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50M51M — POWER BELLOWS,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

50M51M: POWER BELLOWS,VALVE.

The POWER BELLOWS,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: NICKEL COPPER ALLOY,QQ-N-281. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-241-4615, 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
50M51M
NSN: 4820-00-241-4615
FSC: 4820 — Valves, Nonpowered
CAGE: 21013 — METREX VALVE CORP. DBA METREX VALVE CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionNICKEL COPPER ALLOY,QQ-N-281
NSN4820-00-241-4615
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 50M51M · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: NICKEL COPPER ALLOY,QQ-N-281
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONNICKEL COPPER ALLOY,QQ-N-281
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 1
S5904F3136437Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 50M51M?
50M51M is a POWER BELLOWS,VALVE.
What parts can replace 50M51M?
There is 1 known substitute for 50M51M: S5904F3136437. Substitute compatibility should be verified for your specific system.
What is the NSN for 50M51M?
50M51M is cataloged in the U.S. Government catalog under NSN 4820-00-241-4615. 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.