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Special Procedures

INDIVIDUAL REPAIR PART ORDERING DATA (IRPOD)

A Myriad of Nuclear item requirements are detailed in a document called an IRPOD. IRPODs are prepared by the Cognizant Design Agents (CDA) Engineers to control or reference the technical requirements for repair parts and components in support of the nuclear program. They are structured similar to a military specification and include six sections. The contents of each section will be discussed separately below.


1.0 Scope

The scope provides a general overview for a vendor to interpret the IRPOD requirements. It identifies whether an item is a piece part or an assembly, and whether classified documents will apply.


2.0 list of Applicable Documents

Section 2.0 provides a consolidated list of documents referenced in the IRPOD. Identified are the standards, specifications, drawings, technical manuals and their respective revision levels that may be used to manufacture the nuclear repair part. Also identified are any documents that contain Not Releasable to Foreign Nationals/Governments/Non-US Citizens (NOFORN) information.


3.0 Technical Requirements

The Technical Requirements section includes both the material requirements (section 3.1) and the manufacturing process requirements (section 3.2) that apply to a specific repair part. CDA Engineers may modify, add, or delete requirements of the referenced drawings and/or specifications in this section of the IRPOD. The following are some examples of specific nuclear fastener requirements that may apply.
Chemical property testing.
Mechanical property testing to include wedge tensile testing for headed fasteners, proof load testing for nuts and hardness testing as required.
Zinc phosphate coating per MIL-DTL-16232.
Locking elements per MIL-DTL-18240.
Verification of critical characteristics and dimensions of the fastener to include overall length, head height, thread form, width across flats, width across corners, etc.
Non-Destructive Testing (NDT) such as liquid Penetrant inspection to MIL-STD-271/Tech Pub 271 with acceptance criteria to MIL-STD-2035, class 1.
Decarburization testing.


4.0 Quality Assurance Provisions

The Quality Assurance Provision section describes or references the quality assurance systems the vendor must maintain in order to supply the nuclear repair part. Also included in this section may be requirements for First Article Testing (FAT) or Production Lot Testing (PLT). FAT is performed to validate the vendor has the manufacturing capability, process and facilities to produce a product in accordance with the requirements of the contract. PLT is performed to verify that the manufacturer can and has maintained the manufacturing capability, process and facilities to produce a product in accordance with the requirements throughout the entire life of the contract. Both testing conditions may be performed by the Government and/or contractor, and may be invoked or referenced in other sections of the IRPOD.


5.0 Preparation for Delivery

The Preparation for Delivery section details the special packing and packaging requirements that apply to a specific repair part. Basic packing and packaging requirements are detailed in the schedule section of each order. ** See Packaging & Packing below for additional information.


6.0 Contract Data Requirements

The Contract Data Requirements section gives the buyer, supplier, and contract administration office a list of the technical data which the supplier must submit as a deliverable under each order. Some repair parts may require the submittal of Records of Test and Inspection (ROTIs), Manufacturing Procedures, or a Certificate of Compliance (COC).


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