NSN 4820-01-374-3090 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-374-3090. Manufacturer of record part number: 3659-R-160.
Manufacturer of record: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Identification
NSN: 4820-01-374-3090
NIIN: 013743090
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3659-R-160
Manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
General Description
The Flange,gland,valve, cataloged under National Stock Number 4820-01-374-3090, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Flange,gland,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Floworks Usa Lp Dba Flotech Div Jacksonville (CAGE 62650); Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (CAGE 76364)
Technical Specifications
Parameter
Value
NSN
4820-01-374-3090
Primary Part Number
3659-R-160
Item Name
Flange,gland,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-374-31264346-S-180 2INPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-374-560310015M-OP-2INPOSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Floworks Usa Lp Dba Flotech Div Jacksonville
4820-01-374-852851150-S-181 2INPOSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-374-852951150-SP-184 6 INPOSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-374-858410015M-OP-6INPOSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Floworks Usa Lp Dba Flotech Div Jacksonville
5330-01-376-66833659-R-160 6INPOSSIBLE MATCH
PACKING MATERIAL
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
Reference documents
Reference
Meaning
10015M-OP
D/9Drawing number reference only
Floworks Usa Lp Dba Flotech Div Jacksonville
3659-R
D/9Drawing number reference only
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Related Parts
4820-01-374-3126POSSIBLE MATCH
DISK,VALVE
4346-S-180 2IN
4820-01-374-5603POSSIBLE MATCH
VALVE,GATE
10015M-OP-2IN
4820-01-374-8528POSSIBLE MATCH
SEAT,VALVE
51150-S-181 2IN
4820-01-374-8529POSSIBLE MATCH
SEAT,VALVE
51150-SP-184 6 IN
4820-01-374-8584POSSIBLE MATCH
VALVE,GATE
10015M-OP-6IN
5330-01-376-6683POSSIBLE MATCH
PACKING MATERIAL
3659-R-160 6IN
Frequently Asked Questions
What is NSN 4820-01-374-3090?
NSN 4820-01-374-3090 is a Flange,gland,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-374-3090?
NSN 4820-01-374-3090 has 3 manufacturer part numbers on file: 10015M-OP PART 3 2IN (Floworks Usa Lp Dba Flotech Div Jacksonville), 3659-R-160 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 3659-R-160 2IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
What NSN replaces 4820-01-374-3090?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-374-3126, 4820-01-374-5603, 4820-01-374-8528. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-374-3090 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.