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MC19040 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include material: STEEL COMP 303 OVERALL, body_style: STRAIGHT THRU, surface_treatment: PASSIVATE OUTSIDE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-324-6245, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MC19040
NSN: 4820-01-324-6245
FSC: 4820
CAGE: 76050 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV M.C.AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
body_styleSTRAIGHT THRU
surface_treatmentPASSIVATE OUTSIDE
NSN4820-01-324-6245
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MC19040 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL COMP 303 BODY
•
BODY STYLE: STRAIGHT THRU
•
SURFACE TREATMENT: PASSIVATE OUTSIDE
•
TEST DATA DOCUMENT: 76050-MC19040 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 303 BODY
SPECIAL FEATURESSURFACE TREATMENT PASSIVATED PER MIL-S-5002; DIMENSIONS 0.990 IN. MAX BY 0.1820 IN. MIN AND 0.1874 IN. MAX DIA; EACH PIN & BODY MUST BE PACKAGED AS A SET TO ACCOMODATE INSTALLATION AT NEXT ASSEMBLY IN
BODY STYLESTRAIGHT THRU
SURFACE TREATMENTPASSIVATE OUTSIDE
TEST DATA DOCUMENT76050-MC19040 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
MATERIALSTEEL COMP 303 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
M2000-328Interchangeable
interchangeable cross-reference
interchangeable
29001Interchangeable
interchangeable cross-reference
interchangeable
11406XInterchangeable
interchangeable cross-reference
interchangeable
0S1202ALTGInterchangeable
interchangeable cross-reference
interchangeable
5133517Interchangeable
interchangeable cross-reference
interchangeable
17390Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MC19040?
MC19040 is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace MC19040?
There are 9 known substitutes for MC19040: M2000-328, 29001, 11406X and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MC19040?
MC19040 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-324-6245. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026