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5550379-1 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

5550379-1: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: RUBBER FLOW CONTROL DEVICE, special_features: 22 IN. PULL LINE; DS-2 TOWED BUOY IN, valve_operation_method: MANUAL.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-312-7288, 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
5550379-1
NSN: 4820-01-312-7288
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER FLOW CONTROL DEVICE
special_features22 IN. PULL LINE; DS-2 TOWED BUOY IN
valve_operation_methodMANUAL
NSN4820-01-312-7288
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 5550379-1 · 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
•
MATERIAL: RUBBER FLOW CONTROL DEVICE
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES22 IN. PULL LINE; DS-2 TOWED BUOY IN
MATERIALRUBBER FLOW CONTROL DEVICE
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 3
5550379Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
00-013102/21-048-006Reference document
Same NSN cross-reference
Reference document — Secondary reference
21-048-006Reference 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 5550379-1?
5550379-1 is a VALVE,SAFETY RELIEF.
What parts can replace 5550379-1?
There are 3 known substitutes for 5550379-1: 5550379, 00-013102/21-048-006, 21-048-006. Substitute compatibility should be verified for your specific system.
What is the NSN for 5550379-1?
5550379-1 is cataloged in the U.S. Government catalog under NSN 4820-01-312-7288. 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.