NSN 4820-01-643-2531 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-643-2531. Manufacturer of record part number: 4912K45.
Maximum Operating Temp: 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
Surface Treatment: CHROMATE
Material: COPPER ALLOY BODY
Material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT
2 manufacturer part numbers on file
Manufacturer of record: Rub Incorporated
Identification
NSN: 4820-01-643-2531
NIIN: 016432531
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 4912K45
Manufacturer: Rub Incorporated
General Description
The Valve,ball, cataloged under National Stock Number 4820-01-643-2531, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rub Incorporated. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
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 4820-01-643-2531?
NSN 4820-01-643-2531 is a Valve,ball, manufactured by Rub Incorporated, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-643-2531?
NSN 4820-01-643-2531 has 2 manufacturer part numbers on file: 4912K45 (Rub Incorporated), 4912K45 (Mcmaster-Carr Supply Co).
What are the specifications of 4912K45?
Key specifications for 4912K45: Maximum Operating Temp: 200.0 FAHRENHEIT SINGLE RESPONSE DEGF; Special Features: SCREWDRIVER HANDLE; Surface Treatment: CHROMATE; Part Name Assigned by Controlling Agency: MINIATURE CHROME-PLATED BRASS BALL VALVE. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-643-2531 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.