The Disk,valve, cataloged under National Stock Number 4820-00-977-3581, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-977-3581 |
| Primary Part Number | 97144SCCP |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Outside Diameter | 1.030 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Style Designator | PLAIN |
| Material | PLASTIC |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 97144SCCP | Naval Inventory Control Point Mechanicsburg (USA) |
| 1580-11CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 1580-11-97144CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 1580-11-97144 | 3/1 Design control — primary reference Cosmodyne, Llc Dba Cosmodyne Llc |
| 97144SC | 5/1 Secondary reference Vacuum Barrier Corp Div Vacuum Barrier Corporation |
| 1580-11 | 5/1 Secondary reference Vacuum Barrier Corp Div Vacuum Barrier Corporation |
NSN 4820-00-977-3581 is a Disk,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-977-3581 has 3 manufacturer part numbers on file: 97144SCCP (Naval Inventory Control Point Mechanicsburg), 1580-11CP (Naval Inventory Control Point Mechanicsburg), 1580-11-97144CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for 97144SCCP: Overall Height: 0.062 INCHES NOMINAL IN; Outside Diameter: 1.030 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Style Designator: PLAIN. 5 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.