PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31121Shroud,fan,axial

Generac Mobile Products, Llc · NSN 4140-01-649-4937 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-649-4937 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-649-4937. Primary manufacturer part number: 31121.
Features
  • Shroud,fan,axial — FSC 4140
  • 1 verified cross-reference
  • Primary manufacturer: Generac Mobile Products, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Shroud,fan,axial, cataloged under National Stock Number 4140-01-649-4937, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Generac Mobile Products, Llc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameShroud,fan,axial
FSC / FSG4140 — No Item Name Available (FSG 41)
ManufacturersGenerac Mobile Products, Llc (CAGE 0SUA9)
Technical Specifications
ParameterValue
NSN4140-01-649-4937
Primary Part Number31121
Item NameShroud,fan,axial
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerGenerac Mobile Products, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1630-00-050-2904 INTERCHANGEABLE
Wheel,landing Gear
4510-00-167-0409 INTERCHANGEABLE
Faucet,double
5315-00-222-71415315H23-000 INTERCHANGEABLE
Pin,straight,headless
Us Army Aviation and Missile Command
6730-00-396-3514 INTERCHANGEABLE
Leg,projector
5985-00-598-46493112-1 INTERCHANGEABLE
Waveguide Assembly
General Microwave Corporation Div Kratos Microwave Electronics
1630-00-764-4792 INTERCHANGEABLE
Wheel,landing Gear
3020-00-858-050731121 INTERCHANGEABLE
Gear,worm Wheel
Integral Aerospace, Llc Dba Pcx Aerosystems - Santa Ana Div Integral Aerospace, Llc Dba Pcx Aerosystems - Santa Ana
4820-01-239-992531121 INTERCHANGEABLE
Seat,valve
Pneudraulics, Inc.
5930-01-248-454731-121 INTERCHANGEABLE
Switch,push
Eao Switch Corporation
3020-01-377-7455 INTERCHANGEABLE
Gear,internal
Cross-Reference Index
Part NumberManufacturer
31121 PRIMARY Generac Mobile Products, Llc (USA)
Related Parts
1630-00-050-2904INTERCHANGEABLE
WHEEL,LANDING GEAR
4510-00-167-0409INTERCHANGEABLE
FAUCET,DOUBLE
5315-00-222-7141INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315H23-000
6730-00-396-3514INTERCHANGEABLE
LEG,PROJECTOR
5985-00-598-4649INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
3112-1
1630-00-764-4792INTERCHANGEABLE
WHEEL,LANDING GEAR
3020-00-858-0507INTERCHANGEABLE
GEAR,WORM WHEEL
31121
4820-01-239-9925INTERCHANGEABLE
SEAT,VALVE
31121
5930-01-248-4547INTERCHANGEABLE
SWITCH,PUSH
31-121
3020-01-377-7455INTERCHANGEABLE
GEAR,INTERNAL
6515-01-417-8014INTERCHANGEABLE
TAP,BONE SCREW
311.21
6910-01-590-4579INTERCHANGEABLE
GAUZE,INERT,MOULAGE TRAINER
273

Frequently Asked Questions

What is NSN 4140-01-649-4937?

NSN 4140-01-649-4937 is a Shroud,fan,axial, manufactured by Generac Mobile Products, Llc, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-649-4937?

NSN 4140-01-649-4937 has 1 cross-referenced part number: 31121 (Generac Mobile Products, Llc).

What NSN replaces 4140-01-649-4937?

There are 12 known substitutes for 4140-01-649-4937: 1630-00-050-2904, 4510-00-167-0409, 5315-00-222-7141 and 9 more. Verify interchangeability with system specifications before substitution.

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