PartsTable
Technical Data Sheet
Download PDF

VNB31-2 — GEAR OPERATOR,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

VNB31-2: GEAR OPERATOR,VALVE.

The GEAR OPERATOR,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL UNS J92900 SEAT, gear_type: WORM, valve_size: 8.000 INCHES IN, style_designator: STRAIGHT THRU FLANGED ENDS, features_provided: HANDWHEEL, face_to_face_distance: 2.500 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-482-8804, 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
VNB31-2
NSN: 4820-01-482-8804
NIINs: 014828804, 015405871
FSC: 4820 — Valves, Nonpowered
CAGE: 04613 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP (USA)
SPECIFICATIONS
materialSTEEL UNS J92900 SEAT
gear_typeWORM
valve_size8.000 INCHES IN
special_featuresSTEM IS STEEL ST0710, ASTM A479 XN19; APPLICATION: JP5, SUPPLIED WITH GEAR OPERATOR, P/N VBN31-2; REQUIRES PARTS KIT M200B2AAA0
style_designatorSTRAIGHT THRU FLANGED ENDS
features_providedHANDWHEEL
face_to_face_distance2.500 INCHES IN
valve_operation_methodMANUAL
end_item_identificationNEW CONSTRUCTION CVN77
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
furnished_items_and_quantity1 HANDWHEEL
part_name_assigned_by_controlling_agencyVALVE ASSEMBLY
NSN4820-01-482-8804
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: VNB31-2 · 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
•
GEAR TYPE: WORM
•
FEATURES PROVIDED: HANDWHEEL
•
MATERIAL: COPPER
TECHNICAL CHARACTERISTICS
GEAR TYPEWORM
FEATURES PROVIDEDHANDWHEEL
SPECIAL FEATURESMANUFACTURERS SUGGESTED NAME IS MANUAL GEAR OPERATION WITH HANDWHEEL; HANDWHEEL DIAMETER 8 INCHES IN
MATERIALCOPPER
SUBSTITUTES & CROSS-REFERENCES 1
VNB31-B08Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy VNB31-2?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is VNB31-2?
VNB31-2 is a GEAR OPERATOR,VALVE.
What parts can replace VNB31-2?
There is 1 known substitute for VNB31-2: VNB31-B08. Substitute compatibility should be verified for your specific system.
What is the NSN for VNB31-2?
VNB31-2 is cataloged in the U.S. Government catalog under NSN 4820-01-482-8804. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — VNB31-2

✓ 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.