PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 561309
561309 ✓ 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

CYLINDER ASSEMBLY,AIR AND HYDRAU. Key specifications include end_item_identification: 2420-088-9384 AND 2420-930-5999, general_characteristics_item_description: CONSISTS OF 11083 2R521 CYLINDER ASSY 1,11083 3M3222 CHAMBER 1. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-446-8381, 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
561309
NSN: 4820-00-446-8381
FSC: 4820
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
end_item_identification2420-088-9384 AND 2420-930-5999
general_characteristics_item_descriptionCONSISTS OF 11083 2R521 CYLINDER ASSY 1,11083 3M3222 CHAMBER 1
NSN4820-00-446-8381
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 561309 · 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
•
DISK LOADING METHOD: SPRING
•
BONNET TYPE: INSIDE SCREW
•
SURFACE TREATMENT: ANODIZE LOCATION NOT OTHERWISE SPECIFIED
•
MATERIAL: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) FLOW CONTROL DEVICE
•
FLOW CONTROL DEVICE: BALL
•
BONNET ATTACHMENT METHOD: INTEGRAL
•
VALVE OPERATION METHOD: AUTOMATIC
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
DISK LOADING METHODSPRING
BONNET TYPEINSIDE SCREW
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
MATERIALPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) FLOW CONTROL DEVICE
FLOW CONTROL DEVICEBALL
BONNET ATTACHMENT METHODINTEGRAL
VALVE OPERATION METHODAUTOMATIC
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
221-8-2Interchangeable
interchangeable cross-reference
interchangeable
9219365Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 561309?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 561309?
561309 is a CYLINDER ASSEMBLY,AIR AND HYDRAU.
What parts can replace 561309?
There are 2 known substitutes for 561309: 221-8-2, 9219365. Substitute compatibility should be verified for your specific system.
What is the NSN for 561309?
561309 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-446-8381. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 561309

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026