The Disk,valve, cataloged under National Stock Number 4820-01-223-8807, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dover Resources, Inc. Div Norriseal. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-223-8807 |
| Primary Part Number | 51310B172 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Outside Diameter | 3.725 INCHES NOMINAL IN |
| Style Designator | BUTTERFLY |
| Material | COPPER ALLOY |
| Material Thickness | 0.445 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.120 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 51310B172 | Dover Resources, Inc. Div Norriseal (USA) |
| 51310B172 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 3 1-2 874-2 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 900-092 PIECE 4 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 900-092 | Norriseal Norris Values Div Dba Dover Co (USA) |
| 900-092 PIECE 4 | Dover Resources, Inc. Div Norriseal (USA) |
NSN 4820-01-223-8807 is a Disk,valve, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-223-8807 has 6 cross-referenced part numbers: 51310B172 (Dover Resources, Inc. Div Norriseal), 51310B172 (Norriseal Norris Values Div Dba Dover Co), 3 1-2 874-2 (Norriseal Norris Values Div Dba Dover Co), 900-092 PIECE 4 (Norriseal Norris Values Div Dba Dover Co), 900-092 (Norriseal Norris Values Div Dba Dover Co) and 1 more.
There are 3 known substitutes for 4820-01-223-8807: 5935-00-581-5945, 5310-01-172-0950, 4820-01-228-9412. Verify interchangeability with system specifications before substitution.
Key specifications for 51310B172: Outside Diameter: 3.725 INCHES NOMINAL IN; Style Designator: BUTTERFLY; Material: COPPER ALLOY; Material Thickness: 0.445 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.