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A1521 PIECE 29 — COCK,DRAIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A1521 PIECE 29: COCK,DRAIN.

The COCK,DRAIN is a the manufacturer industrial component. Key specifications include style_designator: STRAIGHT THRU, nominal_thread_size: 0.250 INCHES ALL ENDS IN, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-236-1225, 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
A1521 PIECE 29
NSN: 4820-01-236-1225
FSC: 4820 — Valves, Nonpowered
CAGE: 64392 — WEIL PUMP CO INC (USA)
SPECIFICATIONS
style_designatorSTRAIGHT THRU
nominal_thread_size0.250 INCHES ALL ENDS IN
valve_operation_methodMANUAL
NSN4820-01-236-1225
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A1521 PIECE 29 · 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
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 2
64L 1/4INReference document
Same NSN cross-reference
Reference document — Secondary reference
A1521Reference 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 A1521 PIECE 29?
A1521 PIECE 29 is a COCK,DRAIN.
What parts can replace A1521 PIECE 29?
There are 2 known substitutes for A1521 PIECE 29: 64L 1/4IN, A1521. Substitute compatibility should be verified for your specific system.
What is the NSN for A1521 PIECE 29?
A1521 PIECE 29 is cataloged in the U.S. Government catalog under NSN 4820-01-236-1225. 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.