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PartsTable / COMPONENT / 21509N PART 42183
21509N PART 42183 ✓ 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

ROD,PISTON,LINEAR ACTUATING CYLI. Key specifications include body_width: 3.900 INCHES NOMINAL IN, body_height: 2.500 INCHES NOMINAL IN, body_length: 4.320 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-367-7559, 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
21509N PART 42183
NSN: 4820-01-367-7559
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
body_width3.900 INCHES NOMINAL IN
body_height2.500 INCHES NOMINAL IN
body_length4.320 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
special_features1 PRIMARY WINDING; 5 SECONDARY WINDINGS
nominal_thread_size0.164 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_shielding_methodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
winding_operating_current450.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
NSN4820-01-367-7559
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21509N PART 42183 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
493317-1Interchangeable
interchangeable cross-reference
interchangeable
T59795Interchangeable
interchangeable cross-reference
interchangeable
PEI6260Interchangeable
interchangeable cross-reference
interchangeable
21509NInterchangeable
interchangeable cross-reference
interchangeable
30254Interchangeable
interchangeable cross-reference
interchangeable
21509N GROUP 3 PIECE 11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21509N PART 42183?
21509N PART 42183 is a ROD,PISTON,LINEAR ACTUATING CYLI.
What parts can replace 21509N PART 42183?
There are 24 known substitutes for 21509N PART 42183: 493317-1, T59795, PEI6260 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21509N PART 42183?
21509N PART 42183 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-367-7559. 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