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PartsTable / COMPONENT / 40176 ASSY 40176-108
40176 ASSY 40176-108 ✓ 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 VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, body_style: STRAIGHT THRU, special_features: VALVE SIZE 2.500 IN. IN, flow_control_device: PISTON, SPRING LOADED, face_to_face_distance: 8.750 INCHES NOMINAL IN, first_end_connection_type: RECESSED FLANGE.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-318-5431, 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
40176 ASSY 40176-108
NSN: 4820-01-318-5431
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
body_styleSTRAIGHT THRU
special_featuresVALVE SIZE 2.500 IN. IN
flow_control_devicePISTON, SPRING LOADED
face_to_face_distance8.750 INCHES NOMINAL IN
end_connection_quantity3
first_end_connection_typeRECESSED FLANGE
first_end_recess_diameter2.750 INCHES NOMINAL IN
first_end_flange_thickness0.531 INCHES NOMINAL IN
first_end_style_designatorRECESSED
first_end_bolt_hole_diameter0.562 INCHES NOMINAL IN
first_end_bolt_hole_quantity6
NSN4820-01-318-5431
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40176 ASSY 40176-108 · 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 DOCUMENT AND CLASSIFICATION: QQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
•
MATERIAL: COPPER ALLOY SEAT
•
FIRST END FLANGE OUTSIDE DIAMETER: 6.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIALCOPPER ALLOY SEAT
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING BODY
MATERIALSTEEL CORROSION RESISTING STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 FED SPEC SINGLE MATERIAL RESPONSE BODY
FIRST END FLANGE OUTSIDE DIAMETER6.125 INCHES NOMINAL IN
FIRST END CONNECTION TYPERECESSED FLANGE
SPECIAL FEATURESVALVE SIZE 2.500 IN. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
40176Interchangeable
interchangeable cross-reference
interchangeable
AS40176Interchangeable
interchangeable cross-reference
interchangeable
AMS-STD-184Interchangeable
interchangeable cross-reference
interchangeable
FS50104-2012-2Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
68FL3-16X1-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40176 ASSY 40176-108?
40176 ASSY 40176-108 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 40176 ASSY 40176-108?
There are 21 known substitutes for 40176 ASSY 40176-108: 40176, AS40176, AMS-STD-184 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40176 ASSY 40176-108?
40176 ASSY 40176-108 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-318-5431. 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