NSN 4820-01-653-1240 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-653-1240. Manufacturer of record part number: 5497359-9.
The Body,valve, cataloged under National Stock Number 4820-01-653-1240, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Body,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Naval Sea Systems Command (CAGE 53711); Lockheed Martin Corporation Div Rotary and Mission Systems (CAGE 38597)
Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
Reference documents
Reference
Meaning
5497359
D/9Drawing number reference only
Naval Sea Systems Command
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 4820-01-653-1240?
NSN 4820-01-653-1240 is a Body,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-653-1240?
NSN 4820-01-653-1240 has 2 manufacturer part numbers on file: 5497359-9 (Naval Sea Systems Command), 5497359-9 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Is NSN 4820-01-653-1240 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 4820-01-653-1240?
NSN 4820-01-653-1240 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.