NSN 4820-01-415-3164 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-415-3164. Manufacturer of record part number: 211055373.
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-415-3164, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-415-3164
Primary Part Number
211055373
Item Name
Stem,fluid Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Valve Type for Which Designed
BALL
Largest Outside Diameter
1.560 INCHES NOMINAL IN
Stem Actuating End Type
THREADED INTERNALLY
Valve Size for Which Designed
1.500 INCHES IN
Material
NICKEL ALLOY AND COPPER ALLOY
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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-415-3165556-6405334-AY70POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-3166211055410POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-3167211055386/211055410POSSIBLE MATCH
PARTS KIT,BALL VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-3170556-6405334-123POSSIBLE MATCH
RETAINER,SEAT,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-429-9922211045560,211036226POSSIBLE MATCH
PARTS KIT,BALL VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-499-1303556-6405334 ASSY.67POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)Naval Sea Systems Command
4820-01-499-1319556-6405334-176POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
NSN 4820-01-415-3164 is a Stem,fluid Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-415-3164?
NSN 4820-01-415-3164 has 2 manufacturer part numbers on file: 211055373 (Naval Sea Systems Command), 556-6405334-121 (Naval Sea Systems Command).
What NSN replaces 4820-01-415-3164?
7 possible matches (shared part number, not a government interchangeability claim): 4820-01-415-3165, 4820-01-415-3166, 4820-01-415-3167. Verify interchangeability with system specifications before substitution.
What are the specifications of 211055373?
Key specifications for 211055373: Valve Type for Which Designed: BALL; Largest Outside Diameter: 1.560 INCHES NOMINAL IN; Stem Actuating End Type: THREADED INTERNALLY; Overall Length: 6.220 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-415-3164 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.