NSN 4820-01-632-4785 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-632-4785. Manufacturer of record part number: 845-7286645 ASSY IRE.
The Valve,ball, cataloged under National Stock Number 4820-01-632-4785, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,ball
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Naval Sea Systems Command (CAGE 53711)
Technical Specifications
Parameter
Value
NSN
4820-01-632-4785
Primary Part Number
845-7286645 ASSY IRE
Item Name
Valve,ball
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-684-6167845-7286645-ITEM NO-44POSSIBLE MATCH
SETSCREW
Possible match (shared part number)Naval Sea Systems Command
5305-01-684-6172845-7286645-ITEM NO-45POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Naval Sea Systems Command
5340-01-684-9236845-7286645-ITEM NO-55POSSIBLE MATCH
LEVER,MANUAL CONTROL
Possible match (shared part number)Naval Sea Systems Command
5310-01-684-9757845-7286645-ITEM NO-40POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Naval Sea Systems Command
NSN 4820-01-632-4785 is a Valve,ball, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-632-4785?
NSN 4820-01-632-4785 has 1 manufacturer part number on file: 845-7286645 ASSY IRE (Naval Sea Systems Command).
What NSN replaces 4820-01-632-4785?
4 possible matches (shared part number, not a government interchangeability claim): 5305-01-684-6167, 5305-01-684-6172, 5340-01-684-9236. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-632-4785 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.
What is the DEMIL code for NSN 4820-01-632-4785?
NSN 4820-01-632-4785 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.