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B520039 — COVER,NOZZLE,RESPIRATOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B520039: COVER,NOZZLE,RESPIRATOR.

The COVER,NOZZLE,RESPIRATOR is a the manufacturer industrial component. Key specifications include material: PLASTIC, special_features: MARK 2 RE PLACEMENT PART, NIOSH/MSHA, MEETS ANSI/UL 913 STANDARD FOR INTRINSICALLY SAFE APPARATUS. This part is cataloged in the U.S.

Government catalog under NSN 4240-01-395-4580, 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
B520039
NSN: 4240-01-395-4580
FSC: 4240 — Safety and Rescue Equipment
CAGE: 39SU9 — HONEYWELL SAFETY PRODUCTS USA, INC. (USA)
SPECIFICATIONS
materialPLASTIC
special_featuresMARK 2 RE PLACEMENT PART, NIOSH/MSHA, MEETS ANSI/UL 913 STANDARD FOR INTRINSICALLY SAFE APPARATUS
NSN4240-01-395-4580
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COVER,NOZZLE,RESPIRATOR TITLE COMPONENT PN B520039 MFR COVER,NOZZLE,RESPIRATO
KEY FEATURES
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMARK 2 RE PLACEMENT PART, NIOSH/MSHA, MEETS ANSI/UL 913 STANDARD FOR INTRINSICALLY SAFE APPARATUS
MATERIALPLASTIC
SUBSTITUTES & CROSS-REFERENCES 1
520039Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 B520039?
B520039 is a COVER,NOZZLE,RESPIRATOR.
What parts can replace B520039?
There is 1 known substitute for B520039: 520039. Substitute compatibility should be verified for your specific system.
What is the NSN for B520039?
B520039 is cataloged in the U.S. Government catalog under NSN 4240-01-395-4580. 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.