NSN 4820-01-259-8873 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-259-8873. Manufacturer of record part number: RKN 81TT.
Nearby stock numbers← 4820-01-259-8872 Parts Kit, Pressure Regulating VA
·
4820-01-259-8896 Valve, Linear, Directional Control →
4820-01-259-8873 — Valves, Nonpowered
Features
Parts Kit,ball Valve — FSC 4820
Component Quantity: 5
Supply Items and Quantities: SEATS 2;BODY SEAL 1;STEM SEAL SET 1;SECONDARY SEAL SET 1
2 manufacturer part numbers on file
Manufacturer of record: Portland Valve Llc
Identification
NSN: 4820-01-259-8873
NIIN: 012598873
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: RKN 81TT
Manufacturer: Portland Valve Llc
General Description
The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-259-8873, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Portland Valve Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-259-8873
Primary Part Number
RKN 81TT
Item Name
Parts Kit,ball Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Portland Valve Llc
Status
ACTIVE
Component Quantity
5
Supply Items and Quantities
SEATS 2;BODY SEAL 1;STEM SEAL SET 1;SECONDARY SEAL SET 1
C/1Advisory reference — outside the item-of-supply concept
Metso Automation Usa, Inc
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 4820-01-259-8873?
NSN 4820-01-259-8873 is a Parts Kit,ball Valve, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-259-8873?
NSN 4820-01-259-8873 has 2 manufacturer part numbers on file: RKN 81TT (Simco Supply Co Inc), RKN 81TT (Portland Valve Llc).
What are the specifications of RKN 81TT?
Key specifications for RKN 81TT: Component Quantity: 5; Supply Items and Quantities: SEATS 2;BODY SEAL 1;STEM SEAL SET 1;SECONDARY SEAL SET 1. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-259-8873 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.