The Valve,non-Return, cataloged under National Stock Number 4820-01-364-9444, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Boll Filter Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-364-9444 |
| Primary Part Number | 2605553 |
| Item Name | Valve,non-Return |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Boll Filter Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 2605553 PRIMARY | Boll Filter Corporation (USA) |
NSN 4820-01-364-9444 is a Valve,non-Return, manufactured by Boll Filter Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-364-9444 has 1 manufacturer part number on file: 2605553 (Boll Filter Corporation).
Key specifications for 2605553: End Item Identification: BACKFLUSHING FILTER. 0 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.