Why 'in stock' rarely means shipping today
How many times this month did a supplier tell you a part was in stock, then go quiet the moment you asked when it could ship?
The pattern is all too familiar. A listing shows the part number as available, so you start making calls. By the third supplier, one has stopped responding to emails, another promises a quote in two to three business days, and the last is still "checking with the warehouse" for a callback that never comes.
Buyers have stopped trusting the word "in stock" from any supplier they haven't already tested. It’s not surprising, given how the industry actually works.
The industry runs on ghost listings
A lot of aviation sites show inventory that was last accurate months ago. Suppliers list part numbers they used to have, distributors have long OEM lead times, and the trail usually ends at a broker's spreadsheet that hasn't been reconciled in a quarter.
Sometimes it goes a step further. Companies list catalogs without a real distributorship in place. On the rotable side, some sellers list material from airframes they don’t own, then scramble to locate it only after a buyer asks for it.
By the time your PO gets confirmed, the "in stock" tag doesn't hold up.
Buyers already work around this by keeping a private list of suppliers they actually trust. The trusted names get called first, new names get tested with small orders, and no critical AOG plan hinges on a "same-day" claim from someone unproven.
What "on the shelf" should mean
When a supplier says a part number is in stock, three things should be verifiable on a single phone call:
The part is physically at the supplier's facility, right now
Someone on the sales team can confirm the condition it's in
The paperwork on file matches the physical unit
The baseline isn't a high bar, and it's what "in stock" was always supposed to mean.
What happens when a buyer calls DSC on a listed part number
When you call about a part number listed by DSC, a member of our sales team verifies the part is in stock and confirms its condition against the supporting documentation before providing a quote.
If the PO lands with the sales desk by 3 p.m. Eastern, the part ships that afternoon out of St. Johns, FL. Every part listed is in stock.
It comes down to how we operate. So when a part number is on site, someone can usually put hands on it the same day.
Why the 3 p.m. cutoff runs the same every day
The 3 p.m. Eastern cutoff gives buyers a reliable standard without overpromising.
When an order comes in before the cutoff, the team works to get it out that day. If timing is tight, they will often push to help. But some larger or more complex orders still take more handling.
The team works with urgency, but only makes promises it can stand behind.
From expendables to rotables
DSC has been a trusted expendable supplier for years, giving buyers access to certified material on the shelf without forcing high minimum orders.
Now we're featuring rotables too. Our crew brings serviceable and repaired units to the shelf as we work through each teardown, and we handle them with the same discipline we've always applied to expendables.
The practical difference
One more supplier on the shortlist means a phone number where the sales team can confirm what's on the shelf, and a 3 p.m. cutoff that adds a reliable node to your AOG plan. That's less guessing on the "in stock" claim next time you're sourcing.
How to reach us
The best way to get to know a supplier is to work with them. The next time you come across a DSC listing, send us an RFQ and experience our same-day response and customer service firsthand.
The DSC sales team is available directly at sales@dsctrading.com. Or, if you prefer, call our office during business hours, and a member of our sales team will answer the phone. There are no automated systems, no endless menus, just a real person ready to help.
Currently on the DSC Shelf - July 2026
| PART NUMBER | DESCRIPTION | CD | CERT | CERT DATE | APPLICATION |
|---|---|---|---|---|---|
| 1-002-0102-2090 | STATIC INVERTER | SV | 8130 EASA | 03/26/2026 | 737 737NG 737MAX 747 757 767 777 787 |
| 10079-01 | LOAD SELECT CONTROL PANEL | SV | 8130 EASA CAAUK | 02/20/2026 | 757 767 |
| 1211260-002 | ACTUATOR - THRUST REVERSER | OH | 8130 EASA CAAUK | 01/29/2026 | 757 |
| 2403-89 | ANTENNA-VHF | OH | 8130 EASA CAAUK | 06/03/2026 | A319 A320 A320NEO A321 A340 |
| 24E507040G04 | WATER HEATER | OH | 8130 EASA CAAUK | 04/29/2026 | 717 737 737NG 747 757 767 777 |
| 2-7680-2 | FUSE HYDRAULIC | SV | 8130 EASA CAAUK | 04/06/2026 | 737 737NG 737MAX 747 757 767 777 787 |
| 31073-110 | SERVOCONTROL-AILERON | OH | 8130 EASA CAAUK | 02/13/2026 | A319 A320 A321 A321NEO |
| 4-60000H882-00 | DRAINMAST CPL. | SV | 8130 EASA CAAUK | 04/24/2026 | A319 A320 A320NEO A321 A321NEO A330 |
| 600612-00-510 | SENSOR, TEMP | SV | 8130 EASA CAAUK | 06/09/2026 | A319 A320 A321 A321NEO |
| 622-4717-004 | MODE CONTROL PANEL | OH | 8130 EASA CAAUK | 06/17/2026 | 757 767 |
| 731966 | HYDRAULIC MOTORPUMP | SV | 8130 EASA CAAUK | 04/22/2026 | 747 757 767 777 |
| 801307-00 | OXYGEN BOTTLE | OH | 8130 EASA CAAUK | 06/29/2026 | A320 A321 737 737NG 737MAX 747 757 767 777 787 |
| 964-0452-012 | HF TRANSCEIVER | SV | 8130 EASA CAAUK | 06/16/2026 | 717 737 737NG 737MAX 747 757 767 777 |
| C20105000-2 | TACHOMETER | SV | 8130 EASA CAAUK | 04/15/2026 | A319 A320 |
| EM91-79-5 | SHUTOFF VALVE | OH | 8130 EASA CAAUK | 04/24/2026 | 737 737NG 737MAX 757 767 BBJ737 |
