Approved Laboratory List
Connecticut Metallurgical, Inc.

Laboratory Listing by Accreditation Body
Laboratory Listing by Country & State
Laboratory Listing by Lab Name

Lab Code: PRI 100022
Lab Name: Connecticut Metallurgical, Inc.
Accrediting Body: NADCAP/PRI
Laboratory Contact:
Mr. Thomas Strenk
100 Prestige Park Road
East Hartford, CT 06108
Phone: 860-289-7481
Fax: 860-528-1516
E-Mail:

Mechanical and Physical Testing and Inspection

Aerospace Nut Test

Permanent set test of self-locking nuts

MIL-N-25027 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

Push out test of floating plate nuts, gang channel nuts, and anchor nuts

MIL-N-25027 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

MIL-N-25027 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

Torque-out test

MIL-N-25027 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

MIL-N-25027 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

NAS 3350 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nuts, Self Locking, 450 °F and 800 °F, High Quality, Procurement Specification

Wrench torque test of externally wrenched nuts of spline and hexagon and double hexagon (12 point) w

MIL-N-25027 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

NAS 3350 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Nuts, Self Locking, 450 °F and 800 °F, High Quality, Procurement Specification

Coating

Measurement of fastener coating thickness - microscopial method

ASTM B487 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of a Cross Section

MIL-STD-1312-12 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

Hardness

Rockwell hardness of fasteners

ASTM E18 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials

MIL-STD-1312-6 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 6, Hardness

Proof

Proof load of full-size externally threaded fasteners

ASTM F606 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Sections 3.2.1 through 3.2.3: Proof Load (Length Measurement)

SAE J429 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Mechanical and Material Requirements for Externally Threaded Fasteners. Section 5.3: Proof Load (Length Measurement)

Proof load of internally threaded fasteners (nuts)

ASTM F606 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Section 4.2: Proof Load Test

SAE J995 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Mechanical and Material Requirements for Steel Nuts. Section 5.1: Proof Load Test

Shear

Double shear of externally threaded fasteners

ASTM B565 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Method for Shear Testing of Aluminum and Aluminum-Alloy Rivets and Cold-Heading Wire and Rods

MIL-STD-1312-13 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 13, Double Shear Test

Single shear of externally threaded fasteners

MIL-STD-1312-20 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 20, Single Shear

Stress Rupture

Stress rupture of fasteners

ASTM E292 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Practice for Conducting Time-for Rupture Notch Tension Tests of Materials

MIL-STD-1312-10 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 10, Stress Rupture

Tensile

Axial tensile strength of full-size threaded fasteners

ASTM F606 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Sections 3.4.1 through 3.4.3: Axial Tension Testing of Full Size Products

DOD-STD-1312-108 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Metric, Method 108, Tensile Strength

MIL-STD-1312-18 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 18, Elevated Temperature Tensile Strength (Accreditation of the supplementary test method Elevated Temperature Testing Capability is required)

MIL-STD-1312-8 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 8, Tensile Strength

Torque-tension

Locking Torque

MIL-F-18240 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Element, Self Locking, Threaded Fastener, 250 Deg. F Maximum

MIL-STD-1312-31 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 31, Torque

Metallography

Metallography

Decarburization and case depth measurement in fasteners

ASTM E384 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Method for Microhardness of Materials

MIL-STD-1312-6 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 6, Hardness

Microscopic examination of fasteners by etching

ASTM E112 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Standard Test Methods for Determining Average Grain Size

MIL-STD-1312-12 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

NAS 4002 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fasteners, Alloy Steel, Externally Threaded, 160 KSI Fsu, 450 Deg. F

NAS 4004 -

STATUS: Accredited
Start Date: 03/05/1998 Eff. Date: 03/05/1998 Exp. Date: 01/31/2001
Fasteners, 6A1-4V Titanium Alloy, Externally Threaded, 160 KSI Ftu, 95 KSI Ftu, 450 Deg. F