NSN 4820-01-338-9770 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-338-9770. Manufacturer of record part number: 211068672.
The Stem,fluid Valve, cataloged under National Stock Number 4820-01-338-9770, 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 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-338-9770
Primary Part Number
211068672
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
2.937 INCHES NOMINAL IN
Stem Actuating End Type
FLATTED
Features Provided
KEYWAY
Valve Size for Which Designed
10.000 INCHES IN
Material
NICKEL 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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2030-01-434-1181211080349POSSIBLE MATCH
DRAG LINK,STEERING
Possible match (shared part number)Naval Sea Systems Command
4730-01-434-5499211078354POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Naval Sea Systems Command
4730-01-434-7971211033240POSSIBLE MATCH
ADAPTER,STRAIGHT,FLANGE TO PIPE
Possible match (shared part number)Naval Sea Systems Command
4730-01-434-7972211078358POSSIBLE MATCH
COUPLING,PIPE
Possible match (shared part number)Naval Sea Systems Command
4820-01-435-0482211033269POSSIBLE MATCH
PISTON,VALVE
Possible match (shared part number)Naval Sea Systems Command
3040-01-435-1423211069352POSSIBLE MATCH
CONNECTING LINK,RIGID
Possible match (shared part number)Naval Sea Systems Command
3040-01-435-1445211068683POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3040-01-435-1512211068684POSSIBLE MATCH
LEVER,REMOTE CONTROL
Possible match (shared part number)Naval Sea Systems Command
C/1Advisory reference — outside the item-of-supply concept
Naval Sea Systems Command
6405354
D/9Drawing number reference only
Naval Sea Systems Command
DF330725 FIND 50
5/9Secondary reference
Huntington Ingalls Inc Div Newport News Shipbuilding
Related Parts
2030-01-434-1181POSSIBLE MATCH
DRAG LINK,STEERING
211080349
4730-01-434-5499POSSIBLE MATCH
FLANGE,PIPE
211078354
4730-01-434-7971POSSIBLE MATCH
ADAPTER,STRAIGHT,FLANGE TO PIPE
211033240
4730-01-434-7972POSSIBLE MATCH
COUPLING,PIPE
211078358
4820-01-435-0482POSSIBLE MATCH
PISTON,VALVE
211033269
3040-01-435-1423POSSIBLE MATCH
CONNECTING LINK,RIGID
211069352
3040-01-435-1445POSSIBLE MATCH
SHAFT,SHOULDERED
211068683
3040-01-435-1512POSSIBLE MATCH
LEVER,REMOTE CONTROL
211068684
Frequently Asked Questions
What is NSN 4820-01-338-9770?
NSN 4820-01-338-9770 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 4820-01-338-9770?
NSN 4820-01-338-9770 has 2 manufacturer part numbers on file: 211068672 (Naval Sea Systems Command), 801-6405354 FIND 50 (Naval Sea Systems Command).
What NSN replaces 4820-01-338-9770?
8 possible matches (shared part number, not a government interchangeability claim): 2030-01-434-1181, 4730-01-434-5499, 4730-01-434-7971. Verify interchangeability with system specifications before substitution.
What are the specifications of 211068672?
Key specifications for 211068672: Valve Type for Which Designed: BALL; Largest Outside Diameter: 2.937 INCHES NOMINAL IN; Stem Actuating End Type: FLATTED; Overall Length: 14.970 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-338-9770 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.