The Valve,check, cataloged under National Stock Number 4820-01-589-0169, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Robertson Fuel Systems, L.l.c.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-589-0169 |
| Primary Part Number | HM019-017-BSC |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Robertson Fuel Systems, L.l.c. |
| Status | ACTIVE |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | RUBBER OVERALL |
| 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 |
|---|---|
| HM019-017-BSC PRIMARY | Robertson Fuel Systems, L.l.c. (USA) |
| 12540516 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4820-01-589-0169 is a Valve,check, manufactured by Robertson Fuel Systems, L.l.c., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-589-0169 has 2 manufacturer part numbers on file: HM019-017-BSC (Robertson Fuel Systems, L.l.c.), 12540516 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for HM019-017-BSC: Special Features: MEASUREMENTS 3.5 INCHES X 4.5 INCHES X 2.5 INCHES IN; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Part Name Assigned by Controlling Agency: VALVE, FLEXIBLE CHECK; End Item Identification: 2350-01-506-0132; ARMORED RECONN-AIRBORNE ASSAULT; A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE. 2 specifications are 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.