The Disk,valve, cataloged under National Stock Number 4820-01-511-6273, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-511-6273
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
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.
4320-01-516-8267803-1385789TYB-3IN PIECE 5POSSIBLE MATCH
DEFLECTOR,DIRT AND LIQUID
Possible match (shared part number)Naval Ship Systems Command
4820-01-516-8277803-1385789TYB-3IN PIECE 8POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-516-8281803-1385789TYPB-3IN PIECE 6POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
4730-01-520-39591385789 PC.3(1-1/2 INCH DIA)POSSIBLE MATCH
STRAINER ELEMENT,SEDIMENT
Possible match (shared part number)Naval Ship Systems Command
4730-01-520-39821385789 PC. NO. 3-2-INCHPOSSIBLE MATCH
STRAINER ELEMENT,SEDIMENT
Possible match (shared part number)Naval Ship Systems Command
5305-01-545-8593803-1385789PC9POSSIBLE MATCH
SCREW,MACHINE
Possible match (shared part number)Naval Ship Systems Command
4820-01-547-2839803-1385789TYG 2IN SH 7 PC NO 6POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
4510-01-658-96211385789POSSIBLE MATCH
STRAINER,WASTE DRAIN
Possible match (shared part number)Naval Ship Systems Command
2040-01-687-6107D3BK309-S97POSSIBLE MATCH
DRAIN KIT,DECK
Possible match (shared part number)Loeffler Corp
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
1385789
D/9Drawing number reference only
U.S. Government activity
803-1385789TYPEA PC 6 2 1/2 IN
3/2Design control — primary reference
U.S. Government activity
Related Parts
4320-01-516-8267POSSIBLE MATCH
DEFLECTOR,DIRT AND LIQUID
803-1385789TYB-3IN PIECE 5
4820-01-516-8277POSSIBLE MATCH
STEM,FLUID VALVE
803-1385789TYB-3IN PIECE 8
4820-01-516-8281POSSIBLE MATCH
DISK,VALVE
803-1385789TYPB-3IN PIECE 6
4730-01-520-3959POSSIBLE MATCH
STRAINER ELEMENT,SEDIMENT
1385789 PC.3(1-1/2 INCH DIA)
4730-01-520-3982POSSIBLE MATCH
STRAINER ELEMENT,SEDIMENT
1385789 PC. NO. 3-2-INCH
5305-01-545-8593POSSIBLE MATCH
SCREW,MACHINE
803-1385789PC9
4820-01-547-2839POSSIBLE MATCH
DISK,VALVE
803-1385789TYG 2IN SH 7 PC NO 6
4510-01-658-9621POSSIBLE MATCH
STRAINER,WASTE DRAIN
1385789
2040-01-687-6107POSSIBLE MATCH
DRAIN KIT,DECK
D3BK309-S97
Frequently Asked Questions
What is NSN 4820-01-511-6273?
NSN 4820-01-511-6273 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-511-6273?
9 possible matches (shared part number, not a government interchangeability claim): 4320-01-516-8267, 4820-01-516-8277, 4820-01-516-8281. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-511-6273?
Key specifications for 4820-01-511-6273: Special Features: MATERIAL:BRONZE (MIL-B-16541); Part Name Assigned by Controlling Agency: DECK DRAIN; End Item Identification: E/I:DISC,VALVE. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-511-6273 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.