The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-208-5504, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-208-5504 |
| Primary Part Number | 803-5001003-M331 PC 03A,04Q3 |
| Item Name | Parts Kit,ball Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 803-5001003-M331 PC 03A,04Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 803-5001003-X3X1-03A AND 04Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 803-5001003-A3XX03A AND 04Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| SS845-2445135 PC 14,19,1/2INQ3 | Naval Inventory Control Point Mechanicsburg (USA) |
| CD-023-14-3,4Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 803-5001003-X3XX-03A,04Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| HBV-F2-04-0220-2 & 4 | D/9 Drawing number reference only B N L Industries Inc |
| 803-5001003-A3XX03A AND 04 | 5/1 Secondary reference Naval Sea Systems Command |
| CD-023-14-3,4 | 5/1 Secondary reference Naval Sea Systems Command |
| 803-5001003-M3XX-03A,04Q3 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 803-5001003-X3XX-03A,04 | 3/1 Design control — primary reference Naval Sea Systems Command |
| SS845-2445135 PC 14,19,1/2IN | 5/1 Secondary reference U.S. Government activity |
| 803-5001003-M3XX-03A,04 | 5/1 Secondary reference Naval Sea Systems Command |
| 803-5001003-X3X1-03A AND 04 | 5/1 Secondary reference Naval Sea Systems Command |
| 803-5001003-M331 PC 03A,04 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-208-5504 is a Parts Kit,ball Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-208-5504 has 6 manufacturer part numbers on file: 803-5001003-M331 PC 03A,04Q3 (Naval Inventory Control Point Mechanicsburg), 803-5001003-X3X1-03A AND 04Q3 (Naval Inventory Control Point Mechanicsburg), 803-5001003-A3XX03A AND 04Q3 (Naval Inventory Control Point Mechanicsburg), SS845-2445135 PC 14,19,1/2INQ3 (Naval Inventory Control Point Mechanicsburg), CD-023-14-3,4Q3 (Naval Inventory Control Point Mechanicsburg) and 1 more.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-355-0532, 4820-01-545-0016. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5001003-M331 PC 03A,04Q3: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL. 2 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.