| Teradyne/GenRad | QA Part Number |
| 1800 Series 7878, 8852, 8855 | 100-PRG2503L and/or 100-SDN250R |
| 2270, 2271, 2272, 2282 (any model), 2283, 2284, 2286, 2287 built before 7/95 | 100-PLP1241S and/or 100-PLP1241S-B |
| 2280, 2281, 2281a, 2287a 228x ICA (any model), 2283, 2284, 2286, 2287 built after 7/95 TS121, TS124, TS128, TS81, TS84, TS86, TS87 |
100-PLP1541S, 100-PLP1543S, 100-PLP1541S-B or 100-PLP1543S-B |
| 2887L, 2887LX, TS87L, TS87LX, TS128L, TS124LX, TSLH, TSLX, TSH52, TSH51, TSMS,TSA (high density capacity) | 100-PRG2441S, 100-PRG2443S, 100-PLP1541S or 100-PLP1543S |
All specifications subject to change without notice. All dimensions are in [mm]. All spring forces are [gm].