The Cock,poppet Drain, cataloged under National Stock Number 4820-00-320-5328, 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2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4820-00-320-5328
Item Name
Cock,poppet Drain
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Flow Control Device
POPPET
Valve Operation Method
AUTOMATIC
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1280-00-337-6293POSSIBLE MATCH
GASKET,COVER,COMPUT
Possible match (shared part number)
5930-00-492-78629058BA1AND000182POSSIBLE MATCH
SWITCH ASSEMBLY
Possible match (shared part number)Linde Material Handling North America Corporation
5330-00-656-3024100031POSSIBLE MATCH
GASKET
Possible match (shared part number)Inspirnetics, Inc
5355-00-667-7991100031POSSIBLE MATCH
KNOB
Possible match (shared part number)Anchor Elastotech Llc
2520-00-784-9262POSSIBLE MATCH
ROD,CLUTCH PEDAL SH
Possible match (shared part number)
5330-00-854-7157EON-001000-03-01-1POSSIBLE MATCH
GASKET
Possible match (shared part number)Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division
4810-01-003-97208263B301POSSIBLE MATCH
VALVE,SOLENOID
Possible match (shared part number)Automatic Switch Company Dba Asco
5330-01-011-1554POSSIBLE MATCH
GASKET
Possible match (shared part number)
2590-01-218-2015POSSIBLE MATCH
CONTROL ASSEMBLY,PUSH-PULL
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
5712-38REVK
3/9Design control — primary reference
U.S. Government activity
10003-1
5/9Secondary reference
Northrop Pacific Inc Sub of Northrop Corp
Related Parts
1280-00-337-6293POSSIBLE MATCH
GASKET,COVER,COMPUT
5930-00-492-7862POSSIBLE MATCH
SWITCH ASSEMBLY
9058BA1AND000182
5330-00-656-3024POSSIBLE MATCH
GASKET
100031
5355-00-667-7991POSSIBLE MATCH
KNOB
100031
2520-00-784-9262POSSIBLE MATCH
ROD,CLUTCH PEDAL SH
5330-00-854-7157POSSIBLE MATCH
GASKET
EON-001000-03-01-1
4810-01-003-9720POSSIBLE MATCH
VALVE,SOLENOID
8263B301
5330-01-011-1554POSSIBLE MATCH
GASKET
2590-01-218-2015POSSIBLE MATCH
CONTROL ASSEMBLY,PUSH-PULL
Frequently Asked Questions
What is NSN 4820-00-320-5328?
NSN 4820-00-320-5328 is a Cock,poppet Drain, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-00-320-5328?
9 possible matches (shared part number, not a government interchangeability claim): 1280-00-337-6293, 5930-00-492-7862, 5330-00-656-3024. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-00-320-5328?
Key specifications for 4820-00-320-5328: Flow Control Device: POPPET; Valve Operation Method: AUTOMATIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-320-5328 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.