The Seat,valve, cataloged under National Stock Number 4820-01-196-1198, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crane Co Div Valve Div. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-196-1198 |
| Primary Part Number | 18972 PIECE 18 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | ACTIVE |
| Nominal Thread Size | 2.375 INCHES SINGLE THREADED PORTION IN |
| Thread Quantity Per Inch | 16 SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Material Document and Classification | ASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material | COPPER ALLOY OVERALL |
| Flange Seat to Disk End Height | 0.375 INCHES NOMINAL IN |
| Flange Diameter | 2.593 INCHES NOMINAL IN |
| Body Inside Diameter | 2.375 INCHES NOMINAL IN |
| Thread Length | 0.594 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Under Flange Height | 0.375 INCHES NOMINAL IN |
| Seating Surface Shape | FLAT |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 18972 | Crane Co Div Valve Div (USA) |
| 18972-18 | Crane Co Div Valve Div (USA) |
| 18972 PIECE 18 PRIMARY | Crane Co Div Valve Div (USA) |
NSN 4820-01-196-1198 is a Seat,valve, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-196-1198 has 3 cross-referenced part numbers: 18972 (Crane Co Div Valve Div), 18972-18 (Crane Co Div Valve Div), 18972 PIECE 18 (Crane Co Div Valve Div).
There are 7 known substitutes for 4820-01-196-1198: 2540-00-081-5441, 3110-00-100-0355, 5365-00-833-3649 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 18972 PIECE 18: Nominal Thread Size: 2.375 INCHES SINGLE THREADED PORTION IN; Thread Quantity Per Inch: 16 SINGLE THREADED PORTION; Style Designator: THREADED FLANGED; Thread Series Designator: UN SINGLE THREADED PORTION. 13 total characteristics are documented in the Federal Logistics Information System.