PartsTable
Technical Data Sheet
Download PDF

7-311A21250-3 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

7-311A21250-3: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY AND CONTACT, mounting_method: TERMINAL, precious_material: GOLD, surface_treatment: GOLD BODY AND CONTACT, cable_entrance_diameter: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN, terminal_type_and_quantity: 1 CRIMP AXIALLY AT ONE END. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-171-0441, 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
7-311A21250-3
NSN: 4820-01-171-0441
FSC: 4820 — Valves, Nonpowered
CAGE: 02731 — MCDONNELL DOUGLAS HELICOPTER CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY AND CONTACT
mounting_methodTERMINAL
precious_materialGOLD
surface_treatmentGOLD BODY AND CONTACT
cable_entrance_diameter0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
terminal_type_and_quantity1 CRIMP AXIALLY AT ONE END
precious_material_and_weight0.005 GOLD GRAINS, TROY
precious_material_and_locationBODY AND CONTACT SURFACES GOLD
NSN4820-01-171-0441
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7-311A21250-3 · 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 1
2415-01Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
Ready to buy 7-311A21250-3?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 7-311A21250-3?
7-311A21250-3 is a VALVE,BUTTERFLY.
What parts can replace 7-311A21250-3?
There is 1 known substitute for 7-311A21250-3: 2415-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 7-311A21250-3?
7-311A21250-3 is cataloged in the U.S. Government catalog under NSN 4820-01-171-0441. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 7-311A21250-3

✓ 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.