PartsTable TECHNICAL DATA SHEET
NSN 4820-01-503-1556Government record, cited

Stem, Fluid Valve4820-01-503-1556

NSN 4820-01-503-1556 · NIIN 015031556 · Part number 26520-HX-652
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 76364
Government record, cited
NSN 4820-01-503-1556 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-503-1556. Manufacturer of record part number: 26520-HX-652.
Also searched as  4820-01-503-1556 · 4820015031556 · NIIN 015031556 · 01-503-1556 · FSC 4820 Valves, Nonpowered · CAGE 76364 · 26520-HX-652 · 536A2001J112 PC 9 · 536A2 001J
Nearby stock numbers  ·
Features
  • Stem,fluid Valve — FSC 4820
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Identification
  • NSN: 4820-01-503-1556
  • NIIN: 015031556
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 26520-HX-652
  • Manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-503-1556, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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.

Catalog Facts
Item NameStem,fluid Valve
FSC / FSG4820 — Valves, Nonpowered (FSG 48)
ManufacturersMilwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (CAGE 76364)
Technical Specifications
ParameterValue
NSN4820-01-503-1556
Primary Part Number26520-HX-652
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerMilwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-503-155836106-H-650 POSSIBLE MATCH
GUIDE,VALVE STEM
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-503-156251204-H-652 POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-505-163036106-J-650 POSSIBLE MATCH
FLANGE,GLAND,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-505-167226521-JX-652 POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-505-194950101-J-650 POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-505-266351204-J-652 POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-505-4241536A2001J200 POSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Cross-Reference Index
Part NumberManufacturer
26520-HX-652 PRIMARY Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
536A2001J112 PC 9 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
Reference documents
ReferenceMeaning
536A2 001J D/9 Drawing number reference only
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Related Parts
4820-01-503-1558POSSIBLE MATCH
GUIDE,VALVE STEM
36106-H-650
4820-01-503-1562POSSIBLE MATCH
SEAT,VALVE
51204-H-652
4820-01-505-1630POSSIBLE MATCH
FLANGE,GLAND,VALVE
36106-J-650
4820-01-505-1672POSSIBLE MATCH
STEM,FLUID VALVE
26521-JX-652
4820-01-505-1949POSSIBLE MATCH
DISK,VALVE
50101-J-650
4820-01-505-2663POSSIBLE MATCH
SEAT,VALVE
51204-J-652
4820-01-505-4241POSSIBLE MATCH
VALVE,GLOBE
536A2001J200

Frequently Asked Questions

What is NSN 4820-01-503-1556?

NSN 4820-01-503-1556 is a Stem,fluid 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 4820-01-503-1556?

NSN 4820-01-503-1556 has 2 manufacturer part numbers on file: 26520-HX-652 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 536A2001J112 PC 9 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).

What NSN replaces 4820-01-503-1556?

7 possible matches (shared part number, not a government interchangeability claim): 4820-01-503-1558, 4820-01-503-1562, 4820-01-505-1630. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-503-1556 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.
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