Hawker 800XP Nose-Wheel Steering Part-Number Map

Published steering records by catalog role

Catalog role	Published number or family	Figure and item	Printed relationship or caution
Steering handwheel	25-6CX283A	32-50-00-05 item 15; 32-50-00-10 item 3	Detailed assembly row prints MOD 252905
Steering jack	AIR45396, AIR45396-5, AIR45396-6, AIR45396-7	32-20-00-30 item 185; 32-50-00-15 item 10	Alternate-spare and replacement wording depends on the figure
Steering filter records	AIR45412, AIR150414	32-50-00-15 items 65 and 75	Shared figure and CMM do not prove parent-child status
Steering valve	AIR45408, AIR45408-0	32-50-00-15 item 95	AIR45408 points forward to AIR45408-0
Relief valve	AIR48284, AIR48284-1, AIR48284-2	32-50-00-15 item 55	Two-step forward chain with an effectivity difference

The technical source supports the printed names, catalog locations, quantities, effectivity, and relationship wording discussed here.

Start with the catalog role, then check the exact number

A search for “Hawker steering valve” can lead to more than one valve record. AIR45408 is the steering valve. AIR48284 is a relief-valve assembly in the same steering breakdown. The names are not interchangeable, and the catalog map does not establish hydraulic flow between them.

The same rule applies to a search for “steering actuator.” The IPC name for the AIR45396 family is steering jack. Supplier listings may use actuator, servo assembly, or nose-leg steering jack. Use those descriptions to find a record, then use the exact data-plate number to identify it.

Handwheel assembly 25-6CX283A

25-6CX283A appears at two breakdown levels. Figure 32-50-00-05 item 15 identifies the handwheel assembly and points to Figure 32-50-00-10 for detail. The detailed row is item 3 and prints MOD 252905 plus CMM 32-50-05.

The repeated placement does not supply rigging or inspection data. It tells the researcher where the assembly sits in the catalog and which detailed figure follows it.

Steering-jack family AIR45396

The AIR45396 family needs a figure-specific read. The nose-gear figure groups AIR45396, AIR45396-6, and AIR45396-7 as alternate spares while printing different used-on parent assemblies. The steering breakdown directs AIR45396 and AIR45396-5 spares requests to AIR45396-7.

That difference is why the AIR45396 steering-jack replacement guide keeps the forward arrows and parent assemblies visible.

Filter assembly and element records

AIR45412 is the filter assembly at item 65. AIR150414 is the element at item 75. Both rows point to CMM 32-50-1109 for further spares and print the same effectivity.

The supplied export does not explicitly say AIR150414 is installed inside AIR45412. A parts researcher can keep the two records adjacent for lookup purposes, but a maintenance or purchasing statement about their parent-child relationship needs better source support.

Steering-valve pair AIR45408 and AIR45408-0

AIR45408 appears in the steering breakdown and an ATA 29 hydraulic figure. Both placements tell the reader to order AIR45408-0 for spares. AIR45408-0 is then printed as the spares replacement for AIR45408.

This is a clear forward replacement pair. The reviewed export does not print a later dash number or say the base number replaces AIR45408-0 in reverse.

Relief-valve chain AIR48284

The relief-valve sequence runs AIR48284 to AIR48284-1 to AIR48284-2. The first two rows exclude serial 8600. The AIR48284-2 row prints the continuous range 8266-8999.

The AIR48284 relief-valve replacement guide carries that serial difference through the full lookup. The source verifies the range change but does not explain its engineering reason.

What this map can and cannot do

Use this page to select the correct canonical record, retain the full dash number, locate the IPC figure and item, and see where the catalog prints an alternate or forward spares direction.

Do not use it to determine hydraulic flow, diagnose a steering complaint, rig the handwheel, set a relief pressure, service a filter, or release an aircraft. Those jobs require the applicable approved maintenance and component data.