The Valve,check, cataloged under National Stock Number 4820-01-216-8652, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Collins Engine Nozzles, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-216-8652 |
| Primary Part Number | 48634 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Collins Engine Nozzles, Inc |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12284698 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 48634 PRIMARY | Collins Engine Nozzles, Inc (USA) |
| 505P366 PRIMARY | Woodward Fst, Inc (USA) |
| 505P366-01 PRIMARY | Woodward Fst, Inc (USA) |
| Reference | Meaning |
|---|---|
| CV52-15 | 5/9 Secondary reference U.S. Government activity |
| CV52-45 | 3/2 Design control — primary reference U.S. Government activity |
| 505P366 | 5/9 Secondary reference Textron Inc |
| 4820012168652 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 4820-01-216-8652 is a Valve,check, manufactured by Collins Engine Nozzles, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-216-8652 has 4 manufacturer part numbers on file: 12284698 (U S Army Tank Automotive Command Amsta-Im-Mm), 48634 (Collins Engine Nozzles, Inc), 505P366 (Woodward Fst, Inc), 505P366-01 (Woodward Fst, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-699-6357. Verify interchangeability with system specifications before substitution.
Key specifications for 48634: Mounting Position: HORIZONTAL. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.