IPC record
Identity and application.
The reviewed catalog row establishes the part identity and its location in the combined Hawker IPC. It does not establish the condition of a particular unit or approve that unit for installation.
| Part number | PAS129-163verified |
|---|---|
| Preferred name | Hydraulic pressure-reducing valveverified |
| IPC nomenclature | Valve assembly, reducingverified |
| System | Hydraulic powerverified |
| Primary ATA chapter | 29verified |
| Lookup variants | PAS129163, PAS129/163verified |
| Aircraft and publication scope | Effectivity | Figure / item | Qty | Review |
|---|---|---|---|---|
| Hawker 800XP, 850XP, and 900XP with kit 140-9004 publication scope | 8266-8400,8402-8420,8422-8433,8435-8445,8448-8999 as printed in the IPC export | 29-10-05-40 / 205 | 1 | verified |
Cross-reference check
Relationships and limits.
- PAS129-163 has one IPC placement and references CMM 29-10-01.
- It is separate from Mark 3 reducing valve AC61518 and pressure-maintaining valve AIR45474-0.
The catalog does not print an alternate number or regulating pressure. The supplier must confirm the exact part, condition, test status, and documentation for the aircraft configuration.
Mechanic's lookup notes
Common questions about PAS129-163.
Is PAS129-163 a reducing valve or pressure regulator?
The IPC says reducing-valve assembly. Fleet records use pressure regulator for the installed position.
Which serials are excluded from the PAS129-163 row?
The printed range omits 8401, 8421, 8434, and 8447.
Long-form context
Technical guides that use this record.
Technical sources
Hawker 800XP, 850XP and 900XP Illustrated Parts CatalogTextron Aviation
- Document
- IPC-800XP
- Revision
- A0
- Published
- 2026-02-05
- Supports
- Part identities, nomenclature, figure and item references, quantity, effectivity, and relationship language as printed in the supplied IPC export.
Purchase or request quotes
Open a supplier or RFQ source below. Confirm effectivity, traceability, certification, condition, price, and current availability directly with the source.
- WBParts PAS129-163Distributor
Link checked 2026-08-21 | Exact-number reducing-valve RFQ page
- Allaero Hawker 800XP and 850XP inventoryDistributor
Link checked 2026-08-21 | Search the exact valve number and confirm current status