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6931025 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6931025: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, seat_radius: 0.373 INCHES NOMINAL IN, overall_height: 0.318 INCHES NOMINAL IN, style_designator: PLAIN, body_inside_diameter: 0.188 INCHES NOMINAL IN, body_outside_diameter: 0.373 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-485-6977, 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
6931025
NSN: 4820-01-485-6977
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
seat_radius0.373 INCHES NOMINAL IN
overall_height0.318 INCHES NOMINAL IN
style_designatorPLAIN
body_inside_diameter0.188 INCHES NOMINAL IN
body_outside_diameter0.373 INCHES NOMINAL IN
seating_surface_shapeRADIAL
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4820-01-485-6977
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6931025 · 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
•
BODY OUTSIDE DIAMETER: 0.373 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
SEAT RADIUS: 0.373 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 316 OVERALL
•
SEATING SURFACE SHAPE: RADIAL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.318 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.373 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.188 INCHES NOMINAL IN
SEAT RADIUS0.373 INCHES NOMINAL IN
MATERIALSTEEL COMP 316 OVERALL
SEATING SURFACE SHAPERADIAL
SUBSTITUTES & CROSS-REFERENCES 2
6931022Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
6931022 ITEM NO. 5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6931025?
6931025 is a SEAT,VALVE.
What parts can replace 6931025?
There are 2 known substitutes for 6931025: 6931022, 6931022 ITEM NO. 5. Substitute compatibility should be verified for your specific system.
What is the NSN for 6931025?
6931025 is cataloged in the U.S. Government catalog under NSN 4820-01-485-6977. 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.