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Technical Data Sheet
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21030537 — 21030537

✓ Government record, cited
MCNAUGHTON DYNAMICS LIMITED · GATE VALVE
PRODUCT OVERVIEW

21030537: 21030537.

The 21030537 is a MCNAUGHTON DYNAMICS LIMITED industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-453-4130, 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
21030537
NSN: 4820-01-453-4130
FSC: 4820 — Valves, Nonpowered
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
Part Number21030537
ManufacturerMCNAUGHTON DYNAMICS LIMITED
NSN4820-01-453-4130
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21030537 · MCNAUGHTON DYNAMICS LIMITED ⚠ 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
•
MATERIAL: STEEL COMP 303
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESNHA VALVE,PRESSURE REGULATOR
END ITEM IDENTIFICATIONOXYGEN SERVICING UNIT; W/S CODE JA, NIMITZ CLASS CVN
MATERIALSTEEL COMP 303
SUBSTITUTES & CROSS-REFERENCES 1
GD720-724Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21030537?
21030537 is a 21030537 manufactured by MCNAUGHTON DYNAMICS LIMITED.
What parts can replace 21030537?
There is 1 known substitute for 21030537: GD720-724. Substitute compatibility should be verified for your specific system.
What is the NSN for 21030537?
21030537 is cataloged in the U.S. Government catalog under NSN 4820-01-453-4130. This indicates validated use in U.S. government and defense supply chains.
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