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Technical Data Sheet

A11221 — 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

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 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
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 15
112-21InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12-13InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C54661InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B94.9InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
T198AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
202738InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
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 15 known substitutes for A11221: 112-21, 12-13, C54661 and 12 more. Substitute compatibility should be verified for your specific system.
Is A11221 still available?
A11221 is currently cancelled.
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