The Disk,valve, cataloged under National Stock Number 4820-01-169-9822, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-169-9822
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Outside Diameter
8.501 INCHES NOMINAL IN
Material
STEEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5331-01-173-0869506-5588396POSSIBLE MATCH
O-RING
Possible match (shared part number)Naval Ship Systems Command
4820-01-174-1307506-5588396 ASSY 99POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)Naval Sea Systems Command
4820-01-179-6448506-5588396 PART 16POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-187-1296506-5588396 PART 17POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Derbyshire Machine & Tool Co
5305-01-196-26492401442POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Fairbanks Morse, Llc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
506-5588396
D/9Drawing number reference only
U.S. Government activity
2401-442 PART 6
5/9Secondary reference
Huntington Ingalls Inc Div Newport News Shipbuilding
2401-442
D/9Drawing number reference only
Huntington Ingalls Inc Div Newport News Shipbuilding
506-5588396 PAR
C/1Advisory reference — outside the item-of-supply concept
Naval Sea Systems Command
506-5588396 PART 6
3/2Design control — primary reference
U.S. Government activity
Related Parts
5331-01-173-0869POSSIBLE MATCH
O-RING
506-5588396
4820-01-174-1307POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
506-5588396 ASSY 99
4820-01-179-6448POSSIBLE MATCH
STEM,FLUID VALVE
506-5588396 PART 16
4820-01-187-1296POSSIBLE MATCH
STEM,FLUID VALVE
506-5588396 PART 17
5305-01-196-2649POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
2401442
Frequently Asked Questions
What is NSN 4820-01-169-9822?
NSN 4820-01-169-9822 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-169-9822?
5 possible matches (shared part number, not a government interchangeability claim): 5331-01-173-0869, 4820-01-174-1307, 4820-01-179-6448. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-169-9822?
Key specifications for 4820-01-169-9822: Outside Diameter: 8.501 INCHES NOMINAL IN; Material: STEEL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-169-9822 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.