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603407-0 — VALVE,REGULATING,OXYGEN SYSTEM P

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

603407-0: VALVE,REGULATING,OXYGEN SYSTEM P.

VALVE,REGULATING,OXYGEN SYSTEM P. Key specifications include filter: NOT INCLUDED, end_item_identification: PHARACHUTISTS' OXYGEN MASK, part_name_assigned_by_controlling_agency: RETAINER MICROPHONE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-641-9840, 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
603407-0
NSN: 4820-01-641-9840
FSC: 4820 — Valves, Nonpowered
CAGE: 57172 — AIRBORNE SYSTEMS NORTH AMERICA OF NJ INC. DBA AIRBORNE SYSTEMS OF NO (USA)
SPECIFICATIONS
filterNOT INCLUDED
end_item_identificationPHARACHUTISTS' OXYGEN MASK
part_name_assigned_by_controlling_agencyRETAINER MICROPHONE
NSN4820-01-641-9840
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 603407-0 · 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
•
FILTER: NOT INCLUDED
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYRETAINER MICROPHONE
END ITEM IDENTIFICATIONPHARACHUTISTS' OXYGEN MASK
FILTERNOT INCLUDED
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 603407-0?
603407-0 is a VALVE,REGULATING,OXYGEN SYSTEM P.
What is the NSN for 603407-0?
603407-0 is cataloged in the U.S. Government catalog under NSN 4820-01-641-9840. 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.