The Disk,valve, cataloged under National Stock Number 4820-01-118-2843, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-118-2843 |
| Primary Part Number | SS845-1889557ASSYAS3IN PIECE 69 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | CANCELLED |
| Style Designator | POPPET |
| Shank Diameter | 3.480 INCHES NOMINAL IN |
| Under Flange Height | 0.465 INCHES NOMINAL IN |
| Material | STEEL |
| Seat Angle | 75.0 DEGREES NOMINAL |
| Inside Diameter | 2.885 INCHES NOMINAL IN |
| Flange Diameter | 2.890 INCHES NOMINAL IN |
| Inside Depth | 4.250 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SS845-1889557ASSYAS3IN PIECE 69 PRIMARY | Naval Ship Systems Command (USA) |
| SS845-1889557 | Naval Ship Systems Command (USA) |
| 2620-922X4 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-1889557 | Naval Ship Systems Command (USA) |
NSN 4820-01-118-2843 is a Disk,valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-118-2843 has 4 cross-referenced part numbers: SS845-1889557ASSYAS3IN PIECE 69 (Naval Ship Systems Command), SS845-1889557 (Naval Ship Systems Command), 2620-922X4 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-1889557 (Naval Ship Systems Command).
There are 5 known substitutes for 4820-01-118-2843: 4820-01-110-1270, 4820-01-123-4132, 4820-01-133-7755 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for SS845-1889557ASSYAS3IN PIECE 69: Overall Height: 5.750 INCHES NOMINAL IN; Style Designator: POPPET; Shank Diameter: 3.480 INCHES NOMINAL IN; Under Flange Height: 0.465 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-118-2843 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.