MIL-C-18312 CH Capacitors - Legacy Military Inventory
Electronic Expediters stocks legacy CH capacitors associated with MIL-C-18312 and M18312 military part numbers. MIL-C-18312 covered fixed metallized paper-plastic or plastic-film dielectric capacitors in hermetically sealed metal cases.
MIL-C-18312 has been canceled. Certain detail specifications direct future acquisition to corresponding MIL-PRF-39022 sheets, making both the historical CH designation and the newer CHR/M39022 family important when researching replacement requirements.
Examples found in Expediters inventory include CH09A1NE104K, CH05A1RA823J, CH08A1NE105K, CH54B1NF475K and M18312/02-0177.
MIL-C-18312 and CH Capacitor Identification
Legacy drawings may identify these capacitors by CH style, an M18312 slash-sheet number or a manufacturer part number. Because the specification is canceled, exact identification is particularly important when supporting installed military equipment.
Search M18312 and CH Capacitors by Exact Part Number
Search the complete M18312 or CH identifier whenever available. Expediters' live inventory may include multiple manufacturers, date codes or historical cross-references for the same military requirement.
MIL-C-18312 / CH Legacy Inventory
253 matching salable inventory records
| Part Number | Brand | Military / Alt Reference | EE / SE # | Date Code | Lot # | Qty Available | Part Details |
|---|---|---|---|---|---|---|---|
| CH09A1NF474K | SPRAGUE | GA474X0600K | 365747 | 8432 | 13942 | 12 | View Part |
| CH09A1RA104J | SPRAGUE | .1MFD-50VDC-5% | 221399 | — | L671 | 13 | View Part |
| CH09A1RA104J | WEST | — | 806306 | — | C208 | 95 | View Part |
| CH09A1RA104J | SPR | GA104X0050J.6X.1 | 421036 | — | 13942 | 34 | View Part |
| CH09A1RA106M | SPRAGUE | GA106X0050M | 370645 | — | 13942 | 57 | View Part |
| CH09A1RA106M | SPR | — | 429917 | — | 13942 | 30 | View Part |
| CH09A1RA155J | AEROVOX | — | 223360 | — | L671 | 10 | View Part |
| CH09A1RA183J | WESTCAP | GA183X0050J | 264454 | — | 12719 | 9 | View Part |
| CH09A1RA184J | AVX | GA184X0050J | 220800 | — | L671 | 18 | View Part |
| CH09A1RA184K | — | — | 1024473 | — | C209 | 2 | View Part |
| CH09A1RA223J | WESTCAP | GA222X0050J | 28440 | — | 1636 | 57 | View Part |
| CH09A1RA223K | WESTCA | .022UF-50V-10% | 167884 | — | A175 | 67 | View Part |
| CH09A1RA224K | SPRAGUE | M18312/02-0346 | 253895 | — | P158 | 19 | View Part |
| CH09A1RA225J | AEROVOX | 2.2MFD-50V-5% | 224845 | — | L671 | 19 | View Part |
| CH09A1RA274K | WESTCAP | — | 1024474 | 8433 | C209 LOC | 1 | View Part |
| CH09A1RA274K | WESTCAP | GA274X0050K | 263668 | — | 12719 | 6 | View Part |
| CH09A1RA275K | WESTCAP | — | 167168 | — | A175 | 12 | View Part |
| CH09A1RA305K | ACUSHNE | — | 1066157 | 8320 | C211 | 850 | View Part |
| CH09A1RA333K | — | GA333X0050K | 167269 | — | A175 | 15 | View Part |
| CH09A1RA334J | WESTCAP | GA334X0050J.9 | 250608 | — | 11778 | 24 | View Part |
| CH09A1RA334K | WESTCAP | GA334X0050K | 167229 | — | A175 | 21 | View Part |
| CH09A1RA335J | WC | M18312/02-0393 | 1167314 | 7032 | C206 | 3 | View Part |
| CH09A1RA395J | AEROVOX | 3.9MFD-50V-5% | 224735 | — | L671 | 18 | View Part |
| CH09A1RA564J | SPRAGUE | GA564X0050J | 223379 | — | L671 | 21 | View Part |
| CH09A1RA565J | AVX | GA565X0050J1.6X.7 | 224835 | — | L671 | 18 | View Part |
MIL-C-18312 Replacement and Legacy Sourcing
Canceled specifications continue to appear in military drawings, maintenance documentation, repair requirements and long-lived equipment. When a future-acquisition note points to MIL-PRF-39022, confirm the applicable detail specification and complete electrical requirements before substituting a part.
MIL-C-18312 and MIL-PRF-39022
The relationship between MIL-C-18312 and MIL-PRF-39022 makes cross-family research useful. Expediters maintains inventory under both older CH/M18312 references and newer CHR/M39022 references.
Related MIL-SPEC Capacitor Resources
Military Capacitors & MIL-SPEC Inventory | MIL-PRF-39022 CHR Capacitors | All Specialized Capacitors
MIL-C-18312 Questions
Is MIL-C-18312 still active?
No. MIL-C-18312 has been canceled, but its part numbers remain relevant to legacy military systems and replacement sourcing.
What is a CH capacitor?
CH is the historical military style designation encountered with MIL-C-18312 fixed film capacitors.
What does M18312 identify?
M18312 numbers identify military part-number requirements associated with the MIL-C-18312 family and its detail specifications.
What specification should be checked for future acquisition?
Applicable cancellation notices may direct acquisition to corresponding MIL-PRF-39022 detail specifications. The exact slash sheet should always be verified.
Related Military Capacitor & MIL-SPEC Families
MIL-PRF-39014 CKR | MIL-PRF-39003 CSR | MIL-PRF-39006 CLR | MIL-PRF-55681 CDR | MIL-PRF-83421 CRH | MIL-PRF-39001 CMR | MIL-PRF-23269 CYR | MIL-PRF-39018 CU/CUR | MIL-PRF-39022 CHR | MIL-PRF-15733 RFI Filters | MIL-PRF-62 CE