The Ball,check, cataloged under National Stock Number 4820-01-536-4811, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Champ Industries Div Champ Industries, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ball,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Champ Industries Div Champ Industries, Inc (CAGE 0YGR5) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-536-4811 |
| Primary Part Number | COML |
| Item Name | Ball,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Champ Industries Div Champ Industries, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| COML PRIMARY | Champ Industries Div Champ Industries, Inc (USA) |
| Reference | Meaning |
|---|---|
| COML | 5/9 Secondary reference Product Development Group Inc |
NSN 4820-01-536-4811 is a Ball,check, manufactured by Champ Industries Div Champ Industries, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-536-4811 has 1 manufacturer part number on file: COML (Champ Industries Div Champ Industries, Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5975-01-666-6029, 5305-01-672-8985, 5315-01-677-7391. Verify interchangeability with system specifications before substitution.
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.