PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9520646Piston,hydraulic Brake

Axillon Aerospace (rockmart), Llc · NSN 1630-00-031-4384 · FSC 1630 · No Item Name Available
Verified by PartsTable
NSN 1630-00-031-4384 — this item is cataloged by the U.S. Government under National Stock Number 1630-00-031-4384. Primary manufacturer part number: 9520646.
Features
  • Piston,hydraulic Brake — FSC 1630
  • Piston Cup: NOT INCLUDED
  • Size Designator: 2-3/8
  • Shoe Actuating End Type: RECESSED FOR STEEL INSERT
  • Material: MAGNESIUM ALLOY
  • FSC Application Data: BRAKE,DUAL DISK,ACFT
  • Surface Condition: EXTERNALLY GROOVED
  • Outside Diameter: 2.373 INCHES NOMINAL IN
Applications
  • Applications requiring Magnesium Alloy construction
General Description

The Piston,hydraulic Brake, cataloged under National Stock Number 1630-00-031-4384, is classified within Federal Supply Class 1630 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Axillon Aerospace (rockmart), Llc. Government technical data includes 10 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN1630-00-031-4384
Primary Part Number9520646
Item NamePiston,hydraulic Brake
FSC / FSG1630 / 16 — No Item Name Available
ManufacturerAxillon Aerospace (rockmart), Llc
StatusCANCELLED
Piston CupNOT INCLUDED
Size Designator2-3/8
Shoe Actuating End TypeRECESSED FOR STEEL INSERT
MaterialMAGNESIUM ALLOY
FSC Application DataBRAKE,DUAL DISK,ACFT
Surface ConditionEXTERNALLY GROOVED
Outside Diameter2.373 INCHES NOMINAL IN
Length1.771 INCHES NOMINAL IN
Groove Width0.354 INCHES NOMINAL IN
Groove Depth0.371 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5985-01-056-6390952064-6 INTERCHANGEABLE
Attenuator,fixed
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
9522166 Goodyear Tire and Rubber Co the (USA)
9520646 PRIMARY Axillon Aerospace (rockmart), Llc (USA)
9520646 Goodyear Tire and Rubber Co the (USA)
Related Parts
5985-01-056-6390INTERCHANGEABLE
ATTENUATOR,FIXED
952064-6

Frequently Asked Questions

What is NSN 1630-00-031-4384?

NSN 1630-00-031-4384 is a Piston,hydraulic Brake, manufactured by Axillon Aerospace (rockmart), Llc, classified under FSC 1630 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1630-00-031-4384?

NSN 1630-00-031-4384 has 3 cross-referenced part numbers: 9522166 (Goodyear Tire and Rubber Co the), 9520646 (Axillon Aerospace (rockmart), Llc), 9520646 (Goodyear Tire and Rubber Co the).

What NSN replaces 1630-00-031-4384?

There is 1 known substitute for 1630-00-031-4384: 5985-01-056-6390. Verify interchangeability with system specifications before substitution.

What are the specifications of 9520646?

Key specifications for 9520646: Piston Cup: NOT INCLUDED; Size Designator: 2-3/8; Shoe Actuating End Type: RECESSED FOR STEEL INSERT; Material: MAGNESIUM ALLOY. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 1630-00-031-4384 still in active supply?

NSN 1630-00-031-4384 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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