The Stop,valve, cataloged under National Stock Number 4820-01-220-9252, 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1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-220-9252
Item Name
Stop,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
General Characteristics Item Description
NICKEL
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.
3120-01-517-4900845-4558795 ITEM 96POSSIBLE MATCH
BEARING,WASHER,THRUST
Possible match (shared part number)Naval Sea Systems Command
3120-01-517-4902845-4558795 ITEM 95POSSIBLE MATCH
BEARING,WASHER,THRUST
Possible match (shared part number)Naval Sea Systems Command
5365-01-526-78652642-857-02 ITEM 17POSSIBLE MATCH
SPACER,SLEEVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
5365-01-526-78702642-857-02 ITEM 18POSSIBLE MATCH
SPACER,SLEEVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
845-4558795 ITEM 90
5/2Secondary reference
U.S. Government activity
264080902-0009
3/2Design control — primary reference
U.S. Government activity
2640-809X2
D/9Drawing number reference only
U.S. Government activity
845-4558795
D/9Drawing number reference only
U.S. Government activity
Related Parts
3120-01-517-4900POSSIBLE MATCH
BEARING,WASHER,THRUST
845-4558795 ITEM 96
3120-01-517-4902POSSIBLE MATCH
BEARING,WASHER,THRUST
845-4558795 ITEM 95
5365-01-526-7865POSSIBLE MATCH
SPACER,SLEEVE
2642-857-02 ITEM 17
5365-01-526-7870POSSIBLE MATCH
SPACER,SLEEVE
2642-857-02 ITEM 18
Frequently Asked Questions
What is NSN 4820-01-220-9252?
NSN 4820-01-220-9252 is a Stop,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-220-9252?
4 possible matches (shared part number, not a government interchangeability claim): 3120-01-517-4900, 3120-01-517-4902, 5365-01-526-7865. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-220-9252?
Key specifications for 4820-01-220-9252: General Characteristics Item Description: NICKEL. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-220-9252 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.