General Characteristics Item Description: CORROSION RESISTING STEEL; 0.313 IN. MAX THICKNESS; 0.941 IN. ID; 1.714 MAX OD IN
Identification
NSN: 4820-01-246-6420
NIIN: 012466420
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Collar,stem Valve, cataloged under National Stock Number 4820-01-246-6420, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-246-6420
Item Name
Collar,stem Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
General Characteristics Item Description
CORROSION RESISTING STEEL; 0.313 IN. MAX THICKNESS; 0.941 IN. ID; 1.714 MAX OD IN
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-247-2660803-2177140 PC 2APOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-250-0030803-2177140-XX-15POSSIBLE MATCH
GUIDE,VALVE STEM
Possible match (shared part number)Naval Ship Systems Command
4820-01-533-4157P012-335590-G01 ITEM NO. 2POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
4820-01-533-4160P012-335590-G01 ITEM NO. 5POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Velan Valve Corp.
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
803-2177140 PC 3
3/2Design control — primary reference
U.S. Government activity
803-2177140
D/9Drawing number reference only
U.S. Government activity
Related Parts
4820-01-247-2660POSSIBLE MATCH
DISK,VALVE
803-2177140 PC 2A
4820-01-250-0030POSSIBLE MATCH
GUIDE,VALVE STEM
803-2177140-XX-15
4820-01-533-4157POSSIBLE MATCH
DISK,VALVE
P012-335590-G01 ITEM NO. 2
4820-01-533-4160POSSIBLE MATCH
STEM,FLUID VALVE
P012-335590-G01 ITEM NO. 5
Frequently Asked Questions
What is NSN 4820-01-246-6420?
NSN 4820-01-246-6420 is a Collar,stem Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-246-6420?
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-247-2660, 4820-01-250-0030, 4820-01-533-4157. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-246-6420?
Key specifications for 4820-01-246-6420: General Characteristics Item Description: CORROSION RESISTING STEEL; 0.313 IN. MAX THICKNESS; 0.941 IN. ID; 1.714 MAX OD IN; End Item Identification: 6625-00-167-5267. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-246-6420 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.