The Ring,lower Adjusting, cataloged under National Stock Number 4820-01-038-8514, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-038-8514 |
| Primary Part Number | H3299577PC7 |
| Item Name | Ring,lower Adjusting |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | CORROSION RESISTING STEEL; 2.188 IN. OD; 0.719 IN. H; 1.599 IN. ID; THREADED INTERNAL 1.6935-16 NS 0.469 THD LG; 18 SLOTS ON OUTER PERIPHERY IN |
| 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 |
|---|---|
| H3299577PC7 PRIMARY | Naval Sea Systems Command (USA) |
| VDL804 | Ashcroft Inc Dba Heise (USA) |
| 5V0A72PC7 | Ashcroft Inc Dba Heise (USA) |
| 5VQE72PC7 | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| VDL804 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 4820-01-038-8514 is a Ring,lower Adjusting, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-038-8514 has 4 manufacturer part numbers on file: H3299577PC7 (Naval Sea Systems Command), VDL804 (Ashcroft Inc Dba Heise), 5V0A72PC7 (Ashcroft Inc Dba Heise), 5VQE72PC7 (Ashcroft Inc Dba Heise).
Key specifications for H3299577PC7: General Characteristics Item Description: CORROSION RESISTING STEEL; 2.188 IN. OD; 0.719 IN. H; 1.599 IN. ID; THREADED INTERNAL 1.6935-16 NS 0.469 THD LG; 18 SLOTS ON OUTER PERIPHERY IN. 1 specification is 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.