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512B — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

512B: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. This part is cataloged in the U.S. Government catalog under NSN 4820-00-124-0712, 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
512B
NSN: 4820-00-124-0712
NIINs: 001240712, 010955577, 014651607
FSC: 4820 — Valves, Nonpowered
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
Part Number512B
NSN4820-00-124-0712
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 512B · 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
44-1012-24AND2 H-71C AND PIGTAILReference document
Same NSN cross-reference
Reference document — Secondary reference
5313F4BReference document
Same NSN cross-reference
Reference document — Secondary reference
512B10Reference document
Same NSN cross-reference
Reference document — Secondary reference
44-1012-24Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 512B?
512B is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 512B?
There are 4 known substitutes for 512B: 44-1012-24AND2 H-71C AND PIGTAIL, 5313F4B, 512B10 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 512B?
512B is cataloged in the U.S. Government catalog under NSN 4820-00-124-0712. 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.