The Control Block Assy, cataloged under National Stock Number 4820-01-549-0959, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 31 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-549-0959 |
| Primary Part Number | 7550478-V3D10431A-10C1 |
| Item Name | Control Block Assy |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1330 |
| Criticality Code Justification | ZZZY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7550478-V3D10431A-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-V3D10506-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| V3D10506-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-V3D10431-10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| V3D10431 ITEM 10 | Vacco Industries (USA) |
| G547-0002-V3D10431-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| V3D10506 ITEM 10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-V3D10431B-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| V3D10506-10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 7383858-V3D10431B-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-V3D10431A-10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| H547-0001-V3D10431A-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-V3D10431B-10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| V3D10431-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| V3D10436-01C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| V3D10431 ITEM 10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-V3D10506-10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 7383858-V3D10431A-10 | Naval Sea Systems Command (USA) |
| H547-0001-V3D10431A-10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| V3D10431A-10C1 | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 4820-01-549-0959 is a Control Block Assy, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-549-0959 has 31 cross-referenced part numbers: 7550478-V3D10431A-10C1 (Naval Inventory Control Point Mechanicsburg), 7550478-V3D10506-10C1 (Naval Inventory Control Point Mechanicsburg), V3D10506-10C1 (Naval Inventory Control Point Mechanicsburg), G547-0002-V3D10431-10 (Electric Boat Corporation Div General Dynamics Electric Boat), V3D10431 ITEM 10 (Vacco Industries) and 26 more.
There are 2 known substitutes for 4820-01-549-0959: 4820-01-483-1486, 4820-01-545-3255. Verify interchangeability with system specifications before substitution.
Key specifications for 7550478-V3D10431A-10C1: Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1330; Criticality Code Justification: ZZZY; End Item Identification: MANIFOLD, QUIET AIR REDUCING; MANIFOLD, PRESSURE REDUCING; Special Features: REGULATOR CONTROL BLOCK ASSEMBLY (DWG NOMENCLATURE). 4 total characteristics are documented in the Federal Logistics Information System.