The Disk,valve, cataloged under National Stock Number 4820-01-220-1338, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ametek Inc Schutte and Koerting Div. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-220-1338 |
| Primary Part Number | 88S-0087V-0020 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ametek Inc Schutte and Koerting Div |
| Status | ACTIVE |
| Style Designator | SOLID WEDGE |
| Nominal Thread Size | 0.750 INCHES IN |
| Thread Class | 3B |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 88S-0087V-0020 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 62-A-1-F3 PIECE 3 | Ametek Inc Schutte and Koerting Div (USA) |
| Reference | Meaning |
|---|---|
| 62-A-1-F3 | D/9 Drawing number reference only Ametek Inc Schutte and Koerting Div |
NSN 4820-01-220-1338 is a Disk,valve, manufactured by Ametek Inc Schutte and Koerting Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-220-1338 has 2 manufacturer part numbers on file: 88S-0087V-0020 (Ametek Inc Schutte and Koerting Div), 62-A-1-F3 PIECE 3 (Ametek Inc Schutte and Koerting Div).
Key specifications for 88S-0087V-0020: Overall Height: 1.625 INCHES NOMINAL IN; Style Designator: SOLID WEDGE; Nominal Thread Size: 0.750 INCHES IN; Thread Class: 3B. 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.