# Tolerance Deviation and Concession Request Template

> Source: https://netray.co/tools/tolerance-deviation-concession-request-template
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: Free Tools

## Short answer

A request form for approving a measured feature that falls outside drawing tolerance, with fit, form and function assessment and customer approval fields.

## Category

quality

## Industry

Discrete Manufacturing

## Audience

- Quality engineer
- Design engineer
- Supplier quality

## Tool

**Kind:** template

**Output:** document

**Fields:**

#### Company name

**Key:** company

**Type:** text

**Default:** Acme Precision Ltd

#### Request number

**Key:** request_no

**Type:** text

**Default:** DEV-2026-0147

#### Date

**Key:** date

**Type:** date

**Default:** 2026-10-20

#### Part number and revision

**Key:** part_no

**Type:** text

**Default:** PN-48213 Rev C

#### Lot or serial numbers

**Key:** lot

**Type:** text

**Default:** Lot 26-1033, 40 pieces

#### Feature and drawing zone

**Key:** feature

**Type:** text

**Default:** Bore B2, zone C4

#### Drawing requirement

**Key:** requirement

**Type:** text

**Default:** 25.000 to 25.021 mm

#### Measured value

**Key:** actual

**Type:** text

**Default:** 25.026 to 25.031 mm

#### Scope of request

**Key:** scope

**Type:** select

**Options:**

- One-time, this lot only
- Limited quantity
- Time-limited
- Permanent (requires drawing change)

**Default:** One-time, this lot only

#### Fit, form and function assessment

**Key:** impact

**Type:** textarea

**Default:** Mating shaft is 24.980 to 24.993 mm. Worst-case clearance increases from 0.041 mm to 0.051 mm. Bearing life and noise requirement not affected per engineering analysis.

#### Cause and corrective action

**Key:** root_cause

**Type:** textarea

**Default:** Boring bar wear. Tool life limit reduced and in-process gauging added at 10 piece intervals.

**Blocks:**

#### Deviation / Concession Request

**Body:** Company: {{company}}
Request no: {{request_no}}
Date: {{date}}
Part: {{part_no}}
Lot or serials: {{lot}}
Scope: {{scope}}

#### Nonconformance

**Table:**

**Columns:**

- Feature
- Requirement
- Measured

**Rows:**

**0:** {{feature}}

**1:** {{requirement}}

**2:** {{actual}}

#### Fit, form and function assessment

**Body:** {{impact}}

#### Cause and corrective action

**Body:** {{root_cause}}

#### Disposition decision

**Table:**

**Columns:**

- Option
- Selected

**Rows:**

**0:** Accept as is

**0:** Accept with rework

**0:** Reject and scrap

**0:** Return to supplier

#### Approvals

**Signatures:**

- Originator
- Design authority
- Quality manager
- Customer representative (if required)

**Notes:** Many customer contracts and standards require customer approval before shipping nonconforming product. Check your contract. This is a starting point, not legal advice.

## Content

**Intro:** When a lot measures just outside the drawing, the real question is whether the part still fits, forms and functions. A concession request puts that argument, the cause and the approvals on one page.

**Sections:**

#### How to fill it in

**Body:** State the exact feature, the drawing requirement and the measured range. Then write the fit, form and function argument with numbers: compare the new worst-case clearance or interference against the mating part. Pick a scope so nobody mistakes a one-time concession for a standing change. Finish with the cause and what stops it recurring.

#### Deviation versus waiver versus drawing change

**Body:** A deviation or concession accepts a specific nonconforming quantity. If the drawing tolerance is simply unrealistic, the right answer is a drawing change, not a stream of repeat concessions. The scope picker makes that visible: a permanent request should trigger an ECN.

**Bullets:**

- One-time: this lot only, no precedent
- Limited quantity: a stated count or date
- Permanent: needs a drawing revision

#### Common mistakes

**Body:** Teams often write 'engineering says OK' without any numbers. Show the stack-up or the fit change. Also avoid shipping before the customer signs when the contract requires it, and remember to quarantine and tag the lot in the ERP so the deviation follows the stock.

**Cta:** If concessions are tracked by email today, we can help build a controlled deviation workflow tied to lots in your ERP.

**Faq:**

#### What is the difference between a deviation and a concession?

**Answer:** Usage varies. A deviation is often approved before production, a concession after a part has been made nonconforming. Many companies use one form for both. Use the terms your customer contract uses.

#### Do I always need customer approval?

**Answer:** Not always, but many aerospace, defense and automotive contracts require it for nonconformances that affect form, fit or function or that are not repairable. Read the contract and quality clauses.

#### How do I show the fit impact?

**Answer:** Recompute minimum and maximum clearance or interference with the measured values and compare to the functional limits. Include the mating part dimension so the reviewer can follow the maths.

#### Should the ERP know about the concession?

**Answer:** Yes. Reference the request number on the lot or inspection record so receiving, inventory and shipping can see the lot is accepted under concession.

## Search terms

tolerance deviation request form, concession request template, engineering deviation form, waiver request template, out of tolerance concession form, nonconforming part use as is request, deviation permit template

---
Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json