The Valve,check, cataloged under National Stock Number 4820-01-331-6131, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Primore Sales Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-331-6131 |
| Primary Part Number | 24601-P |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Primore Sales Inc |
| Status | ACTIVE |
| Valve Size | 0.500 INCHES IN |
| 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 |
|---|---|
| 24601-P PRIMARY | Primore Sales Inc (USA) |
| 18-045-106 | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| Reference | Meaning |
|---|---|
| 43C3-121 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-331-6131 is a Valve,check, manufactured by Primore Sales Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-331-6131 has 2 manufacturer part numbers on file: 24601-P (Primore Sales Inc), 18-045-106 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil).
Key specifications for 24601-P: Valve Size: 0.500 INCHES IN. 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.