The Ball,check, cataloged under National Stock Number 4820-01-478-1938, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milan Tool Corp.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-478-1938 |
| Primary Part Number | 5910910 |
| Item Name | Ball,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milan Tool Corp. |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 5910910 PRIMARY | Milan Tool Corp. (USA) |
| Reference | Meaning |
|---|---|
| 5910910 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4820-01-478-1938 is a Ball,check, manufactured by Milan Tool Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-478-1938 has 1 manufacturer part number on file: 5910910 (Milan Tool Corp.).
Key specifications for 5910910: Criticality Code Justification: AGAV; Special Features: PERFORMANCE BASED LOGISTICS-STOCK AT VENDORS SITE-SUBMIT TO NAVICP VIA DAAS; Part Name Assigned by Controlling Agency: INAVY - BALL, CHECK, AIRCRAFT; End Item Identification: FIGHTER AIRCRAFT FIRST F18 E/F. 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.