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4466377 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4466377: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL BODY, bonnet_type: EXPOSED SPRING, nominal_width: 25.0 MILLIMETERS ALL ENDS MM, nominal_length: 52.0 MILLIMETERS ALL ENDS MM, style_designator: STRAIGHT THRU, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-680-2728, 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
4466377
NSN: 4820-01-680-2728
FSC: 4820 — Valves, Nonpowered
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL BODY
bonnet_typeEXPOSED SPRING
nominal_width25.0 MILLIMETERS ALL ENDS MM
nominal_length52.0 MILLIMETERS ALL ENDS MM
style_designatorSTRAIGHT THRU
valve_operation_methodAUTOMATIC
end_item_identification2320-01-534-1887
part_name_assigned_by_controlling_agencyVALVE ASSEMBLY, PRESSURE RELIEF, CONTROL VALVE
NSN4820-01-680-2728
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4466377 · 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
•
NOMINAL LENGTH: 52.0 MILLIMETERS ALL ENDS MM
•
STYLE DESIGNATOR: STRAIGHT THRU
•
BONNET TYPE: EXPOSED SPRING
•
NOMINAL WIDTH: 25.0 MILLIMETERS ALL ENDS MM
•
MATERIAL: STEEL BODY
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH52.0 MILLIMETERS ALL ENDS MM
STYLE DESIGNATORSTRAIGHT THRU
BONNET TYPEEXPOSED SPRING
NOMINAL WIDTH25.0 MILLIMETERS ALL ENDS MM
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE ASSEMBLY, PRESSURE RELIEF, CONTROL VALVE
END ITEM IDENTIFICATION2320-01-534-1887
MATERIALSTEEL BODY
VALVE OPERATION METHODAUTOMATIC
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 4466377?
4466377 is a VALVE,SAFETY RELIEF.
What is the NSN for 4466377?
4466377 is cataloged in the U.S. Government catalog under NSN 4820-01-680-2728. 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.