The Seat,valve, cataloged under National Stock Number 4820-01-215-3248, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 12 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-215-3248 |
| Primary Part Number | 9000-2129 PIECE 3 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.688 INCHES NOMINAL IN |
| Material | NICKEL ALLOY B OVERALL |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | ASTM B164 ALLOY R-405 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Under Flange Height | 0.812 INCHES NOMINAL IN |
| Thread Length | 0.656 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Nominal Thread Size | 3.459 INCHES SINGLE THREADED PORTION IN |
| Seating Surface Shape | FLAT |
| Flange Diameter | 3.875 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 11-1/2 SINGLE THREADED PORTION |
| Body Inside Diameter | 2.625 INCHES MINIMUM AND 2.630 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 30147 PIECE 3 | Crane Co Div Valve Div (USA) |
| 9000-2129 PIECE 3 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 9000-2129 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4820-01-215-3248 is a Seat,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-215-3248 has 3 cross-referenced part numbers: 30147 PIECE 3 (Crane Co Div Valve Div), 9000-2129 PIECE 3 (Electric Boat Corporation Div General Dynamics Electric Boat), 9000-2129 (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 5 known substitutes for 4820-01-215-3248: 4820-00-900-2344, 4820-01-214-7193, 4820-01-214-9006 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 9000-2129 PIECE 3: Flange Seat to Disk End Height: 0.688 INCHES NOMINAL IN; Special Features: 4 SLOTS 0.750 IN. WIDE EQUALLY SPACED IN; Material: NICKEL ALLOY B OVERALL; Style Designator: THREADED FLANGED. 13 total characteristics are documented in the Federal Logistics Information System.