The Cock,drain, cataloged under National Stock Number 4820-01-339-0310, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bromine Systems Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-339-0310 |
| Primary Part Number | 169048 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bromine Systems Inc |
| Status | ACTIVE |
| Style Designator | ANGLE |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 169048 PRIMARY | Bromine Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 2109-00 ITEM 10 | C/1 Advisory reference — outside the item-of-supply concept Pentair Filtration Inc Dba Ever Pure |
| 2109-00 ITEM 10 | 5/9 Secondary reference Pentair Filtration Solutions, Llc |
| 3057-05 | 3/9 Design control — primary reference Pentair Filtration Solutions, Llc |
| 3057-05 | 5/9 Secondary reference Pentair Filtration Inc Dba Ever Pure |
| 169048 | 5/9 Secondary reference Pentair Filtration Inc Dba Ever Pure |
NSN 4820-01-339-0310 is a Cock,drain, manufactured by Bromine Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-339-0310 has 1 manufacturer part number on file: 169048 (Bromine Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-524-9934. Verify interchangeability with system specifications before substitution.
Key specifications for 169048: Style Designator: ANGLE; Material: COPPER ALLOY BODY; Valve Operation Method: MANUAL. 3 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.