| Part No. | Where Used | Description | Value |
| 403-399 | GR-78 | ceramic filter | 455kHz |
| 404-1 | TS-3 | 4.5 mc | |
| 404-100 | HX-10 | 0.005% | 3400 kc |
| 404-101 | HX-10 | 0.005% | 10,400 kc |
| 404-102 | HX-10 | 0.003% | 17,400 kc |
| 404-103 | HX-10 | 0.003% | 24,400 kc |
| 404-104 | HX-10 | 0.003% | 25,600 kc |
| 404-12 | HR-20 | 3mc filter | |
| 404-13 | XC-6 | third overtone | 28 mc |
| 404-182 | HR-20 | 2998.5 kc | |
| 404-183 | HR-20 | 3001.5 kc | |
| 404-191 | HW-32, HW-22A, HW-12 | crystal filter | 2305.1 kc |
| 404-192 | HW-32, HW-22A, HW-12 | crystal filter | 2303.5 kc |
| 404-196 | HW-22A | 2303.3 kc | |
| 404-197 | HW-32, HW-22A, HW-12 | carrier oscillator | 2306.7 kc |
| 404-198 | HW-22A | 11.190 mc | |
| 404-199 | HW-32 | heterodyne oscillator | 18.275 mc |
| 404-205 | SB-100, SB-101, SB-110A | 3393.6 kc | |
| 404-206 | SB-100, SB-101, SB-110A, HW-16 | 3396.4 kc | |
| 404-207 | SB-100, SB-101 | 12.395 mc | |
| 404-208 | SB-100, SB-101 | 15.895 mc | |
| 404-209 | SB-100, SB-101 | 22.895 mc | |
| 404-210 | SB-100, SB-101 | 29.895 mc | |
| 404-211 | SB-100, SB-101 | 36.895 mc | |
| 404-212 | SB-100, SB-101 | 37.395 mc | |
| 404-213 | SB-100, SB-101 | 37.895 mc | |
| 404-214 | SB-100, SB-101 | 38.395 mc | |
| 404-215 | SB-100, SB-101 | 3395.4 kc | |
| 404-238 | GR-78, IG-57A | 3579.545mc | |
| 404-241 | HW-16 | 3395.150kc | |
| 404-242 | HW-16 | 3395.450kc | |
| 404-244 | 19kc | ||
| 404-245 | 5.35mc | ||
| 404-263 | SB-110A | 3394.4 mc | |
| 404-264 | SB-110A | 41.605mc | |
| 404-265 | SB-110A | 42.105mc | |
| 404-266 | SB-110A | 42.605mc | |
| 404-267 | SB-110A | 43.105mc | |
| 404-283 | SB-110A | crystal filter - 2.1kc bandpass | 3395kc |
| 404-301 | HW-16 | 9.045mc | |
| 404-302 | HW-16 | 12.545mc | |
| 404-303 | HW-16 | 26.545mc | |
| 404-332 | IG-57A | 3.080 MHz | |
| 404-333 | IG-57A | 4.080 MHz | |
| 404-334 | IG-57A | 39.750 mc | |
| 404-335 | IG-57A | 41.250 mc | |
| 404-336 | IG-57A | 42.170 mc | |
| 404-337 | IG-57A | 42.500 mc | |
| 404-338 | IG-57A | 45.000 mc | |
| 404-339 | IG-57A | 45.750 mc | |
| 404-340 | IG-57A | 47.250 mc | |
| 404-341 | IG-57A | 67.250 mc | |
| 404-342 | IG-57A | 96.625 mc | |
| 404-344 | IG-57A | 42.750 mc | |
| 404-367 | GR-78 | 500 kHz | |
| 404-38 | FMO-1 | 10.0 mc | |
| 404-39 | FMO-1 | 10.7 mc | |
| 404-39 | IG-57A | 10.7 mc | |
| 404-4 | IG-57A | 4.500 MHz | |
| 404-414 | IB-1100 | 1 MHz | |
| 404-424 | SB-650 | 1 MHz | |
| 404-43 | SB-100, SB-101, HD-20, SB-110A | 100 kc | |
| 404-5 | RX-1 | matched pair | 1632 - 1732kc |
| 404-6 | RX-1 | 100kc | |
| 404-639 | HW-9 | 8.8314 MHz | |
| 404-640 | HW-9 | crystal filter | 8.830 MHz |
| 404-664 | HW-9 | 18.330 MHz | |
| 404-665 | HW-9 | 21.830 MHz | |
| 404-667 | HW-9 | 28.830 MHz | |
| 404-669 | HW-9 | 35.830 MHz | |
| 404-90 | HX-10 | crystal filter | 4990 kc |
| 404-91 | HX-10 | 0.003% | 4990 kc |
| 404-92 | HX-10 | 0.005% | 4010 kc |
| 404-93 | HX-10 | 0.003% | 13.990 kc |
| 404-98 | HX-10 | 0.003% | 25.000 kc |