# EDGAR Filing Document

**Accession Number:** 0000034285
**File Stem:** 0001493152-26-018541
**Filing Date:** 2026-4
**Character Count:** 6396
**Document Hash:** 1b748c4ebfaecae01cb4085bd027f853
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001493152-26-018541.hdr.sgml**: 20260422

**ACCESSION NUMBER**: 0001493152-26-018541

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260422

**DATE AS OF CHANGE**: 20260422

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RELIABILITY INC
- **CENTRAL INDEX KEY:** 0000034285
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-HELP SUPPLY SERVICES [7363]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 750868913
- **STATE OF INCORPORATION:** TX
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-11900
- **FILM NUMBER:** 26883484

**BUSINESS ADDRESS:**
- **STREET 1:** 22505 GATEWAY CENTER DRIVE
- **STREET 2:** P.O. BOX 71
- **CITY:** CLARKSBURG
- **STATE:** MD
- **ZIP:** 20871
- **BUSINESS PHONE:** (203) 489-9500

**MAIL ADDRESS:**
- **STREET 1:** 22505 GATEWAY CENTER DRIVE
- **STREET 2:** P.O. BOX 71
- **CITY:** CLARKSBURG
- **STATE:** MD
- **ZIP:** 20871

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FAIRLANE INDUSTRIES INC
- **DATE OF NAME CHANGE:** 19800519
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SPECK MARK R.
- **CENTRAL INDEX KEY:** 0001792101

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**MAIL ADDRESS:**
- **STREET 1:** C/O RELIABILITY INCORPORATED
- **STREET 2:** 22 BALTIMORE ROAD
- **CITY:** ROCKVILLE
- **STATE:** MD
- **ZIP:** 20850

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**RELIABILITY INCORPORATED**

*(Name of Issuer)*

**Common Stock of Reliability Incorporated (OTC:RLBY)**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Mark R. Speck**<br>22505 Gateway Center Drive<br>PO Box 71<br>Clarksburg MD 20871<br>202-965-1100

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**04/07/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Mark R. Speck** | Name of reporting person<br>**Mark R. Speck** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**3014882.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**261170.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**3014882.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**261170.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3276052.00** | Aggregate amount beneficially owned by each reporting person<br>**3276052.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**7.01%** | Percent of class represented by amount in Row (11)<br>**7.01%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock of Reliability Incorporated (OTC:RLBY)

**(b) Name of Issuer:**
RELIABILITY INCORPORATED

**(c) Address of Issuer's Principal Executive Offices:**
22505 Gateway Center Drive, Box 71, Clarksburg, MD, 20871

**Item 4. Purpose of Transaction**

The Reporting Person acquired the shares for investment and strategic purposes.

The Reporting Person may, in his capacity as an officer of the Issuer, engage in discussions with management and the Board regarding strategic alternatives, including capital raising transactions, potential business combinations, operational initiatives, and other actions intended to enhance shareholder value.

The Reporting Person does not currently have any plans or proposals to effect any of the transactions described in clauses (a) through (j) of Item 4 of Schedule 13D, although they may, from time to time, evaluate such alternatives in light of their roles with the Issuer.

Depending on market conditions and other factors, the Reporting Person may acquire additional shares or dispose of shares of the Issuer.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Mark Speck beneficially owns 3,276,052 shares of Common Stock, representing approximately 7.01% of the Issuer's outstanding Common Stock.

**(b)**
Mark Speck has sole voting and dispositive power over 3,014,882 shares and shared voting and dispositive power over 261,170 shares held by Hawkeye Enterprises, an entity controlled by the Reporting Person.

**(c)**
Except as described herein, no transactions in the Common Stock were effected by the Reporting Person during the past 60 days. The Reporting Person is filing this Schedule 13D promptly upon obtaining the necessary EDGAR access credentials.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The Reporting Person does not have any contracts, arrangements, understandings or relationships with respect to the securities of the Issuer.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Mark R. Speck

**Signature:** /s/ Mark R. Speck

**Name/Title:** Mark R. Speck, CFO

**Date:** 04/22/2026