The Block Assembly, cataloged under National Stock Number 3820-00-429-7952, is classified within Federal Supply Class 3820 (Mining, Rock Drilling, Earth Boring, and Related Equipment) of the Construction, Mining, Excavating Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
Block Assembly
FSC / FSG
3820 — Mining, Rock Drilling, Earth Boring, and Related Equipment (FSG 38)
Technical Specifications
Parameter
Value
NSN
3820-00-429-7952
Item Name
Block Assembly
FSC / FSG
3820 / 38 — Mining, Rock Drilling, Earth Boring, and Related Equipment
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5365-00-756-831069098POSSIBLE MATCH
SPACER,PLATE
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5950-00-853-783911837-404POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)The Boeing Company Div Legacy Boeing Hb1
3020-01-301-808169098POSSIBLE MATCH
GEAR,SPUR
Possible match (shared part number)Tractech Inc
6230-01-641-411769-098POSSIBLE MATCH
LIGHT,EXTENSION
Possible match (shared part number)Hydro-Test Products, Inc. Dba Hydro-Test Products Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
69098
3/9Design control — primary reference
Thor Power Tool Co Sub of Stewart-Warner Co
Related Parts
5365-00-756-8310POSSIBLE MATCH
SPACER,PLATE
69098
5950-00-853-7839POSSIBLE MATCH
TRANSFORMER,POWER
11837-404
3020-01-301-8081POSSIBLE MATCH
GEAR,SPUR
69098
6230-01-641-4117POSSIBLE MATCH
LIGHT,EXTENSION
69-098
Frequently Asked Questions
What is NSN 3820-00-429-7952?
NSN 3820-00-429-7952 is a Block Assembly, classified under FSC 3820, Mining, Rock Drilling, Earth Boring, and Related Equipment. Status: active.
What NSN replaces 3820-00-429-7952?
4 possible matches (shared part number, not a government interchangeability claim): 5365-00-756-8310, 5950-00-853-7839, 3020-01-301-8081. Verify interchangeability with system specifications before substitution.
Is NSN 3820-00-429-7952 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.