The Partszkitzzballzvlv, cataloged under National Stock Number 4820-01-549-6671, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-549-6671 |
| Item Name | Partszkitzzballzvlv |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY CONTROLLED IAW NAVY LEVEL1 ASSURANCE GUIDE, CLEANED IAW MIL-C- 52211 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| H547-0001-DF330613-97-6,9 | 5/1 Secondary reference U.S. Government activity |
| 7550478-DF330613-06,09C1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 7550478-DF330613-06,09 | 5/1 Secondary reference Naval Sea Systems Command |
| G547-0002-DF330613-06,09C1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| DF330613 FIND NO 6,9 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| H547-0001-DF330613-97-6,9C1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 801-6408529 FIND NO 6,9C1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 7383858-DF330613-97-6,9 | 5/1 Secondary reference Naval Sea Systems Command |
| DF330613 FIND NO 6,9C1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 7383858-DF330613-97-6,9C1 | 3/1 Design control — primary reference Naval Inventory Control Point Mechanicsburg |
| 801-6408529 FIND NO 6,9 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-549-6671 is a Partszkitzzballzvlv, classified under FSC 4820, Valves, Nonpowered. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-631-9156, 4820-01-633-7721. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-549-6671: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY CONTROLLED IAW NAVY LEVEL1 ASSURANCE GUIDE, CLEANED IAW MIL-C- 52211. 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.
NSN 4820-01-549-6671 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.