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Technical Data Sheet
PartsTable / COMPONENT / 7378883
7378883 ✓ 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

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.342 INCHES MINIMUM AND 0.347 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL, special_features: INSIDE DIAMETER TAPERED FROM 1.250 IN. TO.

TO 1.325 IN. DIA IN, style_designator: PLAIN, seat_angle_in_deg: 45.000 NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-737-8883, 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
7378883
NSN: 4820-00-737-8883
FSC: 4820
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.342 INCHES MINIMUM AND 0.347 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL
special_featuresINSIDE DIAMETER TAPERED FROM 1.250 IN. TO. TO 1.325 IN. DIA IN
style_designatorPLAIN
seat_angle_in_deg45.000 NOMINAL
body_inside_diameter1.250 INCHES NOMINAL IN
body_outside_diameter1.565 INCHES MINIMUM AND 1.566 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
NSN4820-00-737-8883
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7378883 · 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
•
BODY OUTSIDE DIAMETER: 1.565 INCHES MINIMUM AND 1.566 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL
•
SEATING SURFACE SHAPE: ANGULAR
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER1.565 INCHES MINIMUM AND 1.566 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.250 INCHES NOMINAL IN
SPECIAL FEATURESINSIDE DIAMETER TAPERED FROM 1.250 IN. TO. TO 1.325 IN. DIA IN
OVERALL HEIGHT0.342 INCHES MINIMUM AND 0.347 INCHES MAXIMUM IN
SEAT ANGLE IN DEG45.000 NOMINAL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORPLAIN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
42536Interchangeable
interchangeable cross-reference
interchangeable
319396AInterchangeable
interchangeable cross-reference
interchangeable
6250Interchangeable
interchangeable cross-reference
interchangeable
01Interchangeable
interchangeable cross-reference
interchangeable
369756Interchangeable
interchangeable cross-reference
interchangeable
369756PC4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7378883?
7378883 is a SEAT,VALVE.
What parts can replace 7378883?
There are 7 known substitutes for 7378883: 42536, 319396A, 6250 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7378883?
7378883 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-737-8883. 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