PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

304-122Overload Module,air

Ajax Tocco Magnethermic Corp · NSN 4920-01-573-4273 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-573-4273 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-573-4273. Primary manufacturer part number: 304-122.
Features
  • Overload Module,air — FSC 4920
  • 4 verified cross-references
  • Primary manufacturer: Ajax Tocco Magnethermic Corp
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Overload Module,air, cataloged under National Stock Number 4920-01-573-4273, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Ajax Tocco Magnethermic Corp. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameOverload Module,air
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersRisk Industries Llc Dba Pines Technology Div Headquarters (CAGE 4RPC2); Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering (CAGE 74QK6); Ajax Tocco Magnethermic Corp (CAGE 01179); Square D Co Leeds Mfg Plant (CAGE 04429)
Technical Specifications
ParameterValue
NSN4920-01-573-4273
Primary Part Number304-122
Item NameOverload Module,air
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerAjax Tocco Magnethermic Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1420-00-925-8527304122 INTERCHANGEABLE
Retainer,snap Ring
Eaton Aerospace, Llc Dba Jackson South
1630-00-967-677867A29843-10 INTERCHANGEABLE
Parts Kit,brake,ove
Ogden Air Logistics Center
4920-01-571-8228 INTERCHANGEABLE
Overload Module,air
Cross-Reference Index
Part NumberManufacturer
304-122 Risk Industries Llc Dba Pines Technology Div Headquarters (USA)
304-122 Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering (USA)
304-122 PRIMARY Ajax Tocco Magnethermic Corp (USA)
LUCA12BL Square D Co Leeds Mfg Plant (USA)
Related Parts
1420-00-925-8527INTERCHANGEABLE
RETAINER,SNAP RING
304122
1630-00-967-6778INTERCHANGEABLE
PARTS KIT,BRAKE,OVE
67A29843-10
4920-01-571-8228INTERCHANGEABLE
OVERLOAD MODULE,AIR

Frequently Asked Questions

What is NSN 4920-01-573-4273?

NSN 4920-01-573-4273 is a Overload Module,air, manufactured by Ajax Tocco Magnethermic Corp, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-573-4273?

NSN 4920-01-573-4273 has 4 cross-referenced part numbers: 304-122 (Risk Industries Llc Dba Pines Technology Div Headquarters), 304-122 (Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering), 304-122 (Ajax Tocco Magnethermic Corp), LUCA12BL (Square D Co Leeds Mfg Plant).

What NSN replaces 4920-01-573-4273?

There are 3 known substitutes for 4920-01-573-4273: 1420-00-925-8527, 1630-00-967-6778, 4920-01-571-8228. Verify interchangeability with system specifications before substitution.

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