The Seat,valve, cataloged under National Stock Number 4820-01-240-1052, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ships Machinery International, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-240-1052 |
| Primary Part Number | 5185 ITEM 57 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ships Machinery International, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5185 ITEM 57 PRIMARY | Ships Machinery International, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 6702.69 SPT-126 | C/1 Advisory reference — outside the item-of-supply concept Ships Machinery International, Inc. |
| 5185 | D/9 Drawing number reference only Ships Machinery International, Inc. |
| 7344-SP 7470 | C/1 Advisory reference — outside the item-of-supply concept Ships Machinery International, Inc. |
NSN 4820-01-240-1052 is a Seat,valve, manufactured by Ships Machinery International, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-240-1052 has 1 manufacturer part number on file: 5185 ITEM 57 (Ships Machinery International, Inc.).
Key specifications for 5185 ITEM 57: End Item Identification: TRICONN CORP,BOW THRUSTER DWG NO. 5185. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.