trucks (Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, Western Star) and trailers
PTFE thread sealant is recommended on each NPTF connection. Verify thread size before ordering.
