The Cock,drain, cataloged under National Stock Number 4820-01-499-4628, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Forespar Products Corp. Government technical data includes 4 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. 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 | 4820-01-499-4628 |
| Primary Part Number | MF849-3/4 IN. |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Forespar Products Corp |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Material | PLASTIC POLYAMIDE NYLON 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 |
|---|---|
| 904010 | Forespar Products Corp (USA) |
| MF849-3/4 IN. PRIMARY | Forespar Products Corp (USA) |
NSN 4820-01-499-4628 is a Cock,drain, manufactured by Forespar Products Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-499-4628 has 2 manufacturer part numbers on file: 904010 (Forespar Products Corp), MF849-3/4 IN. (Forespar Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-591-5008. Verify interchangeability with system specifications before substitution.
Key specifications for MF849-3/4 IN.: Style Designator: STRAIGHT THRU; Special Features: THREADS PARALLEL; Media for Which Designed: WATER, SALT SINGLE RESPONSE; Part Name Assigned by Controlling Agency: SEACOCK. 4 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.