Name: Fits Boeing HL Collar, Part # HL77-12
Brand: Boeing
SKU: HL77-12
Price: 7.94 USD
Availability: InStock

Fits Boeing HL Collar, Part # HL77-12

$7.94 USD

Fits Boeing HL Collar, Part # HL77-12

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In stock

HL77-12

HL Collar

$7.94 USD

Shipping calculated at checkout.

OEM Part Number: HL77-12

Condition: New old stock (NOS), unless a product-specific condition note states otherwise.

Fitment: Confirm the OEM part number and application before ordering. Existing verified catalog fitment and factory schematic information remain attached to the product.

Inventory notice: Dealer-managed stock is confirmed from the latest accepted inventory feed and is not charged until fulfillment is confirmed.

Image notice: Product photo pending. The Iron Vault Industries logo is shown as a placeholder.

Offered through Iron Vault Industries.

Technical details

Hi-Shear HL77 Revision 28, dated 26 April 1993, defines this HI-LOK collar for shear applications with 1/16 in grip variation.
The drawing specifies 2024 aluminum alloy to QQ-A-430 or QQ-A-225/6, aged to T6 under MIL-H-6088.
Dash 12 specifies a right-hand 3/8-24 UNJF-3B internal thread and a separate nominal 3/8 in pin size.
Drawing diameters A and B match the federal record: outside 0.622-0.628 in and inside 0.376-0.388 in.
Overall collar height L is 0.724-0.744 in. The drawing applies dimensions after finish; its other length references are distinct.
The unlettered collar finish specifies brown anodize to MIL-A-8625 and cetyl alcohol lubricant to Hi-Shear Specification 305.
The drawing gives wrenching hex W as 0.488-0.503 in and locates a prevailing-torque locking feature on the collar.

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Fits Boeing HL Collar, Part # HL77-12

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Fits Boeing HL Collar, Part # HL77-12

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