The Cylinder Assembly, cataloged under National Stock Number 3820-00-237-6766, is classified within Federal Supply Class 3820 (Mining, Rock Drilling, Earth Boring, and Related Equipment) of the Construction, Mining, Excavating Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3820-00-237-6766
Item Name
Cylinder Assembly
FSC / FSG
3820 / 38 — Mining, Rock Drilling, Earth Boring, and Related Equipment
Status
ACTIVE
General Characteristics Item Description
15.328 IN. O/A LG; 6.937 IN. OD; 4.500 IN. ID IN
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
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
A138210
3/9Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 3820 — Mining, Rock Drilling, Earth Boring, and Related Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3820-00-001-2056
3820-00-001-2056 · Item name not on file
3820-00-001-2057
MAST,WELL DRILLING
3820-00-003-5931
3820-00-003-5931 · Item name not on file
3820-00-003-5932
3820-00-003-5932 · Item name not on file
3820-00-003-9916
3820-00-003-9916 · Item name not on file
3820-00-005-2318
3820-00-005-2318 · Item name not on file
3820-00-005-8675
3820-00-005-8675 · Item name not on file
3820-00-007-9025
3820-00-007-9025 · Item name not on file
Frequently Asked Questions
What is NSN 3820-00-237-6766?
NSN 3820-00-237-6766 is a Cylinder Assembly, classified under FSC 3820, Mining, Rock Drilling, Earth Boring, and Related Equipment. Status: active.
What are the specifications of 3820-00-237-6766?
Key specifications for 3820-00-237-6766: General Characteristics Item Description: 15.328 IN. O/A LG; 6.937 IN. OD; 4.500 IN. ID IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 3820-00-237-6766 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.