PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8221Brake Drum

Pdi Ground Support Systems, Inc. · NSN 2530-01-023-7406 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-01-023-7406 — this item is cataloged by the U.S. Government under National Stock Number 2530-01-023-7406. Primary manufacturer part number: 8221.
Features
  • Brake Drum — FSC 2530
  • Braking Surface Width: 2.855 INCHES NOMINAL IN
  • Cooling Fin: NOT INCLUDED
  • Material: STEEL OVERALL
  • Inspection Hole: NOT INCLUDED
  • Braking Surface Location: INTERNAL
  • Braking Surface Diameter: 7.015 INCHES NOMINAL IN
  • Balancing Pad: NOT INCLUDED
Applications
  • Applications requiring Steel Overall construction
General Description

The Brake Drum, cataloged under National Stock Number 2530-01-023-7406, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Pdi Ground Support Systems, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-01-023-7406
Primary Part Number8221
Item NameBrake Drum
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerPdi Ground Support Systems, Inc.
StatusCANCELLED
Braking Surface Width2.855 INCHES NOMINAL IN
Cooling FinNOT INCLUDED
MaterialSTEEL OVERALL
Inspection HoleNOT INCLUDED
Braking Surface LocationINTERNAL
Braking Surface Diameter7.015 INCHES NOMINAL IN
Balancing PadNOT INCLUDED
Adjustment HoleNOT INCLUDED
Oil Drain HoleNOT INCLUDED
Center Hole Diameter4.004 INCHES NOMINAL IN
Overall Outside Diameter7.403 INCHES NOMINAL IN
Mounting Hole SpacingEQUALLY SPACED ON 5.240 IN. BOLT CIRCLE IN
Mounting Hole Quantity5
Mounting Hole Diameter0.635 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5930-00-107-5442 INTERCHANGEABLE
Switch,push
3010-00-136-19698-221 INTERCHANGEABLE
Universal Joint,nonvehicular
Apex Tool Group, Llc
5962-00-146-3541NCS1603 INTERCHANGEABLE
Microcircuit,digital
Crane Electronics Inc
5935-00-149-398410A332 INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5930-00-243-2382 INTERCHANGEABLE
Adapter,switch Actuator
5950-00-387-57128221 INTERCHANGEABLE
Core,electromagnetic Component
Stackpole Corp the
2920-00-524-86171118839 INTERCHANGEABLE
Regulator,engine Generator
Borgwarner Pds (anderson), L.l.c.
6660-00-620-7870SMC279835 INTERCHANGEABLE
Indicator,wind Speed
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6150-01-032-99927000636-001 INTERCHANGEABLE
Bus,conductor
Circuit Components Inc.
5340-01-165-76868221 INTERCHANGEABLE
Standoff,threaded,spacing
Dialight Corporation
Cross-Reference Index
Part NumberManufacturer
9-10-903 Pdi Ground Support Systems, Inc. (USA)
8221 PRIMARY Pdi Ground Support Systems, Inc. (USA)
9-10-903 Savoy Mfg Inc (USA)
Related Parts
5930-00-107-5442INTERCHANGEABLE
SWITCH,PUSH
3010-00-136-1969INTERCHANGEABLE
UNIVERSAL JOINT,NONVEHICULAR
8-221
5962-00-146-3541INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
NCS1603
5935-00-149-3984INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
10A332
5930-00-243-2382INTERCHANGEABLE
ADAPTER,SWITCH ACTUATOR
5950-00-387-5712INTERCHANGEABLE
CORE,ELECTROMAGNETIC COMPONENT
8221
2920-00-524-8617INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
1118839
6660-00-620-7870INTERCHANGEABLE
INDICATOR,WIND SPEED
SMC279835
6150-01-032-9992INTERCHANGEABLE
BUS,CONDUCTOR
7000636-001
5340-01-165-7686INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8221
4330-01-174-3772INTERCHANGEABLE
FILTER ELEMENT,FLUID
P-5-3/4-100-RV3
4820-01-244-8332INTERCHANGEABLE
VALVE,GATE
380-1 PL671-C

Frequently Asked Questions

What is NSN 2530-01-023-7406?

NSN 2530-01-023-7406 is a Brake Drum, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-01-023-7406?

NSN 2530-01-023-7406 has 3 cross-referenced part numbers: 9-10-903 (Pdi Ground Support Systems, Inc.), 8221 (Pdi Ground Support Systems, Inc.), 9-10-903 (Savoy Mfg Inc).

What NSN replaces 2530-01-023-7406?

There are 12 known substitutes for 2530-01-023-7406: 5930-00-107-5442, 3010-00-136-1969, 5962-00-146-3541 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8221?

Key specifications for 8221: Overall Width: 3.049 INCHES NOMINAL IN; Braking Surface Width: 2.855 INCHES NOMINAL IN; Cooling Fin: NOT INCLUDED; Material: STEEL OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-01-023-7406 still in active supply?

NSN 2530-01-023-7406 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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