The Bowl,sediment, cataloged under National Stock Number 4730-01-221-1644, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-221-1644 |
| Primary Part Number | BK504Y |
| Item Name | Bowl,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America |
| Status | ACTIVE |
| Material | PLASTIC POLYCARBONATE |
| Furnished Items and Quantity | DRAIN COCK 1 |
| 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 |
|---|---|
| BK504Y PRIMARY | Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America (USA) |
| Reference | Meaning |
|---|---|
| 504Z3 | 5/9 Secondary reference Watts Regulator Company |
NSN 4730-01-221-1644 is a Bowl,sediment, manufactured by Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-221-1644 has 1 manufacturer part number on file: BK504Y (Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America).
1 possible match (shared part number, not a government interchangeability claim): 2910-01-692-0624. Verify interchangeability with system specifications before substitution.
Key specifications for BK504Y: Material: PLASTIC POLYCARBONATE; Furnished Items and Quantity: DRAIN COCK 1. 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.