PartsTable
Technical Data Sheet

5250-1/2-400 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

5250-1/2-400: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bonnet_type: OUTSIDE SCREW-YOKE, style_designator: ANGLE, valve_operation_method: AUTOMATIC, end_item_identification: 52 SERIES PRESSURE RELIEF VALVES, part_name_assigned_by_controlling_agency: VALVE,SAFETY RELIEF. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-686-7455, 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
5250-1/2-400
NSN: 4820-01-686-7455
FSC: 4820 — Valves, Nonpowered
CAGE: 28193 — HENRY TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bonnet_typeOUTSIDE SCREW-YOKE
style_designatorANGLE
valve_operation_methodAUTOMATIC
end_item_identification52 SERIES PRESSURE RELIEF VALVES
part_name_assigned_by_controlling_agencyVALVE,SAFETY RELIEF
NSN4820-01-686-7455
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 5250-1/2-400 · 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
•
STYLE DESIGNATOR: ANGLE
•
BONNET TYPE: OUTSIDE SCREW-YOKE
•
MATERIAL: STEEL OVERALL
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORANGLE
BONNET TYPEOUTSIDE SCREW-YOKE
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE,SAFETY RELIEF
END ITEM IDENTIFICATION52 SERIES PRESSURE RELIEF VALVES
MATERIALSTEEL OVERALL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5250-1/2-400?
5250-1/2-400 is a VALVE,SAFETY RELIEF.
What is the NSN for 5250-1/2-400?
5250-1/2-400 is cataloged in the U.S. Government catalog under NSN 4820-01-686-7455. 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.