U.S. Navy & Defense Program Experience

Engineered Ball Valve for the U.S. Navy Since 1990

NSM Inc. dba Cornerstone Valve — design to manufacture, Made-in-America ball valves for naval shipyards, defense agencies, and critical infrastructure. WOSB · MBE · ISO 9001:2015 · CAGE 8H6L1

NSM Inc. dba Cornerstone ValveMissouri City, TXCAGE 8H6L1
ISO 9001:2015Certified Quality Management
WOSBWomen-Owned Small Business
CAGE 8H6L1Federal Contractor ID
MBEMinority Business Enterprise
CMMC 1.0Cybersecurity Maturity Model
API 6A/6D/6DSSValve Design Standards
What We Build

Fit-for-Purpose Severe-Service Ball Valves

Every valve is engineered to the application — not pulled from a catalog. We design, manufacture, and qualify severe-service ball valves for the most demanding naval and defense environments.

Cornerstone Valve precision valve detail
Cornerstone Valve product photo

Fit-for-Purpose Design

Custom-engineered to exact application requirements — pressure class, temperature, media, and installation envelope.

Made in America

All manufacturing performed in the United States, supporting domestic supply chain requirements for defense procurement.

Wide Metallurgy Range

Carbon steel, stainless, duplex, Monel, Inconel, and exotic alloys — matched to service conditions and MIL-SPEC requirements.

Small-Quantity & Prototype Runs

Responsive to low-volume defense orders and prototype qualification programs where large OEMs decline to bid.

MIL-SPEC Qualification

Shock & Vibration Tested to Naval Standards

Cornerstone Valve products are qualified to the same MIL-SPEC test regimes required for shipboard and airborne defense applications.

MIL-S-901D
High-Impact Shock
Grade A shipboard equipment shock qualification — simulates underwater explosion loading on hull-mounted systems.
MIL-STD-167-1
Mechanical Vibration
Type I environmental and Type II internally-excited vibration testing for shipboard machinery and equipment.
Customer Base

Trusted by the U.S. Defense Industrial Base

U.S. Navy
Direct program support since 1990
NAVSUP
Naval Supply Systems Command
Puget Sound Naval Shipyard
Overhaul & repair valve supply
Arnold AFB
Air Force test facility support
Vandenberg AFB
Space launch infrastructure
DLA
Defense Logistics Agency
NASA / SpaceX
Launch facility valve supply
NAVSEA
Naval Sea Systems Command
35 Years of Defense Supply

A Track Record Built on Performance

1990

NSM Inc. founded in Houston, TX — begins supplying severe-service valves to the U.S. Navy.

2001

ISO 9001 certification achieved; quality management system formalized for defense procurement.

2008

WOSB and MBE certifications obtained; CAGE code 8H6L1 registered in federal systems.

2015

MIL-S-901D and MIL-STD-167-1 qualification testing completed for shipboard valve product line.

2020

SAM.gov registration renewed; CMMC Level 1 compliance implemented for DoD contracts.

2025

NAVSEA valve delivered — latest in 35 years of continuous U.S. Navy program support.

Federal Registration

SAM.gov Active — Ready to Source

Identity

UEI
TLN5MH2CXE53
CAGE Code
8H6L1
SAM.gov Active Through
July 24, 2027

NAICS Codes

332912Fluid Power Valve and Fittings Manufacturing
332919Other Metal Valve and Pipe Fitting Manufacturing
423840Industrial Machinery and Equipment Merchant Wholesalers

PSC Codes

4820Valves, Nonpowered
4810Valves, Powered
4730Hose, Pipe, Tube, Lubrication, and Railing Fittings

Ready to Source a Severe-Service Valve?

Send us your spec sheet, drawing, or NSN. We respond to RFQs within one business day.

Missouri City, TX 77489 · (281) 880-8188 · [email protected]

NSM Houston

WOSB-certified industrial valve supplier serving government and commercial procurement teams nationwide.

WOSB CertifiedSAM Registered

Contact

1535 Industrial Drive
Missouri City, TX 77489

© 2026 NSM Houston. All rights reserved. Women-Owned Small Business (WOSB) Certified.