NSN 4820-01-643-9169 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-643-9169. Manufacturer of record part number: 512-7670557 ITEM NO. 1 ASSY 93.
Primary part number: 512-7670557 ITEM NO. 1 ASSY 93
Manufacturer: Naval Sea Systems Command
General Description
The Cover Plate,disk, cataloged under National Stock Number 4820-01-643-9169, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-643-9169?
NSN 4820-01-643-9169 is a Cover Plate,disk, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-643-9169?
NSN 4820-01-643-9169 has 2 manufacturer part numbers on file: 512-7670557 ITEM NO. 1 ASSY 93 (Naval Sea Systems Command), 15339926 ASSY 93 (Huntington Ingalls Inc Div Newport News Shipbuilding).
What are the specifications of 512-7670557 ITEM NO. 1 ASSY 93?
Key specifications for 512-7670557 ITEM NO. 1 ASSY 93: End Item Identification: VALVE, CHECK. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-643-9169 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.