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21509N GRP 1 — 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

ACTUATOR,HYDRAULIC-PNEUMATIC,LIN. Key specifications include length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT, radius: 0.469 INCHES NOMINAL IN, material: STEEL, handle_type: STRAIGHT, current_type: AC INPUT, leg_thickness: 0.062 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4810-01-485-1092, 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 GRP 1
NSN: 4810-01-485-1092
FSC: 4810
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
radius0.469 INCHES NOMINAL IN
materialSTEEL
handle_typeSTRAIGHT
current_typeAC INPUT
key_quantity7
leg_thickness0.062 INCHES NOMINAL IN
heat_treatmentT-6 SOLUTION HEAT TREATED
overall_height2.000 INCHES NOMINAL IN
first_tip_styleSQUARE END
outside_diameter0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
style_designatorCONCAVE
NSN4810-01-485-1092
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21509N GRP 1 · 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 20
BEDX1ADInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
22-57-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5214781InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
55780InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/11InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CVS32062InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21509N GRP 1?
21509N GRP 1 is a ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.
What parts can replace 21509N GRP 1?
There are 20 known substitutes for 21509N GRP 1: BEDX1AD, 22-57-1, 5214781 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21509N GRP 1?
21509N GRP 1 is cataloged in the Federal Logistics Information System under NSN 4810-01-485-1092. 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: October 2026