How to Read the Adapters
PART NO.: XXX-XX-XX
Union adaper is composed by three part: adapter type, denoted by XXX; first and second end size, denoted by XX.
Adapter type is composed by one number and two letters. Please see below chart for identification part no.
When an adapter has same end type, e.g, M JIC x M JIC, we only use one letter instead of two. e.g 1J - correct, 1JJ-wrong.
When an adapter's both end have same size, e.g 1/2" M JIC x 1/2" M NPT, we only put one size. e.g 1JN-08 - correct, 1JN-08-08 - wrong.
First Number of Part NO.
| No | Meaning | No | Meaning |
| 1 | M x M | 6 | Bulkhead |
| 2 | M x F Swivel | 7 | F Fixed x F Fixed |
| 3 | F Swivel x F Swivel | 8 | Lock Nut |
| 4 | M Plug | 9 | F PLug |
| 5 | M x F Fixed | FL/FS | Code 61 Split Flange/Code 62 Split Flange |
Second and Third Letters of Part NO.
| No | Meaning | No | Meaning |
| A | BSP Multiseal | M | Metric 60° or Bonded Seal |
| B | BSP 60° or Bonded Seal | N | NPT |
| C | Metric 24° w/ Oring, Light Series | O | SAE Oring Boss |
| D | Metric 24° w/ Oring, Heavy Series | P | SAE 90° |
| E | Metric Flat w/ Oring | Q | Metric 74° |
| F | ORFS | S | JIS BSP 60° |
| G | BSP Flat w/ Oring | T | BSPT |
| H | Metric w/Oring | U | NPSM |
| I | Metric Banjo | W | Bult Welding Tube |
| J | JIC 37° | X | Hose Clamp |
| K | JIS Metric 60° | Y | SAE STAOKE-LOK |
| L | Metric Bonded Seal | Z | BSP Flat Seal |
