PartsTable
Technical Data Sheet
21-106 ✓ Verified by PartsTable
Legrand · MRO · MRO_GENERAL
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 GENERATOR,ENGINE ACCESSORY is a Legrand industrial component. Key specifications include material: STEEL OVERALL, case_style: SHOULDERED, seal_width: 0.500 INCHES NOMINAL IN, test_media: SERUM OR URINE, bonnet_type: INSIDE SCREW, temp_rating: -65.0 CELSIUS AND 225.0 CELSIUS DEGC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-4675, 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
MRO MRO_GENERAL 21-106
NSN: 4820-00-287-4675
FSC: 4820
CAGE: 81982 — HYDRO-AIRE AEROSPACE CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
case_styleSHOULDERED
seal_width0.500 INCHES NOMINAL IN
test_mediaSERUM OR URINE
bonnet_typeINSIDE SCREW
temp_rating-65.0 CELSIUS AND 225.0 CELSIUS DEGC
thread_class3B FIRST END
usage_designFOR THE QUANTITATIVE DETERMINATION OF SODIUM,POTASSIUM AND CHLORIDE
body_materialALUMINUM ALLOY
largest_width0.312 INCHES SINGLE END IN
overall_width0.312 INCHES IN
overall_length4.490 INCHES NOMINAL IN
NSN4820-00-287-4675
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 21-106 · Legrand ⚠ 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
THREAD QUANTITY PER INCH: 18 FIRST END
DISK LOADING METHOD: SPRING
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
CONNECTION STYLE: GASKET SEAL(BOSS) FIRST END
MOUNTING FACILITY: THREADED FASTENER
ADJUSTABLE PRESSURE RANGE: +2300.0 TO 3850.0 POUNDS PER SQUARE INCH LBS
THREAD DIRECTION: RIGHT-HAND FIRST END
BONNET ATTACHMENT METHOD: INTEGRAL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH18 FIRST END
DISK LOADING METHODSPRING
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
CONNECTION STYLEGASKET SEAL(BOSS) FIRST END
MOUNTING FACILITYTHREADED FASTENER
ADJUSTABLE PRESSURE RANGE+2300.0 TO 3850.0 POUNDS PER SQUARE INCH LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
BONNET ATTACHMENT METHODINTEGRAL
BONNET TYPEINSIDE SCREW
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
5480Interchangeable
interchangeable cross-reference
interchangeable
2124-6Interchangeable
interchangeable cross-reference
interchangeable
304-2720-00Interchangeable
interchangeable cross-reference
interchangeable
21106Interchangeable
interchangeable cross-reference
interchangeable
450867Interchangeable
interchangeable cross-reference
interchangeable
AA31306Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21-106?
21-106 is a GENERATOR,ENGINE ACCESSORY manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-106?
There are 17 known substitutes for 21-106: 5480, 2124-6, 304-2720-00 and 14 more. Substitute compatibility should be verified for your specific system.
Is 21-106 still available?
21-106 is currently cancelled.
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