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NMP477 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NMP477: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include special_features: END ITEM APPLICATION RELIEF VALVE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-258-2762, 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
NMP477
NSN: 4820-01-258-2762
NIINs: 012582762, 012916625
FSC: 4820 — Valves, Nonpowered
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
special_featuresEND ITEM APPLICATION RELIEF VALVE
NSN4820-01-258-2762
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NMP477 · 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
SUBSTITUTES & CROSS-REFERENCES 4
NMP-970 PIECE 18 AND 19Reference document
Same NSN cross-reference
Reference document — Secondary reference
NMP-477 PIECE 1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
NMP-970Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
NMP-477 PIECE 11,13 AND 15Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NMP477?
NMP477 is a VALVE,SAFETY RELIEF.
What parts can replace NMP477?
There are 4 known substitutes for NMP477: NMP-970 PIECE 18 AND 19, NMP-477 PIECE 1, NMP-970 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NMP477?
NMP477 is cataloged in the U.S. Government catalog under NSN 4820-01-258-2762. This indicates validated use in U.S. government and defense supply chains.
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