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 | 131004-2verified |
|---|---|
| Preferred name | Cabin-altitude needle valveverified |
| IPC nomenclature | Valve assembly, needle, unit exchange itemverified |
| System | Air conditioning and pressurizationverified |
| Primary ATA chapter | 21verified |
| Lookup variants | 1310042, 131004 2verified |
| Aircraft and publication scope | Effectivity | Figure / item | Qty | Review |
|---|---|---|---|---|
| Hawker 800XP, 850XP, and 900XP with kit 140-9004 publication scope | 8277-8277,8279-8279,8283-8284 as printed in the IPC export | 21-30-05-10 / 280 | 1 | verified |
| Hawker 800XP, 850XP, and 900XP with kit 140-9004 publication scope | 8278-8278,8280-8282,8285-8400,8402-8420,8422-8433,8435-8445,8448-8999 as printed in the IPC export | 21-30-05-10B / 20 | 1 | verified |
| Hawker 800XP, 850XP, and 900XP with kit 140-9004 publication scope | 8401-8401,8421-8421,8434-8434,8447-8447 as printed in the IPC export | 21-30-05-10C / 15 | 1 | verified |
Cross-reference check
Relationships and limits.
- All three 131004-2 rows print quantity 1 and unit exchange status.
- The number spans the 10, 10B, and 10C figure variants.
- No replacement or alternate number is printed in the reviewed rows.
The IPC name does not describe adjustment, rigging, pressure schedule, or troubleshooting. Those tasks require the current applicable maintenance data.
Mechanic's lookup notes
Common questions about 131004-2.
What is Hawker part 131004-2?
The IPC calls it a needle-valve assembly. Maintenance tracking sources also describe the role as manual cabin-altitude control.
Is 131004-2 a unit exchange item?
Yes. Each of the three reviewed IPC rows marks it as a unit exchange item.
Does the IPC print a replacement for 131004-2?
No alternate or spares-replacement number appears in the reviewed 131004-2 rows.
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.
- Allaero needle-valve cross-referenceDistributor
Link checked 2026-08-21 | Lists 131004-2 as an alternate reference; use supplier cross-reference only as a sourcing lead
- Broadline Aviation 131004-2Distributor
Link checked 2026-08-21 | Exact-number RFQ listing for a needle air valve