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NAP911 PIECE 20 — RETAINER,DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NAP911 PIECE 20: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, valve_design_control_activity: 70667, valve_size_for_which_designed: 0.250 INCHES IN, material_document_and_classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-249-3494, 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
NAP911 PIECE 20
NSN: 4820-01-249-3494
FSC: 4820 — Valves, Nonpowered
CAGE: 70667 — ATLAS VALVE CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY
valve_design_control_activity70667
valve_size_for_which_designed0.250 INCHES IN
material_document_and_classificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
NSN4820-01-249-3494
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NAP911 PIECE 20 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 0.250 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 70667
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED0.250 INCHES IN
VALVE DESIGN CONTROL ACTIVITY70667
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 4
NAP911Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
P1511EReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
P1511E-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
NAP911 PC20 P1511EReference document
Same NSN cross-reference
Reference document — Secondary 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 NAP911 PIECE 20?
NAP911 PIECE 20 is a RETAINER,DISK,VALVE.
What parts can replace NAP911 PIECE 20?
There are 4 known substitutes for NAP911 PIECE 20: NAP911, P1511E, P1511E-00 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAP911 PIECE 20?
NAP911 PIECE 20 is cataloged in the U.S. Government catalog under NSN 4820-01-249-3494. This indicates validated use in U.S. government and defense supply chains.
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