NSN 4820-01-689-8511 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-689-8511. Manufacturer of record part number: 9601004129.
Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Material: STEEL COMP 304 BODY
Valve Operation Method: AUTOMATIC
1 manufacturer part number on file
Manufacturer of record: Pilatus Aircraft Ltd
Identification
NSN: 4820-01-689-8511
NIIN: 016898511
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 9601004129
Manufacturer: Pilatus Aircraft Ltd
General Description
The Valve,check, cataloged under National Stock Number 4820-01-689-8511, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pilatus Aircraft Ltd. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
4820-01-689-8511
Primary Part Number
9601004129
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Pilatus Aircraft Ltd
Status
ACTIVE
Connection Type
FLANGE FIRST END
Operating Pressure
5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
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 4820-01-689-8511?
NSN 4820-01-689-8511 is a Valve,check, manufactured by Pilatus Aircraft Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-689-8511?
NSN 4820-01-689-8511 has 1 manufacturer part number on file: 9601004129 (Pilatus Aircraft Ltd).
What are the specifications of 9601004129?
Key specifications for 9601004129: Connection Type: FLANGE FIRST END; Operating Pressure: 5.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Part Name Assigned by Controlling Agency: VALVE,CHECK; End Item Identification: GROUND SUPPORT EQUIPMENT. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-689-8511 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.