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21228-1 — PRINTED CIRCUIT BOARD

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21228-1: PRINTED CIRCUIT BOARD.

The PRINTED CIRCUIT BOARD is a the manufacturer industrial component. Key specifications include filter: NOT INCLUDED, material: ALUMINUM ALLOY 2024, body_style: ANGLE, first_leg_style: SQUARE, first_leg_width: 0.190 INCHES NOMINAL IN, regulation_type: AUTOMATIC DOUBLE STAGE. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-072-4529, 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
21228-1
NSN: 4820-00-072-4529
NIINs: 000724529, 011015597, 012370217, 015600563
FSC: 4820 — Valves, Nonpowered
CAGE: 04577 — MISSION SYSTEMS ORCHARD PARK INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialALUMINUM ALLOY 2024
body_styleANGLE
first_leg_styleSQUARE
first_leg_width0.190 INCHES NOMINAL IN
regulation_typeAUTOMATIC DOUBLE STAGE
first_leg_length0.940 INCHES NOMINAL IN
second_leg_styleSQUARE
second_leg_width0.190 INCHES NOMINAL IN
style_designatorANGLE
second_leg_length0.790 INCHES NOMINAL IN
surface_treatmentCHROMATE
NSN4820-00-072-4529
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21228-1 · 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
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
BODY STYLE: ANGLE
•
REGULATION TYPE: AUTOMATIC DOUBLE STAGE
•
THIRD END RELATIONSHIP WITH PRECEDING ENDS: IDENTICAL WITH FIRST END
•
END CONNECTION QUANTITY: 3
•
VALVE LOADING METHOD: SPRING
•
SURFACE TREATMENT: ANODIZE OUTSIDE
•
MATERIAL: ALUMINUM ALLOY BODY
TECHNICAL CHARACTERISTICS
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLEANGLE
REGULATION TYPEAUTOMATIC DOUBLE STAGE
THIRD END RELATIONSHIP WITH PRECEDING ENDSIDENTICAL WITH FIRST END
END CONNECTION QUANTITY3
VALVE LOADING METHODSPRING
SURFACE TREATMENTANODIZE OUTSIDE
MATERIALALUMINUM ALLOY BODY
MEDIA FOR WHICH DESIGNEDHYDRAULIC OIL
THREAD SIZE AND SERIES/TYPE DESIGNATOR108-14 ANPT FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
8148650Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 21228-1?
21228-1 is a PRINTED CIRCUIT BOARD.
What parts can replace 21228-1?
There is 1 known substitute for 21228-1: 8148650. Substitute compatibility should be verified for your specific system.
What is the NSN for 21228-1?
21228-1 is cataloged in the U.S. Government catalog under NSN 4820-00-072-4529. 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.