PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25083Cover,gearbox

Mcculloch Corp · NSN 3820-01-061-4777 · FSC 3820 · No Item Name Available
Verified by PartsTable
NSN 3820-01-061-4777 — this item is cataloged by the U.S. Government under National Stock Number 3820-01-061-4777. Primary manufacturer part number: 25083.
Features
  • Cover,gearbox — FSC 3820
  • General Characteristics Item Description: ALUMINUM,ONE SIDE PAINTED YELLOW; 9.500 IN. DIA; 2.250 IN. H; 2.500 IN. BORE; EIGHT HOLES 0.250 IN. DIA ON A 8.875 IN. BOLT CIRCLE IN
  • 1 verified cross-reference
  • Primary manufacturer: Mcculloch Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cover,gearbox, cataloged under National Stock Number 3820-01-061-4777, is classified within Federal Supply Class 3820 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Mcculloch Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3820-01-061-4777
Primary Part Number25083
Item NameCover,gearbox
FSC / FSG3820 / 38 — No Item Name Available
ManufacturerMcculloch Corp
StatusACTIVE
General Characteristics Item DescriptionALUMINUM,ONE SIDE PAINTED YELLOW; 9.500 IN. DIA; 2.250 IN. H; 2.500 IN. BORE; EIGHT HOLES 0.250 IN. DIA ON A 8.875 IN. BOLT CIRCLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1680-00-181-116225083 INTERCHANGEABLE
Cover Assembly,control,door
Triumph Controls, Llc Dba Triumph Controls, Llc
5133-00-189-9313 INTERCHANGEABLE
Drill,twist
5950-00-785-65312041739 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4930-01-053-018425083 INTERCHANGEABLE
Ring,lock
Eaton Corporation Dba Eaton Inoac
4730-01-227-5483601-25-3053 INTERCHANGEABLE
Restrictor,fluid Flow
Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems
4130-01-414-634025083 INTERCHANGEABLE
Leaf,suction
Blissfield Manufacturing Company
6145-01-459-635225083 INTERCHANGEABLE
Cable,special Purpose,electrical
C and M Corp
4730-01-537-7759 INTERCHANGEABLE
Adapter,straight,tube to Hose
1095-01-598-598525083 INTERCHANGEABLE
Case,small Arms
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
25083 PRIMARY Mcculloch Corp (USA)
Related Parts
1680-00-181-1162INTERCHANGEABLE
COVER ASSEMBLY,CONTROL,DOOR
25083
5133-00-189-9313INTERCHANGEABLE
DRILL,TWIST
5950-00-785-6531INTERCHANGEABLE
TRANSFORMER,POWER
2041739
4930-01-053-0184INTERCHANGEABLE
RING,LOCK
25083
4730-01-227-5483INTERCHANGEABLE
RESTRICTOR,FLUID FLOW
601-25-3053
4130-01-414-6340INTERCHANGEABLE
LEAF,SUCTION
25083
6145-01-459-6352INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
25083
4730-01-537-7759INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
1095-01-598-5985INTERCHANGEABLE
CASE,SMALL ARMS
25083

Frequently Asked Questions

What is NSN 3820-01-061-4777?

NSN 3820-01-061-4777 is a Cover,gearbox, manufactured by Mcculloch Corp, classified under FSC 3820 (No Item Name Available). Status: active.

What are the part numbers for NSN 3820-01-061-4777?

NSN 3820-01-061-4777 has 1 cross-referenced part number: 25083 (Mcculloch Corp).

What NSN replaces 3820-01-061-4777?

There are 9 known substitutes for 3820-01-061-4777: 1680-00-181-1162, 5133-00-189-9313, 5950-00-785-6531 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25083?

Key specifications for 25083: General Characteristics Item Description: ALUMINUM,ONE SIDE PAINTED YELLOW; 9.500 IN. DIA; 2.250 IN. H; 2.500 IN. BORE; EIGHT HOLES 0.250 IN. DIA ON A 8.875 IN. BOLT CIRCLE IN. 1 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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