The Valve,y, cataloged under National Stock Number 4820-01-413-9590, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-413-9590 |
| Primary Part Number | A-14837 |
| Item Name | Valve,y |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU Y-PATTERN |
| 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 |
|---|---|
| A-14837 PRIMARY | Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co (USA) |
| Reference | Meaning |
|---|---|
| A-14837 | 5/9 Secondary reference Mueller Brass Co. |
NSN 4820-01-413-9590 is a Valve,y, manufactured by Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-413-9590 has 1 manufacturer part number on file: A-14837 (Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co).
Key specifications for A-14837: Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Style Designator: STRAIGHT THRU Y-PATTERN; Special Features: FLARE BY FLARE; VALVE SZ 0.625 IN.; PACKLESS LINE VALVE IN; Material: COPPER ALLOY BODY. 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.