NSN 4820-01-123-3929 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-123-3929. Manufacturer of record part number: 803-4385050 PIECE 68.
General Characteristics Item Description: CONSISTS OF 1 INSERT,BODY; 2 SHIMS
1 manufacturer part number on file
Manufacturer of record: Hunt Valve Company, Inc.
Identification
NSN: 4820-01-123-3929
NIIN: 011233929
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 803-4385050 PIECE 68
Manufacturer: Hunt Valve Company, Inc.
General Description
The Insert,body,assembly,valve, cataloged under National Stock Number 4820-01-123-3929, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-123-3929
Primary Part Number
803-4385050 PIECE 68
Item Name
Insert,body,assembly,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Hunt Valve Company, Inc.
Status
ACTIVE
General Characteristics Item Description
CONSISTS OF 1 INSERT,BODY; 2 SHIMS
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
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.
4820-01-148-2847803-4385050 ASSY TAPOSSIBLE MATCH
TOOL SET,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-238-6079POSSIBLE MATCH
INSERT,BODY,VALVE
Possible match (shared part number)
4820-01-386-2182803-4385050 PIECE 106POSSIBLE MATCH
RING,INCATOR,VALVE OPENING
Possible match (shared part number)Naval Ship Systems Command
4820-01-422-5108POSSIBLE MATCH
TAILPIECE,VALVE
Possible match (shared part number)
3120-01-550-8881POSSIBLE MATCH
BEARING,WASHER,THRUST
Possible match (shared part number)
5310-01-659-4539803-4385050-12POSSIBLE MATCH
NUT,PLAIN,ROUND
Possible match (shared part number)Naval Ship Systems Command
NSN 4820-01-123-3929 is a Insert,body,assembly,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-123-3929?
NSN 4820-01-123-3929 has 1 manufacturer part number on file: 803-4385050 PIECE 68 (Hunt Valve Company, Inc.).
What NSN replaces 4820-01-123-3929?
7 possible matches (shared part number, not a government interchangeability claim): 4820-01-148-2847, 4820-01-238-6079, 4820-01-386-2182. Verify interchangeability with system specifications before substitution.
What are the specifications of 803-4385050 PIECE 68?
Key specifications for 803-4385050 PIECE 68: General Characteristics Item Description: CONSISTS OF 1 INSERT,BODY; 2 SHIMS. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-123-3929 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.
What is the DEMIL code for NSN 4820-01-123-3929?
NSN 4820-01-123-3929 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.