The Disk,valve, cataloged under National Stock Number 4820-01-275-1831, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-275-1831 |
| Primary Part Number | 20520-1CP |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20520-1CP | Naval Inventory Control Point Mechanicsburg (USA) |
| W-302H-A17 ITEM 1CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 20520-1 | Grove Valve Operations (USA) |
NSN 4820-01-275-1831 is a Disk,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-275-1831 has 3 cross-referenced part numbers: 20520-1CP (Naval Inventory Control Point Mechanicsburg), W-302H-A17 ITEM 1CP (Naval Inventory Control Point Mechanicsburg), 20520-1 (Grove Valve Operations).
There are 6 known substitutes for 4820-01-275-1831: 5905-00-043-0110, 5355-00-058-1054, 4820-00-942-7684 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20520-1CP: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 2 total characteristics are documented in the Federal Logistics Information System.