PartsTable
Technical Data Sheet
A11221 ✓ 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 GEAR ASSEMBLY,SPEED DECREASER is a the manufacturer industrial component. Key specifications include total_ratio: 68.27 TO 1, shaft_position: OUTPUT SHAFT EXTENDS TO LEFT OR RIGHT, input_shaft_type: SPLINE, special_features: STRAIGHT OUTPUT SHAFT DIA 0.2497 IN. IN, output_shaft_type: ROUND, FLATTED.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-00-633-3804, 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
A11221
NSN: 4810-00-633-3804
FSC: 4810
CAGE: 03990 — INGERSOLL-RAND COMPANY DBA INGERSOLL-RAND (USA)
SPECIFICATIONS
total_ratio68.27 TO 1
shaft_positionOUTPUT SHAFT EXTENDS TO LEFT OR RIGHT
input_shaft_typeSPLINE
special_featuresSTRAIGHT OUTPUT SHAFT DIA 0.2497 IN. IN
output_shaft_typeROUND, FLATTED
input_shaft_quantity1
output_shaft_quantity1
NSN4810-00-633-3804
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: A11221 · 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
SURFACE TREATMENT: NICKEL OVERALL
NOMINAL THREAD SIZE: 0.562 INCHES SINGLE THREADED PORTION IN
FLANGE DIAMETER: 0.275 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN
MATERIAL: COPPER ALLOY OVERALL
THREAD LENGTH: 0.125 INCHES NOMINAL SINGLE THREADED PORTION IN
FLANGE SEAT TO DISK END HEIGHT: 0.049 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
THREAD SERIES DESIGNATOR: UNF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT: 0.211 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTNICKEL OVERALL
NOMINAL THREAD SIZE0.562 INCHES SINGLE THREADED PORTION IN
FLANGE DIAMETER0.275 INCHES MINIMUM AND 0.278 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
THREAD LENGTH0.125 INCHES NOMINAL SINGLE THREADED PORTION IN
FLANGE SEAT TO DISK END HEIGHT0.049 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.211 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.060 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
112-21Interchangeable
interchangeable cross-reference
interchangeable
12-13Interchangeable
interchangeable cross-reference
interchangeable
C54661Interchangeable
interchangeable cross-reference
interchangeable
B94.9Interchangeable
interchangeable cross-reference
interchangeable
T198AInterchangeable
interchangeable cross-reference
interchangeable
202738Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A11221?
A11221 is a GEAR ASSEMBLY,SPEED DECREASER.
What parts can replace A11221?
There are 16 known substitutes for A11221: 112-21, 12-13, C54661 and 13 more. Substitute compatibility should be verified for your specific system.
Is A11221 still available?
A11221 is currently cancelled.
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