TE Connectivity 748558-4 D-Sub Jackscrew Socket Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748558-4 is a D-Sub female screw lock jackscrew socket accessory designed for the AMPLIMITE Series HDF and HDP connectors. This component functions as a threaded fastening element with an integrated lock washer, enabling secure mechanical attachment of D-Sub connector assemblies.

The 748558-4 carries an obsolete product status. Locating equivalent or substitute components is necessary to support legacy system maintenance, repair operations, and connector assembly applications where original stock availability is limited or depleted.

Substiute Parts

748558-4

TE Connectivity AMP ConnectorsIn Stock: 724748558-4 Datasheet

Current PartRFQ

5748558-4

TE Connectivity AMP ConnectorsIn Stock: 81605748558-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 748558-4 is determined by strict equivalence across the following critical parameters:

• Connector Series: Must be compatible with AMPLIMITE Series HDF and HDP connectors
• Accessory Type: Must function as a jackscrew socket
• Thread Specification: Must match 4-40 socket and 4-40 screw dimensions
• Physical Dimensions: Threaded portion length (0.257" / 6.53mm) and below-head length (0.312" / 7.92mm) must be identical
• Mechanical Features: Must include lock washer functionality

The substitute part 5748558-4 meets all substitution criteria. Both components share identical mechanical specifications, series compatibility, and functional design. The primary distinction between these parts relates to packaging configuration and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 748558-4 and 5748558-4 are functionally equivalent jackscrew socket components for AMPLIMITE Series HDF and HDP D-Sub connectors. Selection between these parts should be based on the following considerations:

RoHS Compliance: The 5748558-4 is RoHS Compliant, while the 748558-4 is RoHS non-compliant. Applications subject to RoHS regulatory requirements must use the 5748558-4.

REACH Compliance: The 748558-4 carries REACH Affected status, indicating potential substance of concern restrictions. The 5748558-4 lists REACH status as Vendor Undefined. Applications requiring confirmed REACH compliance documentation should reference the specific regulatory requirements of the end-use jurisdiction.

Packaging Configuration: The 5748558-4 is supplied in bulk packaging, while the 748558-4 packaging specification is not provided. Bulk packaging may affect inventory management and component handling procedures.

Product Status: Both components are classified as obsolete. Long-term availability from the manufacturer is not assured for either part number.

Inventory Availability: The 5748558-4 maintains higher current stock levels (8057 pieces) compared to the 748558-4 (688 pieces), which may influence procurement timelines for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Are the 748558-4 and 5748558-4 mechanically interchangeable?

A: Yes. Both components share identical mechanical specifications, including thread size (4-40 socket, 4-40 screw), threaded portion length (0.257" / 6.53mm), below-head length (0.312" / 7.92mm), and lock washer features. They are functionally equivalent for AMPLIMITE Series HDF and HDP connector applications.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging configuration (bulk for 5748558-4 versus unspecified for 748558-4), RoHS compliance status (compliant for 5748558-4 versus non-compliant for 748558-4), and REACH status documentation (Vendor Undefined for 5748558-4 versus REACH Affected for 748558-4). Mechanical and electrical specifications are identical.

Q: Which part should I select for a new design?

A: Selection depends on regulatory requirements applicable to the end application. For RoHS-regulated applications, the 5748558-4 is required. For applications without RoHS requirements, either part is mechanically suitable. Both components are obsolete, so long-term availability cannot be assured.

Q: Can I use the 5748558-4 as a direct replacement for the 748558-4 in existing assemblies?

A: Yes. The 5748558-4 is a direct mechanical and functional substitute for the 748558-4 in AMPLIMITE Series HDF and HDP connector assemblies. No design modifications or connector changes are required.

Q: What does the "4-40" thread specification mean?

A: The 4-40 designation indicates a #4 Unified National Coarse (UNC) thread with 40 threads per inch. This specification applies to both the socket and screw components of the jackscrew assembly.

Q: Are there any compatibility restrictions with specific AMPLIMITE connector models?

A: Both the 748558-4 and 5748558-4 are designed for use with AMPLIMITE Series HDF and HDP connectors. No model-specific restrictions are documented in the provided specifications.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Standard storage conditions are acceptable.