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Hydraulic SAE O-Ring Boss Adapters
Recommended by the NFPA for optimal leakage control in medium and high pressure hydraulic systems. The male fitting has a straight thread and O-ring. The female port has a straight thread, a machined surface (minimum spot face) and a chamfer to accept the O-ring. The seal take place by compressing the O-ring in the chamfer. The threads hold the connection mechanically.
Inch Size |
Dash Size |
Nominal Thread Size |
Male Thread OD |
Female Thread ID |
|---|---|---|---|---|
| 1/8 | -02 | 5/16-24 | 5/16" (.31) | 9/32" (.27) |
| 3/16 | -03 | 3/8-24 | 3/8" (.38) | 11/32" (.34) |
| 1/4 | -04 | 7/16-20 | 7/16" (.44) | 13/32" (.39) |
| 5/16 | -05 | 1/2-20 | 1/2" (.50) | 15/32" (.45) |
| 3/8 | -06 | 9/16-18 | 9/16" (.56) | 17/32" (.51) |
| 1/2 | -08 | 3/4-16 | 3/4" (.75) | 11/16" (.69) |
| 5/8 | -10 | 7/8-14 | 7/8" (.88) | 13/16" (.81) |
| 3/4 | -12 | 1 1/16-12 | 1 1/16" (1.06) | 1" (.98) |
| 7/8 | -14 | 1 3/16-12 | 1 3/16" (1.19) | 1 1/8" (1.10) |
| 1 | -16 | 1 5/16-12 | 1 5/16" (1.31) | 1 1/4" (1.23) |
| 1 1/4 | -20 | 1 5/8-12 | 1 5/8" (1.63) | 1 9/16 (1.54) |
| 1 1/2 | -24 | 1 7/8-12 | 1 7/8" (1.88) | 1 13/16" (1.79) |
| 2 | -32 | 2 1/2-12 | 2 1/2-12" (2.50) | 2 7/16" (2.42) |
We are an authorized distributor of Eaton Aeroquip products. Other manufacture's part numbers shown for reference.
O-Ring Boss and Port Adapters are available in our On-Line Store
| Common SAE Straight Thread O-Ring Fittings and Adapters | ||
|---|---|---|
| Image | Description | Part # / SKU |
 |
Pipe to SAE O-Ring Adapter External Pipe / SAE O-Ring Boss (internal) |
Aeroquip # 2246-x-xS Parker # x-x-FHG5-S |
 |
Straight Thread Adapter Internal Pipe Swivel (NPSM) / SAE O-Ring Boss |
Aeroquip # 2066-x-xS Parker # 0507-x-xS |
 |
Female Pipe Adapter Internal Pipe / SAE O-Ring Boss |
Aeroquip # 2216-x-xS Parker # x-x-F50G-S |
 |
45°
Straight Thread Adapter Internal Pipe Swivel (NPSM) / SAE O-Ring Boss (adj.) |
Aeroquip # 2067-x-xS Parker # 3507-x-xS |
 |
90°
Straight Thread Adapter Internal Pipe Swivel (NPSM) / SAE O-Ring Boss (adj.) |
Aeroquip # 2068-x-xS Parker # 2507-x-xS |
 |
90°
Straight Thread Adapter Internal Pipe / SAE O-Ring Boss (adj.) |
Aeroquip # 206801-x-xS Parker # x-x-AOEG-S |
 |
SAE O-Ring Reducer SAE O-Ring Boss / SAE O-Ring Boss (internal) |
Aeroquip # FF1010-x-xS Parker # F50G5-x-xS |
 |
O-Ring Boss Hex Head Plug |
Aeroquip # 900598-xS Parker # x-P50N-S |
 |
O-Ring Boss Hollow Hex Plug | Aeroquip # FF2138-xS Parker # x-HP50N-S |
 |
Straight Thread O-Ring Union O-Ring Boss / O-Ring Boss (adj.) |
Aeroquip # 2220-x-xS Parker # x-F50HAO-S |
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