To order UNC/UNF washers use the part number to denote type followed by a letter from the size chart to denote size. For example SP122/D is a plated steel, 10/32” UNF washer. These washers will cross refer to the American NAS1149 (AN960) series, also sizes D (3/16”) onwards are interchangeable with British BA/BSF washers.
| Part Number | Thickness | Material |
|---|
| SP122 | 18 SWG (0.048”) | Cadmium Plated Steel |
| SP123 | Corrosion Resistant Steel |
| SP124 | Alum. Alloy |
| SP125 | 12 SWG (0.104”) |
| SP126 | 26 SWG (0.018”) | Cadmium Plated Steel |
| SP127 | Corrosion Resistant Steel |
| Size Code | Suits Thread |
|---|
| A | 4-40 UNC |
| B | 6-32 UNC |
| C | 8-32 UNC |
| D | 10-32 UNF |
| E | 1/4” UNF |
| G | 5/16” UNF |
| J | 3/8” UNF |
| L | 7/16” UNF |
| N | 1/2” UNF |
| P | 9/16” UNF |
| Q | 5/8”
UNF |
| S | 3/4”
UNF |
| U | 7/8” UNF |
| W | 1” UNF |
| Part Number | Description | Stock | Price | |
| SP127-S | WASHER | 27 | £0.41 | |
| SP127-P | WASHER | 93 | £0.205 | |
| SP127-N | WASHER | 69 | £0.1538 | |
| SP127-L | WASHER | 228 | £0.2563 | |
| SP127-J | WASHER | 9,957 | £0.082 | |
| SP127-G | WASHER | 653 | £0.123 | |
| SP127-E | WASHER | 9,254 | £0.085 | |
| SP127-D | WASHER | 5,622 | £0.082 | |
| SP127-C | WASHER | 5,025 | £0.0923 | |
| SP127-B | WASHERS | 19,391 | £0.0513 | |
| SP127-A | WASHER | 940 | £0.0615 | |
| SP126-U | WASHER | 122 | POA | |
| SP126-S | WASHER | 0 | £0.3588 | |
| SP126-Q | WASHER | 347 | £0.2563 | |
| SP126-P | WASHER | 1 | £0.1025 | |
| SP126-N | WASHER | 995 | £0.287 | |
| SP126-L | WASHER | 1,795 | £0.1538 | |
| SP126-J | WASHER | 1,634 | £0.1435 | |
| SP126-G | WASHER | 18,901 | £0.1435 | |
| SP126-E | WASHER | 36,097 | £0.123 | |
| SP126-D | WASHER | 0 | £0.25 | |
| SP126-C | WASHER | 76,632 | £0.1435 | |
| SP126-B | WASHER | 8,122 | £0.0513 | |
| SP126-A | WASHER(30-298-115-03) | 19,112 | £0.082 | |
| SP125-S | WASHER | 103 | £0.41 | |
| SP125-Q | WASHER | 321 | £0.5125 | |
| SP125-P | WASHER | 94 | £0.2563 | |
| SP125-N | WASHER | 5,529 | £0.2563 | |
| SP125-L | WASHER | 5 | £0.3793 | |
| SP125-J | WASHER | 1,177 | £0.2563 | |
| SP125-G | WASHER | 9,306 | £0.1435 | |
| SP125-E | WASHER | 2,837 | £0.123 | |
| SP125-D | WASHER | 4,593 | £0.123 | |
| SP125-C | WASHER | 8,801 | £0.0615 | |
| SP125-B | WASHER | 2,493 | £0.082 | |
| SP125-A | WASHERS | 21,446 | £0.0615 | |
| SP124-U | WASHER | 274 | £0.41 | |
| SP124-S | WASHER | 191 | £0.41 | |
| SP124-Q | WASHER | 694 | £0.3075 | |
| SP124-P | WASHER | 952 | £0.25 | |
| SP124-N | WASHER | 652 | £0.2563 | |
| SP124-L | WASHER | 41 | £0.205 | |
| SP124-J | *WASHER | 990 | £0.1538 | |
| SP124-G | *WASHER | 4,492 | £0.145 | |
| SP124-E | WASHER | 16,330 | £0.0615 | |
| SP124-D | WASHER | 12,285 | £0.082 | |
| SP124-C | WASHER | 4,304 | £0.082 | |
| SP124-B | *WASHER | 1,332 | £0.082 | |
| SP124-A | WASHER | 16,078 | £0.0513 | |
| SP123-S | WASHERS | 4,263 | £0.4613 | |
