PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CP42Drill,pneumatic,sinker

Chicago Pneumatic Tool Co · NSN 3820-00-389-7785 · FSC 3820 · No Item Name Available
Verified by PartsTable
NSN 3820-00-389-7785 — this item is cataloged by the U.S. Government under National Stock Number 3820-00-389-7785. Primary manufacturer part number: CP42.
Features
  • Drill,pneumatic,sinker — FSC 3820
  • Usage Design: DRY
  • Width Across Flats: 1.000 INCHES NOMINAL IN
  • Rod Shank Type: COLLARED
  • Rod Shank Cross-Sectional Shape: HEXAGONAL
  • Nondefinitive Spec/std Data: 3 CLASS
  • Rod Shank Length: 4.250 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Drill,pneumatic,sinker, cataloged under National Stock Number 3820-00-389-7785, is classified within Federal Supply Class 3820 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Chicago Pneumatic Tool Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3820-00-389-7785
Primary Part NumberCP42
Item NameDrill,pneumatic,sinker
FSC / FSG3820 / 38 — No Item Name Available
ManufacturerChicago Pneumatic Tool Co
StatusACTIVE
Usage DesignDRY
Width Across Flats1.000 INCHES NOMINAL IN
Rod Shank TypeCOLLARED
Rod Shank Cross-Sectional ShapeHEXAGONAL
Nondefinitive Spec/std Data3 CLASS
Rod Shank Length4.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3820-00-020-5300WS45 INTERCHANGEABLE
Drill,pneumatic,sinker
Curtiss-Wright Electro-Mechanical Corporation Div Epd
3820-00-275-2610 INTERCHANGEABLE
Drill,pneumatic,sinker
3820-00-275-2614 INTERCHANGEABLE
Drill,pneumatic,sinker
3820-00-275-2615 INTERCHANGEABLE
Drill,pneumatic,sinker
3820-00-383-3718APT22D INTERCHANGEABLE
Drill,pneumatic,sinker
Industrial Power Tool & Repair Incorporated
3820-00-410-4439 INTERCHANGEABLE
Drill,pneumatic,sinker
3820-00-688-9995 INTERCHANGEABLE
Drill,pneumatic,sinker
3820-00-917-7822G45-1 INTERCHANGEABLE
Drill,pneumatic,sinker
Dana Off Highway Products, Llc
3820-00-935-7808 INTERCHANGEABLE
Drill,pneumatic,sinker
5975-01-172-23155075S INTERCHANGEABLE
Coupling,electrical Conduit
Egs Electrical Group Appleton Div
Cross-Reference Index
Part NumberManufacturer
CP42 Chicago Pneumatic Tool Co (USA)
CP42 Chicago Pneumatic Tool Co (USA)
MIL-D-52121 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3820-00-020-5300INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
WS45
3820-00-275-2610INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
3820-00-275-2614INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
3820-00-275-2615INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
3820-00-383-3718INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
APT22D
3820-00-410-4439INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
3820-00-688-9995INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
3820-00-917-7822INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
G45-1
3820-00-935-7808INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
5975-01-172-2315INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
5075S
3820-01-330-9339INTERCHANGEABLE
DRILL,PNEUMATIC,SINKER
50896406

Frequently Asked Questions

What is NSN 3820-00-389-7785?

NSN 3820-00-389-7785 is a Drill,pneumatic,sinker, manufactured by Chicago Pneumatic Tool Co, classified under FSC 3820 (No Item Name Available). Status: active.

What are the part numbers for NSN 3820-00-389-7785?

NSN 3820-00-389-7785 has 3 cross-referenced part numbers: CP42 (Chicago Pneumatic Tool Co), CP42 (Chicago Pneumatic Tool Co), MIL-D-52121 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3820-00-389-7785?

There are 11 known substitutes for 3820-00-389-7785: 3820-00-020-5300, 3820-00-275-2610, 3820-00-275-2614 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CP42?

Key specifications for CP42: Usage Design: DRY; Width Across Flats: 1.000 INCHES NOMINAL IN; Weight: 55.0 POUNDS NOMINAL LBS; Rod Shank Type: COLLARED. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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