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1031-400 — VALVE,DIAPHRAGM,STOP

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1031-400: VALVE,DIAPHRAGM,STOP.

The VALVE,DIAPHRAGM,STOP is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, valve_operation_method: MANUAL, nominal_outside_diameter_tube_accommodated: 0.500 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-052-9915, 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
1031-400
NSN: 4820-01-052-9915
NIINs: 010529915, 013135795
FSC: 4820 — Valves, Nonpowered
CAGE: 53655 — AVOX SYSTEMS INC DBA AVOX SYSTEMS INC (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
valve_operation_methodMANUAL
nominal_outside_diameter_tube_accommodated0.500 INCHES ALL ENDS IN
NSN4820-01-052-9915
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1031-400 · 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
•
CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
MATERIAL: ALUMINUM OVERALL
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
MATERIALALUMINUM OVERALL
VALVE OPERATION METHODMANUAL
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 1031-400?
1031-400 is a VALVE,DIAPHRAGM,STOP.
What is the NSN for 1031-400?
1031-400 is cataloged in the U.S. Government catalog under NSN 4820-01-052-9915. 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.