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204-251 — INTERFACE UNIT,AUTOMATIC DATA PR

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

204-251: INTERFACE UNIT,AUTOMATIC DATA PR.

INTERFACE UNIT,AUTOMATIC DATA PR. Key specifications include material: STEEL OVERALL, body_style: ANGLE GIVE "ADQM" AND "ADQN" IF FLANGED ONE OR TWO ENDS, bore_shape: STRAIGHT, bore_diameter: 50.00 MILLIMETERS NOMINAL MM, hole_diameter: 0.531 INCHES NOMINAL IN, overall_width: 27.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-287-4355, 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→ 204-251
NSN: 4820-00-287-4355
NIINs: 002874355, 005404656, 010861579, 013614703, 015186104, 015880764
FSC: 4820 — Valves, Nonpowered
CAGE: 18163 — EATON CORP CONTROLS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleANGLE GIVE "ADQM" AND "ADQN" IF FLANGED ONE OR TWO ENDS
bore_shapeSTRAIGHT
bore_diameter50.00 MILLIMETERS NOMINAL MM
hole_diameter0.531 INCHES NOMINAL IN
overall_width27.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
overall_diameter1.063 INCHES NOMINAL IN
special_featuresMAINTENANCE-FREE UNIT HELP MAINTAIN A HEALTHY CABIN ENVIRONMENT; ELIMINATE ADVERSE EFFECDTS FOR PASSENGERS ORCREW;IPB 21-20-10-10, F10-090A A
style_designatorLOADING GROOVE, NON-SEPARABLE
flow_control_deviceBALL
NSN4820-00-287-4355
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 204-251 · 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
•
FLOW CONTROL DEVICE: BALL
•
VALVE EQUALIZER LOCATION: INTERNAL
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
BODY STYLE: ANGLE GIVE "ADQM" AND "ADQN" IF FLANGED ONE OR TWO ENDS
•
FIRST END SEAT ANGLE IN DEG: 45.0
•
FIRST END THREAD CLASS: 3A A
•
FIRST END STYLE DESIGNATOR: FLARED
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEBALL
VALVE EQUALIZER LOCATIONINTERNAL
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
BODY STYLEANGLE GIVE "ADQM" AND "ADQN" IF FLANGED ONE OR TWO ENDS
FIRST END SEAT ANGLE IN DEG45.0
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORFLARED
REFRIGERATION CAPACITY IN BTU PER HOUR4.0
SECOND END NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
P1692Reference document
Same NSN cross-reference
Reference document — Secondary reference
204CA50600Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 204-251?
204-251 is a INTERFACE UNIT,AUTOMATIC DATA PR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 204-251?
There are 2 known substitutes for 204-251: P1692, 204CA50600. Substitute compatibility should be verified for your specific system.
What is the NSN for 204-251?
204-251 is cataloged in the U.S. Government catalog under NSN 4820-00-287-4355. This indicates validated use in U.S. government and defense supply chains.
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