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51279-1,2 — RELAY ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

51279-1,2: RELAY ASSEMBLY.

The RELAY ASSEMBLY is a the manufacturer industrial component. Key specifications include end_item_identification: RELAY BOARD ASSEMBLY, part_name_assigned_by_controlling_agency: (INAVY)RELAY W HARNESS, AIR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-172-3784, 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
51279-1,2
NSN: 4820-01-172-3784
NIINs: 011723784, 015613314
FSC: 4820 — Valves, Nonpowered
CAGE: 24658 — GENERAL REGULATOR CORP. DBA ACCUDRIV (USA)
SPECIFICATIONS
end_item_identificationRELAY BOARD ASSEMBLY
part_name_assigned_by_controlling_agency(INAVY)RELAY W HARNESS, AIR
NSN4820-01-172-3784
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51279-1,2 · 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
END ITEM IDENTIFICATIONVALVE PRESS REGG 1.50IPS 600PSI
SUBSTITUTES & CROSS-REFERENCES 2
51279-1 AND 2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
51279-01/02Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 51279-1,2?
51279-1,2 is a RELAY ASSEMBLY.
What parts can replace 51279-1,2?
There are 2 known substitutes for 51279-1,2: 51279-1 AND 2, 51279-01/02. Substitute compatibility should be verified for your specific system.
What is the NSN for 51279-1,2?
51279-1,2 is cataloged in the U.S. Government catalog under NSN 4820-01-172-3784. 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.