The Disk,valve, cataloged under National Stock Number 4820-01-215-4377, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mid-America Aerotech, Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Disk,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Mid-America Aerotech, Llc (CAGE 0UES3) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-215-4377 |
| Primary Part Number | 40A987 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mid-America Aerotech, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 40A987 | Mid-America Aerotech, Llc (USA) |
| Reference | Meaning |
|---|---|
| 40A987 | 5/9 Secondary reference E-Systems Inc Montek Div Fluid Controls Opns |
| 40A987 | 3/9 Design control — primary reference U.S. Government activity |
| 40A987 | 5/9 Secondary reference Moog Inc Div Moog Inc., Space and Defense - Salt Lake City |
NSN 4820-01-215-4377 is a Disk,valve, manufactured by Mid-America Aerotech, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-215-4377 has 1 manufacturer part number on file: 40A987 (Mid-America Aerotech, Llc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-215-4377 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.