NSN 4820-01-606-0563 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-606-0563. Manufacturer of record part number: GT01-2.5F-1BMX P/NR01-2.5F-1BMX.
Supply Items and Quantities: SEAT INSERT(1), DISK(1), SPRING(1), SPRING PIN(1), SEAT SEAL(1), ASSEMBLY RING(1)
2 manufacturer part numbers on file
Manufacturer of record: Hy-Grade Valve, Inc.
Identification
NSN: 4820-01-606-0563
NIIN: 016060563
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: GT01-2.5F-1BMX P/NR01-2.5F-1BMX
Manufacturer: Hy-Grade Valve, Inc.
General Description
The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-606-0563, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hy-Grade Valve, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-606-0563
Primary Part Number
GT01-2.5F-1BMX P/NR01-2.5F-1BMX
Item Name
Parts Kit,safety Relief Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Hy-Grade Valve, Inc.
Status
ACTIVE
Component Quantity
6
Supply Items and Quantities
SEAT INSERT(1), DISK(1), SPRING(1), SPRING PIN(1), SEAT SEAL(1), ASSEMBLY RING(1)
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 4820-01-606-0563?
NSN 4820-01-606-0563 is a Parts Kit,safety Relief Valve, manufactured by Hy-Grade Valve, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-606-0563?
NSN 4820-01-606-0563 has 2 manufacturer part numbers on file: R01-2.5F-1BMX (W & O Supply Inc), GT01-2.5F-1BMX P/NR01-2.5F-1BMX (Hy-Grade Valve, Inc.).
What are the specifications of GT01-2.5F-1BMX P/NR01-2.5F-1BMX?
Key specifications for GT01-2.5F-1BMX P/NR01-2.5F-1BMX: Component Quantity: 6; Supply Items and Quantities: SEAT INSERT(1), DISK(1), SPRING(1), SPRING PIN(1), SEAT SEAL(1), ASSEMBLY RING(1). 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-606-0563 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.