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VYY-7303-31 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

VYY-7303-31: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include connection_type: THREADED INTERNAL PIPE, features_provided: SIDE PORTED AND SPRING CENTERED, nominal_thread_size: 0.250 INCHES IN, end_item_identification: SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE), thread_series_designator: NPT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-418-0035, 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
VYY-7303-31
NSN: 4820-01-418-0035
FSC: 4820 — Valves, Nonpowered
CAGE: 97902 — VERSA PRODUCTS CO INC (USA)
SPECIFICATIONS
spool_quantity1
connection_typeTHREADED INTERNAL PIPE
features_providedSIDE PORTED AND SPRING CENTERED
nominal_thread_size0.250 INCHES IN
flow_pattern_quantity2
end_connection_quantity3
end_item_identificationSHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE)
thread_series_designatorNPT
NSN4820-01-418-0035
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: VYY-7303-31 · 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 TYPE: THREADED INTERNAL PIPE
•
END CONNECTION QUANTITY: 3
•
FEATURES PROVIDED: SIDE PORTED AND SPRING CENTERED
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
SPOOL QUANTITY: 1
•
THREAD SERIES DESIGNATOR: NPT
•
FLOW PATTERN QUANTITY: 2
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL PIPE
END CONNECTION QUANTITY3
FEATURES PROVIDEDSIDE PORTED AND SPRING CENTERED
NOMINAL THREAD SIZE0.250 INCHES IN
SPOOL QUANTITY1
END ITEM IDENTIFICATIONSHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE)
THREAD SERIES DESIGNATORNPT
FLOW PATTERN QUANTITY2
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 VYY-7303-31?
VYY-7303-31 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What is the NSN for VYY-7303-31?
VYY-7303-31 is cataloged in the U.S. Government catalog under NSN 4820-01-418-0035. 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.