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73908 PIECE 3 4 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, style_designator: PLAIN, body_inside_diameter: 4.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-303-1258, 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
73908 PIECE 3 4
NSN: 4820-01-303-1258
FSC: 4820
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
style_designatorPLAIN
body_inside_diameter4.000 INCHES NOMINAL IN
NSN4820-01-303-1258
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 73908 PIECE 3 4 · 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
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIALSTEEL OVERALL
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER4.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
UDS108InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
66-225InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B107.15 TY2CL1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
92210A583InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
73908InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
73908 PIECE 3 4INInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 73908 PIECE 3 4?
73908 PIECE 3 4 is a SEAT,VALVE.
What parts can replace 73908 PIECE 3 4?
There are 6 known substitutes for 73908 PIECE 3 4: UDS108, 66-225, B107.15 TY2CL1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 73908 PIECE 3 4?
73908 PIECE 3 4 is cataloged in the Federal Logistics Information System under NSN 4820-01-303-1258. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026