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40734-9 PC NO 33 — Technical Data Sheet

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— · 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 CORROSION RESISTING BODY, special_features: CLASS 303-COLD-COND.A, seating_surface_shape: FLAT, end_item_identification: E/I 1 1/2 INCH TRAC STYLE RA, PILOT OPERATED REDUCING VALUE; W/S TARAWA CLASS LHA IN, material_document_and_classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-483-9643, 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
40734-9 PC NO 33
NSN: 4820-01-483-9643
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
special_featuresCLASS 303-COLD-COND.A
seating_surface_shapeFLAT
end_item_identificationE/I 1 1/2 INCH TRAC STYLE RA, PILOT OPERATED REDUCING VALUE; W/S TARAWA CLASS LHA IN
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY
NSN4820-01-483-9643
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40734-9 PC NO 33 · 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 CORROSION RESISTING BODY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONE/I 1 1/2 INCH TRAC STYLE RA, PILOT OPERATED REDUCING VALUE; W/S TARAWA CLASS LHA IN
MATERIALSTEEL CORROSION RESISTING BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESCLASS 303-COLD-COND.A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
40734-9 ASSY 40734-901InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40734-9InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40734-901InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40734-9 PC NO 12InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1031-01InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40734-9 PC NO 19InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40734-9 PC NO 33?
40734-9 PC NO 33 is a SEAT,VALVE.
What parts can replace 40734-9 PC NO 33?
There are 20 known substitutes for 40734-9 PC NO 33: 40734-9 ASSY 40734-901, 40734-9, 40734-901 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40734-9 PC NO 33?
40734-9 PC NO 33 is cataloged in the Federal Logistics Information System under NSN 4820-01-483-9643. 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.
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Last verified: October 2026