The Valve,stop-Check, cataloged under National Stock Number 4820-01-189-2107, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Am General Llc. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Am General Llc (CAGE 34623); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); Ranco Inc Ranco Controls Div (CAGE 50992) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-189-2107 |
| Primary Part Number | EC 12339966 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Am General Llc |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EC 12339966 PRIMARY | Am General Llc (USA) |
| 12339966 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| H38C-2619-000 PRIMARY | Ranco Inc Ranco Controls Div (USA) |
| H38C-2619 | Ranco Inc Ranco Controls Div (USA) |
| 5569635 | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 5569635-D | D/9 Drawing number reference only Am General Llc |
| 12339966 | 5/9 Secondary reference Am General Llc |
| RTCO-2619 | 5/9 Secondary reference Avm Inc |
| 4820PL0822698 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4820011892107 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| HV-29185 | C/1 Advisory reference — outside the item-of-supply concept Evans Tempcon Michigan, Llc |
| MB347A-20000 | C/1 Advisory reference — outside the item-of-supply concept Am General Llc |
| RTC0-2619 | C/1 Advisory reference — outside the item-of-supply concept Am General Llc |
| MB347A2000 | C/1 Advisory reference — outside the item-of-supply concept Am General Llc |
NSN 4820-01-189-2107 is a Valve,stop-Check, manufactured by Am General Llc, classified under FSC 4820, Valves, Nonpowered. Status: cancelled.
NSN 4820-01-189-2107 has 5 manufacturer part numbers on file: EC 12339966 (Am General Llc), 12339966 (U S Army Tank Automotive Command Amsta-Im-Mm), H38C-2619-000 (Ranco Inc Ranco Controls Div), H38C-2619 (Ranco Inc Ranco Controls Div), 5569635 (Am General Llc).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-467-2270. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-189-2107 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.