The Ball and Seat Assembly, cataloged under National Stock Number 4820-01-050-3520, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-050-3520 |
| Primary Part Number | VA1885 PC 4 AND 10 |
| Item Name | Ball and Seat Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF 27425 PC 4 T-BALL 1,27425 PC 10 SEAT 4 |
| 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 |
|---|---|
| VA1885 PC 4 AND VA1885 LC10 | Hunt Valve Company, Inc. (USA) |
| VA1885 PC 4 AND 10 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| VA1885 | D/9 Drawing number reference only Morland Valve Co Inc Sub of Smith Valve Corp |
| VA1885 PC 4 AND VA1885 LC10 | 5/9 Secondary reference Morland Valve Co Inc Sub of Smith Valve Corp |
| VA1885 PC 4 AND 10 | 5/9 Secondary reference Morland Valve Co Inc Sub of Smith Valve Corp |
NSN 4820-01-050-3520 is a Ball and Seat Assembly, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-050-3520 has 2 manufacturer part numbers on file: VA1885 PC 4 AND VA1885 LC10 (Hunt Valve Company, Inc.), VA1885 PC 4 AND 10 (Hunt Valve Company, Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-212-9984, 4820-01-213-0079, 4820-01-340-1537. Verify interchangeability with system specifications before substitution.
Key specifications for VA1885 PC 4 AND 10: General Characteristics Item Description: CONSISTS OF 27425 PC 4 T-BALL 1,27425 PC 10 SEAT 4; End Item Identification: MORELAND VALVE CO. 2.500 IN BALL VALVE P/N VA1885 IN. 1 specification is 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.