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PartsTable / COMPONENT / 40355-1 PIECE 29
40355-1 PIECE 29 ✓ 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 BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, attachment_method: THREADED, valve_size_for_which_designed: 1.000 INCHES IN, valve_type_for_which_designed: FLUID PRESSURE REGULATING, material_document_and_classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE, valve_model_number_for_which_designed: 1 IN STYL G IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-286-9743, 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
40355-1 PIECE 29
NSN: 4820-01-286-9743
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
attachment_methodTHREADED
valve_size_for_which_designed1.000 INCHES IN
valve_type_for_which_designedFLUID PRESSURE REGULATING
material_document_and_classificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
valve_model_number_for_which_designed1 IN STYL G IN
NSN4820-01-286-9743
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40355-1 PIECE 29 · 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: COPPER ALLOY
•
VALVE SIZE FOR WHICH DESIGNED: 1.000 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 1 IN STYL G IN
•
VALVE TYPE FOR WHICH DESIGNED: FLUID PRESSURE REGULATING
•
ATTACHMENT METHOD: THREADED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
VALVE SIZE FOR WHICH DESIGNED1.000 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
VALVE MODEL NUMBER FOR WHICH DESIGNED1 IN STYL G IN
VALVE TYPE FOR WHICH DESIGNEDFLUID PRESSURE REGULATING
ATTACHMENT METHODTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MB-1912Interchangeable
interchangeable cross-reference
interchangeable
4630-4Interchangeable
interchangeable cross-reference
interchangeable
40564Interchangeable
interchangeable cross-reference
interchangeable
040564Interchangeable
interchangeable cross-reference
interchangeable
40355Interchangeable
interchangeable cross-reference
interchangeable
367399Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40355-1 PIECE 29?
40355-1 PIECE 29 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace 40355-1 PIECE 29?
There are 20 known substitutes for 40355-1 PIECE 29: MB-1912, 4630-4, 40564 and 17 more. Substitute compatibility should be verified for your specific system.
Is 40355-1 PIECE 29 still available?
40355-1 PIECE 29 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026