PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

840-409-042Cover,gear End

Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions · NSN 4310-01-305-9878 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-01-305-9878 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-305-9878. Primary manufacturer part number: 840-409-042.
Features
  • Cover,gear End — FSC 4310
  • General Characteristics Item Description: IRON,DUCTILE; OVAL SHAPED; O/A H 4.750 IN.; FLANGED,0.500 IN. THK; W/OFF CENTERED HOLE 5.500 IN. DIA IN
  • 4 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Cover,gear End, cataloged under National Stock Number 4310-01-305-9878, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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
NSN4310-01-305-9878
Primary Part Number840-409-042
Item NameCover,gear End
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Div Fleet Solutions
StatusACTIVE
General Characteristics Item DescriptionIRON,DUCTILE; OVAL SHAPED; O/A H 4.750 IN.; FLANGED,0.500 IN. THK; W/OFF CENTERED HOLE 5.500 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2915-00-088-557915919 INTERCHANGEABLE
Inlet,compressor
Williams International Co., L.l.c.
4820-00-202-5632 INTERCHANGEABLE
Valve,safety Relief
5320-00-247-24742R2-6-8 INTERCHANGEABLE
Pin-Rivet
The Boeing Company Div Legacy Am&m
3040-01-009-381401009403 INTERCHANGEABLE
Lever,manual Control
Orscheln Products Llc
4730-01-166-2239H15919-1210W INTERCHANGEABLE
Reducer,tube
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
4140-01-260-79342R768 INTERCHANGEABLE
Impeller,fan,centrifugal
W.w. Grainger, Inc. Div Government Sales Division
5133-01-399-0707 INTERCHANGEABLE
Drill,twist
5998-01-544-534415919 INTERCHANGEABLE
Circuit Card Assembly
Pc Corner Computer Center , Llc
8145-01-562-242717675-3100 INTERCHANGEABLE
Shipping and Storag
Hardigg Industries, Llc Div Hardigg Cases
Cross-Reference Index
Part NumberManufacturer
840-409-042 PRIMARY Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions (USA)
15919 PRIMARY Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA)
2R-768 Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA)
2R-768 PIECE 1 Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA)
Related Parts
2915-00-088-5579INTERCHANGEABLE
INLET,COMPRESSOR
15919
4820-00-202-5632INTERCHANGEABLE
VALVE,SAFETY RELIEF
5320-00-247-2474INTERCHANGEABLE
PIN-RIVET
2R2-6-8
3040-01-009-3814INTERCHANGEABLE
LEVER,MANUAL CONTROL
01009403
4730-01-166-2239INTERCHANGEABLE
REDUCER,TUBE
H15919-1210W
4140-01-260-7934INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
2R768
5133-01-399-0707INTERCHANGEABLE
DRILL,TWIST
5998-01-544-5344INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
15919
8145-01-562-2427INTERCHANGEABLE
SHIPPING AND STORAG
17675-3100

Frequently Asked Questions

What is NSN 4310-01-305-9878?

NSN 4310-01-305-9878 is a Cover,gear End, manufactured by Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-01-305-9878?

NSN 4310-01-305-9878 has 4 cross-referenced part numbers: 840-409-042 (Curtiss-Wright Electro-Mechanical Corp Div Fleet Solutions), 15919 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R-768 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R-768 PIECE 1 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots).

What NSN replaces 4310-01-305-9878?

There are 9 known substitutes for 4310-01-305-9878: 2915-00-088-5579, 4820-00-202-5632, 5320-00-247-2474 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 840-409-042?

Key specifications for 840-409-042: General Characteristics Item Description: IRON,DUCTILE; OVAL SHAPED; O/A H 4.750 IN.; FLANGED,0.500 IN. THK; W/OFF CENTERED HOLE 5.500 IN. DIA 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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