FreeTender
Accepting bidstenderUnited States

The C-5 Ram Air Fan is used to cool the air system turbine fan that accelerates the engine bleed air across the primary and secondary heat exchangers

Issued by DEPT OF DEFENSE · DEPT OF THE AIR FORCE · AIR FORCE MATERIEL COMMAND · AIR FORCE SUSTAINMENT CENTER · FA8118 AFSC PZABB · via SAM.gov — US federal contract opportunities

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Published
9 Nov 2026
Closes
8 Dec 2026, 21:00 UTC
Reference
FA811827RB010
Location
United States
Sector
Space & Satellite

At a glance

DEPT OF DEFENSE · DEPT OF THE AIR FORCE · AIR FORCE MATERIEL COMMAND · AIR FORCE SUSTAINMENT CENTER · FA8118 AFSC PZABB in United States has published a tender in space & satellite: “The C-5 Ram Air Fan is used to cool the air system turbine fan that accelerates the engine bleed air across the primary and secondary heat exchangers”. Submissions close on 8 December 2026, 28 days from today. Quote reference FA811827RB010 in any correspondence with the buyer. FreeTender has recorded 10 notices from this buyer since 2026, 7 of them currently open. There are 557 open space & satellite notices in United States on FreeTender. Bids are submitted to the buyer through SAM.gov — US federal contract opportunities, not through FreeTender.

Key requirements

Taken from the notice by FreeTender. The tender document on the official portal is binding — check it, and any corrigendum, before you bid.

To bid on SAM.gov (US federal)

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Details

DEPT OF DEFENSE · DEPT OF THE AIR FORCE · AIR FORCE MATERIEL COMMAND · AIR FORCE SUSTAINMENT CENTER · FA8118 AFSC PZABB is soliciting Overhaul of C-5 Ram Air Fan. Solicitation number FA811827RB010. Classified under NAICS 336413 — Other Aircraft Parts and Auxiliary Equipment Manufacturing. Product/service code J041 — MAINT/REPAIR/REBUILD OF EQUIPMENT- REFRIGERATION, AIR CONDITIONING, AND AIR CIRCULATING EQUIPMENT. Responses are due by 08 December 2026 21:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.

The C-5 Ram Air Fan is used to cool the air system turbine fan that accelerates the engine bleed air across the primary and secondary heat exchangers.

Context for bidders

We hold 10 notices from DEPT OF DEFENSE · DEPT OF THE AIR FORCE · AIR FORCE MATERIEL COMMAND · AIR FORCE SUSTAINMENT CENTER · FA8118 AFSC PZABB, going back to August 2026 — 7 of them still open. There are 557 open Space & Satellite tenders in United States. This one closes in 28 days.

Before you bid on this tender

A quick checklist to help you decide whether to bid and prepare a compliant submission for this space & satellite opportunity. Always verify the details on the official source.

  • Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
  • Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
  • Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
  • Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
  • Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
  • Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
Common bidding mistakes to avoid →Writing a winning proposal

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