Tender · Closed · Request for Proposal

Seal Assembly

Department of National Defence (DND)

Closed: August 27, 2026; August 27, 2026 at 14:00
Published: August 12, 2026; amended August 27, 2026
Type: Goods; Competitive - Open bidding
Delivery: British Columbia; and 2 more

CanadaBuys tender notices published since Aug 2022; open as of October 12, 2026. Source: Public Services and Procurement Canada, CanadaBuys open data.

Read the full notice on CanadaBuys

What it is

Reference: cb-291-44852968 · solicitation W8482-275532/A
Commodity (UNSPSC): 31140000 Moldings
Topic: Manufacturing components
Delivery regions: British Columbia, Anywhere in Canada, Nova Scotia
Trade agreements: Canadian Free Trade Agreement (CFTA)
How the winner is picked: Lowest Price What this means

The Department of National Defence has a requirement for the items detailed below. The delivery is requested at CFB Halifax and CFB Esquimalt. Line Item: 001 SEAL ASSEMBLY Part Number: 342563 NCAGE: L3636 CHESTERTON CO LTDCHESTERTON ATLANTIC GSIN: 5330 Quantity: 6 UoI: EA to be delivered to: CFB Halifax Line Item: 002 SEAL ASSEMBLY Part Number: 342563 NCAGE: L3636 CHESTERTON CO LTDCHESTERTON ATLANTIC GSIN: 5330 Quantity: 4 UoI: EA to be delivered to: CFB Esquimalt Bidders proposing an Equivalent or a Substitute Product must indicate the brand name and model and/or Part Number and the NCAGE they are offering. The requirement is subject to a preference for Canadian goods and/or services. The Crown retains the rights to negotiate with suppliers on any procurement. Documents may be submitted in either official language of Canada.

Excerpt of the buyer’s description, with contact details left out. The notice on CanadaBuys is the official version.

Who won it

The award notice CanadaBuys published for this solicitation.

Awarded	Supplier	What	Buyer	Value
Sep 2026	A.W. Chesterton Company Ltd	Seal Assembly	Department of National Defence (DND)	Not stated

Who won the last ones like it

Recent CanadaBuys award notices with the same commodity family.

Awarded	Supplier	What	Buyer	Value
Aug 2026	Simex Defence Inc.	GASKETS, PREFORMED PACKING, and SEALS for Transmissions	Department of National Defence (DND)	$89,933

Values as awarded, from $89,933 to $89,933.

Who wins most in this commodity class

Suppliers with the most award notices in the same six-digit UNSPSC class since 2022. Notices that give no value count in Awards, not in Total.

Supplier	Awards	Total
Simex Defence Inc.	1	$90K
A.W. Chesterton Company Ltd	1	Not stated
GCPROC Ltd.	1	Not stated
JHT Defense Inc.	1	Not stated

CanadaBuys award notices since Aug 2022. They overlap the Treasury Board contract figures and are never added to them. Source: CanadaBuys open data, October 12, 2026.