NSN 4820-00-978-2320 · NIIN 009782320 · Part number 8X0017-2
Elliott Company Div Jeannette · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 72957
Government record, cited
NSN 4820-00-978-2320 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-978-2320. Manufacturer of record part number: 8X0017-2.
Flange Seat to Disk End Height: 0.500 INCHES NOMINAL IN
Flange Diameter: 2.375 INCHES NOMINAL IN
Body Outside Diameter: 2.124 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
Style Designator: PLAIN FLANGED
Material Document and Classification: 17-4PH,ARMCO STEEL CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 1.248 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
Seat Radius: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
Identification
NSN: 4820-00-978-2320
NIIN: 009782320
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8X0017-2
Manufacturer: Elliott Company Div Jeannette
General Description
The Seat,valve, cataloged under National Stock Number 4820-00-978-2320, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Elliott Company Div Jeannette. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
4820-00-978-2320
Primary Part Number
8X0017-2
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Elliott Company Div Jeannette
Status
ACTIVE
Flange Seat to Disk End Height
0.500 INCHES NOMINAL IN
Flange Diameter
2.375 INCHES NOMINAL IN
Body Outside Diameter
2.124 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
Style Designator
PLAIN FLANGED
Material Document and Classification
17-4PH,ARMCO STEEL CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
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 4820-00-978-2320?
NSN 4820-00-978-2320 is a Seat,valve, manufactured by Elliott Company Div Jeannette, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-978-2320?
NSN 4820-00-978-2320 has 2 manufacturer part numbers on file: 8X0017-2 (Hlc Industries Inc), 8X0017-2 (Elliott Company Div Jeannette).
What are the specifications of 8X0017-2?
Key specifications for 8X0017-2: Flange Seat to Disk End Height: 0.500 INCHES NOMINAL IN; Flange Diameter: 2.375 INCHES NOMINAL IN; Body Outside Diameter: 2.124 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-978-2320 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.