PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7550478-V3D10431A-10C1Control Block Assy

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-549-0959 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-549-0959 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-549-0959. Primary manufacturer part number: 7550478-V3D10431A-10C1.
Features
  • Control Block Assy — FSC 4820
  • 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
  • 31 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

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.

Technical Specifications
ParameterValue
NSN4820-01-549-0959
Primary Part Number7550478-V3D10431A-10C1
Item NameControl Block Assy
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL 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 JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-483-1486V3D10436-01 INTERCHANGEABLE
Body,valve
Vacco Industries
4820-01-545-3255 INTERCHANGEABLE
Valve Assembly,manifold
Cross-Reference Index
Part NumberManufacturer
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)
Related Parts
4820-01-483-1486INTERCHANGEABLE
BODY,VALVE
V3D10436-01
4820-01-545-3255INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD

Frequently Asked Questions

What is NSN 4820-01-549-0959?

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.

What are the part numbers for NSN 4820-01-549-0959?

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.

What NSN replaces 4820-01-549-0959?

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.

What are the specifications of 7550478-V3D10431A-10C1?

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.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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