PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AC421Chassis,electrical-Electronic Eq

Bud Industries Inc · NSN 5975-00-549-9431 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-549-9431 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-549-9431. Primary manufacturer part number: AC421.
Features
  • Chassis,electrical-Electronic Eq — FSC 5975
  • Mounting Hole Diameter: 0.219 INCHES IN
  • Mounting Facility Size: 0.219 IN. DIA IN
  • Mounting Hole Quantity: 4
  • Material Thickness: 0.040 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4
  • Color: ALUMINUM, NATURAL
  • Mounting Facility Spacing: 3.000 IN. C TO C IN
Applications
  • Applications requiring Aluminum Alloy 5005 construction
General Description

The Chassis,electrical-Electronic Eq, cataloged under National Stock Number 5975-00-549-9431, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Bud Industries Inc. Government technical data includes 13 verified specifications, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5975-00-549-9431
Primary Part NumberAC421
Item NameChassis,electrical-Electronic Eq
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerBud Industries Inc
StatusACTIVE
Mounting Hole Diameter0.219 INCHES IN
Mounting Facility Size0.219 IN. DIA IN
Mounting Hole Quantity4
Material Thickness0.040 INCHES NOMINAL IN
Mounting Facility Quantity4
ColorALUMINUM, NATURAL
Mounting Facility Spacing3.000 IN. C TO C IN
Component Mounting Facility Type and Quantity4 UNTHREADED HOLE
Design FeaturePUNCHED HOLES
Mounting ProvisionUNTHREADED HOLE
MaterialALUMINUM ALLOY 5005
Center to Center Distance Between Mounting Holes Along Width3.000 INCHES IN
Style DesignatorCLOSED ENDS AND SIDES FLANGED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3530-01-280-4265AC421 INTERCHANGEABLE
Case,bobbin,sewing Machine
Consolidated Sewing Machine Corp
Cross-Reference Index
Part NumberManufacturer
AC421 PRIMARY Bud Industries Inc (USA)
Related Parts
3530-01-280-4265INTERCHANGEABLE
CASE,BOBBIN,SEWING MACHINE
AC421

Frequently Asked Questions

What is NSN 5975-00-549-9431?

NSN 5975-00-549-9431 is a Chassis,electrical-Electronic Eq, manufactured by Bud Industries Inc, classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-00-549-9431?

NSN 5975-00-549-9431 has 1 cross-referenced part number: AC421 (Bud Industries Inc).

What NSN replaces 5975-00-549-9431?

There is 1 known substitute for 5975-00-549-9431: 3530-01-280-4265. Verify interchangeability with system specifications before substitution.

What are the specifications of AC421?

Key specifications for AC421: Overall Height: 3.000 INCHES NOMINAL IN; Mounting Hole Diameter: 0.219 INCHES IN; Overall Depth: 5.000 INCHES NOMINAL IN; Mounting Facility Size: 0.219 IN. DIA IN. 16 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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