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Technical Data Sheet
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11-3646 — FLYWHEEL,ENGINE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

11-3646: FLYWHEEL,ENGINE.

The FLYWHEEL,ENGINE is a the manufacturer industrial component. Key specifications include end_item_identification: GASOLINE ENGINE, nonsupply_items_and_quantities: W/RING GEAR. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-210-5541, 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
11-3646
NSN: 4820-00-210-5541
NIINs: 002105541, 008687973, 011046784
FSC: 4820 — Valves, Nonpowered
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationGASOLINE ENGINE
nonsupply_items_and_quantitiesW/RING GEAR
NSN4820-00-210-5541
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 11-3646 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.446 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 3.069 INCHES MINIMUM AND 3.070 INCHES MAXIMUM IN
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BODY OUTSIDE DIAMETER: 2.586 INCHES MINIMUM AND 2.590 INCHES MAXIMUM IN
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HARDNESS RATING: 90.0 ROCKWELL B MINIMUM AND 105.0 ROCKWELL B MAXIMUM BODY
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STYLE DESIGNATOR: PLAIN FLANGED
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5700 ASSN STD SINGLE MATERIAL RESPONSE BODY
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BODY INSIDE DIAMETER: 2.523 INCHES MINIMUM AND 2.533 INCHES MAXIMUM IN
•
UNDER FLANGE HEIGHT: 0.136 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.446 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN
FLANGE DIAMETER3.069 INCHES MINIMUM AND 3.070 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.586 INCHES MINIMUM AND 2.590 INCHES MAXIMUM IN
HARDNESS RATING90.0 ROCKWELL B MINIMUM AND 105.0 ROCKWELL B MAXIMUM BODY
STYLE DESIGNATORPLAIN FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5700 ASSN STD SINGLE MATERIAL RESPONSE BODY
BODY INSIDE DIAMETER2.523 INCHES MINIMUM AND 2.533 INCHES MAXIMUM IN
UNDER FLANGE HEIGHT0.136 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONACFT ENG R2800
MATERIALSTEEL BODY
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11-3646?
11-3646 is a FLYWHEEL,ENGINE.
What is the NSN for 11-3646?
11-3646 is cataloged in the U.S. Government catalog under NSN 4820-00-210-5541. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.