NSN 4820-01-644-1640 · NIIN 016441640 · Part number 63C521061G1
Lockheed Martin Corporation Div Rotary and Mission Systems · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 16331
Government record, cited
NSN 4820-01-644-1640 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-644-1640. Manufacturer of record part number: 63C521061G1.
Also searched as4820-01-644-1640 ·
4820016441640 ·
NIIN 016441640 ·
01-644-1640 ·
FSC 4820 Valves, Nonpowered · CAGE 16331 · 63C521061G1 · 63E921400G7 REV F ITEM 15
Manufacturer of record: Lockheed Martin Corporation Div Rotary and Mission Systems
Identification
NSN: 4820-01-644-1640
NIIN: 016441640
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 63C521061G1
Manufacturer: Lockheed Martin Corporation Div Rotary and Mission Systems
General Description
The Parts Kit,gate Valve, cataloged under National Stock Number 4820-01-644-1640, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Parts Kit,gate Valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Lockheed Martin Corporation Div Rotary and Mission Systems (CAGE 16331)
Technical Specifications
Parameter
Value
NSN
4820-01-644-1640
Primary Part Number
63C521061G1
Item Name
Parts Kit,gate Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Lockheed Martin Corporation Div Rotary and Mission Systems
Lockheed Martin Corporation Div Rotary and Mission Systems (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 4820-01-644-1640?
NSN 4820-01-644-1640 is a Parts Kit,gate Valve, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-644-1640?
NSN 4820-01-644-1640 has 2 manufacturer part numbers on file: 63E921400G7 REV F ITEM 15 (Lockheed Martin Corporation Div Rotary and Mission Systems), 63C521061G1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Is NSN 4820-01-644-1640 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.