PartsTable TECHNICAL DATA SHEET
NSN 4820-01-237-0506Government record, cited

Disk, Valve4820-01-237-0506

NSN 4820-01-237-0506 · NIIN 012370506
FSC 4820 — Valves, Nonpowered · FSG 48 — Valves
Government record, cited
Also searched as  4820-01-237-0506 · 4820012370506 · NIIN 012370506 · 01-237-0506 · FSC 4820 Valves, Nonpowered · 1932-5A PIECE 3 · 1932-5-3 · 1932-5A
Nearby stock numbers  ·
Features
  • Disk,valve — FSC 4820
  • Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Taper Minor Diameter: 2.006 INCHES NOMINAL IN
  • Style Designator: SOLID WEDGE
  • Taper Major Diameter: 5.256 INCHES NOMINAL IN
  • Seat Angle: 45.0 DEGREES NOMINAL
  • Taper Length: 16.562 INCHES NOMINAL IN
  • Material: IRON
Identification
  • NSN: 4820-01-237-0506
  • NIIN: 012370506
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-237-0506, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-237-0506
Item NameDisk,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
StatusACTIVE
Pressure Rating150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Taper Minor Diameter2.006 INCHES NOMINAL IN
Style DesignatorSOLID WEDGE
Taper Major Diameter5.256 INCHES NOMINAL IN
Seat Angle45.0 DEGREES NOMINAL
Taper Length16.562 INCHES NOMINAL IN
MaterialIRON
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2990-01-237-27724W1846 POSSIBLE MATCH
MUFFLER,EXHAUST
Possible match (shared part number)Mitsubishi Caterpillar Forklift America, Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
1932-5A PIECE 3 3/2 Design control — primary reference
U.S. Government activity
1932-5-3 3/2 Design control — primary reference
U.S. Government activity
1932-5A D/9 Drawing number reference only
U.S. Government activity
Related Parts
2990-01-237-2772POSSIBLE MATCH
MUFFLER,EXHAUST
4W1846

Frequently Asked Questions

What is NSN 4820-01-237-0506?

NSN 4820-01-237-0506 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-237-0506?

1 possible match (shared part number, not a government interchangeability claim): 2990-01-237-2772. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-237-0506?

Key specifications for 4820-01-237-0506: Overall Height: 18.875 INCHES NOMINAL IN; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Taper Minor Diameter: 2.006 INCHES NOMINAL IN; Style Designator: SOLID WEDGE. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-237-0506 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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