Attachment Fitting: Temperature Range -65°C to +200°C

Component Specifications

Definition

An aerospace attachment fitting is a precision-engineered structural component designed to securely connect and transfer loads between primary and secondary structural elements in aircraft and spacecraft. These fittings are critical for maintaining structural integrity, ensuring proper alignment, and facilitating assembly and disassembly during maintenance operations. They are engineered to withstand extreme environmental conditions including high vibration, thermal cycling, and variable pressure loads while maintaining dimensional stability and fatigue resistance.

Working Principle

Attachment fittings function by providing a secure mechanical interface between structural components through precisely engineered mating surfaces, fastener holes, and load paths. They distribute operational loads (tension, compression, shear, and bending moments) across connected structures while minimizing stress concentrations. The working principle involves transferring forces through the fitting's geometry and material properties to maintain structural continuity and prevent relative movement between connected components under all operational conditions.

Materials

High-strength aluminum alloys (7075-T6, 2024-T3), titanium alloys (Ti-6Al-4V), advanced composites (carbon fiber reinforced polymers), and corrosion-resistant steels (A286, 15-5PH). Materials are selected based on strength-to-weight ratio, fatigue resistance, corrosion resistance, and compatibility with connected structures.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	0.1-5.0 kg
Fatigue Life	>100,000 cycles at design load
Load Capacity	10-500 kN depending on application
Surface Finish	Ra 0.8-3.2 μm
Temperature Range	-65°C to +200°C
Corrosion Protection	Anodized, alodined, or cadmium plated

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, AS9100, MIL-STD-810, NASM, DIN EN 9100

Parent Products

This component is used in the following industrial products

Aerospace Structural Components

Critical load-bearing elements designed to withstand extreme aerospace operational conditions including high stress, temperature variations, and dynamic forces.

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Engineering Analysis

Risks & Mitigation

Fatigue failure under cyclic loading
Stress corrosion cracking
Improper installation leading to misalignment
Galvanic corrosion in dissimilar material interfaces
Thermal expansion mismatch

FMEA Triads

Trigger: Improper torque application during installation
Failure: Bolt loosening leading to joint slippage and excessive wear
Mitigation: Implement calibrated torque tools and torque verification procedures with witness marks

Trigger: Material defects or improper heat treatment
Failure: Reduced fatigue strength leading to premature cracking
Mitigation: Implement material certification requirements and 100% NDE inspection of critical areas

Trigger: Environmental exposure to corrosive agents
Failure: Corrosion pitting leading to stress concentration and crack initiation
Mitigation: Apply appropriate protective coatings and implement regular inspection schedules

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm for critical dimensions, ±0.1° for angular features

Test Method

Static load testing per MIL-STD-810, fatigue testing per ASTM E466, dimensional inspection per ASME Y14.5

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Attachment Fitting

Manufacturer profiles associated with Attachment Fitting.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What are the main types of aerospace attachment fittings?

Common types include clevis fittings, lug fittings, bracket fittings, and shear tie fittings, each designed for specific load transfer requirements and installation configurations.

How are attachment fittings tested for aerospace applications?

They undergo rigorous testing including static load testing, fatigue testing, vibration testing, thermal cycling, and non-destructive examination (NDE) methods like ultrasonic and radiographic inspection.

What factors determine material selection for aerospace attachment fittings?

Key factors include specific strength requirements, weight constraints, corrosion resistance needs, thermal expansion compatibility, and manufacturing considerations for the intended aerospace application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Attachment Fitting