Tube to Male SAE O-Ring Boss — N6400 Series, 316 Stainless Steel

$25.31 USD

Sale Sold out

Choose size & quantity ↓

Midland Industries · Mfr Part #: SSC640044

Ask about alternatives

Buying in bulk? Get a quote

Shipping calculated at checkout.

Est. shipping to you: Enter ZIP for shipping

Business accountsTax-exemptBulk quotes, usually within 1 business daySecure checkout

Buying from Uline, Grainger or McMaster? Send us your list and we'll price it line by line, usually within 1 business day.

Contact for More Info

Tell us what you need and we'll get back to you quickly with pricing and availability.

Similar items in stock

See all Instrumentation Tube Fittings →

SKU:SSC640044

Flareless twin-ferrule instrumentation fittings in 316 stainless, for instrument, sample and small-bore process tube lines.

Tube to Male SAE O-Ring Boss in 316 stainless steel, N6400 series. 2 sizes stocked, 1/4" through 1/2". Select the size you need from the dropdown — each option is a separate stocked part number.

Before you order

Twin-ferrule fittings are not cross-compatible between brands. Nuts and ferrules from one manufacturer are designed to seal against that manufacturer’s bodies. Mixing them with Swagelok, Parker A-LOK or other makes will compromise the seal even where the threads engage, so keep a single brand through any one joint.

Correct make-up matters: these need proper initial pull-up and, on remakes, a gap-inspection gauge. They also require tube of the correct wall thickness and hardness — they will not seal reliably on thin-wall or work-hardened tube.

Specifications

Material: 316 stainless steel
Configuration: Tube to Male SAE O-Ring Boss
Series: N6400
Size range: 1/4" through 1/2"
Stocked part numbers: 2

Part numbers & sizes

Part #	Size / Configuration	Pack quantities
SSC640044	1/4" Tube × 1/4" Male SAE O-Ring Boss	—
SSC640088	1/2" Tube × 1/2" Male SAE O-Ring Boss	—

Ships from SupplyTie Fittings & Hydraulics. Free freight on every order. $75 minimum order per shipment from this location — the cart will tell you if you are short.

View full details

Questions & answers

How fast does it ship?

Most items ship in 1–3 business days; special-order and drop-ship items vary by vendor.

Does shipping cost extra?

Freight depends on which supplier ships the item. Your cart shows each shipment's freight and any free-freight threshold before you check out.

Can I get a better price on a larger quantity?

Larger quantities often price lower. In your cart, use "Request a quote for this cart" (or our Request a Quote form) for a volume price.

How can I pay?

By card at checkout. ACH or check is accepted on invoiced orders, and Net 30 terms are available for approved business accounts.

What if something arrives damaged or wrong?

Tell us within 7 days of delivery, with photos and your order number, and we will replace it or refund it at our cost. Items you no longer want can only come back with prior approval, within 14 days, unopened, with a 20% restocking fee, and the buyer pays the return freight. Custom, opened and hazardous items, and chemicals and adhesives once shipped, cannot be returned. Details are in our Refund & Return Policy.

Choose sizes & quantities
Variant	Variant total	Quantity	Price	Variant total
1/4" Tube × 1/4" Male SAE O-Ring Boss	1/4" Tube × 1/4" Male SAE O-Ring Boss $25.31/ea	$0.00	Quantity Sold out	$25.31/ea	$0.00

1/2" Tube × 1/2" Male SAE O-Ring Boss	1/2" Tube × 1/2" Male SAE O-Ring Boss $19.50/ea	$0.00	Quantity Sold out	$19.50/ea	$0.00