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20705138 — COCK,DRAIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20705138: COCK,DRAIN.

The COCK,DRAIN is a the manufacturer industrial component. Key specifications include end_item_identification: MRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS AND MRAP BUFFALO MK2A2, part_name_assigned_by_controlling_agency: DRAINCOCK. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-561-1829, 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
20705138
NSN: 4820-01-561-1829
FSC: 4820 — Valves, Nonpowered
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
end_item_identificationMRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS AND MRAP BUFFALO MK2A2
part_name_assigned_by_controlling_agencyDRAINCOCK
NSN4820-01-561-1829
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20705138 · 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYDRAINCOCK
END ITEM IDENTIFICATIONMRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS AND MRAP BUFFALO MK2A2
SUBSTITUTES & CROSS-REFERENCES 2
61AX121Reference document
Same NSN cross-reference
Reference document — Secondary reference
3007048Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 20705138?
20705138 is a COCK,DRAIN.
What parts can replace 20705138?
There are 2 known substitutes for 20705138: 61AX121, 3007048. Substitute compatibility should be verified for your specific system.
What is the NSN for 20705138?
20705138 is cataloged in the U.S. Government catalog under NSN 4820-01-561-1829. 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.