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3.0-51-21 PC5 3IN — 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 TELETYPEWRITER SUBASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316, overall_length: 2.940 INCHES NOMINAL IN, stem_actuating_end_type: THREADED EXTERNALLY, largest_outside_diameter: 0.619 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 4820-01-275-9060, 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
3.0-51-21 PC5 3IN
NSN: 4820-01-275-9060
FSC: 4820
CAGE: 76588 — CORE INDUSTRIES INC. DBA MUELLER STEAM SPECIALTY (USA)
SPECIFICATIONS
materialSTEEL COMP 316
overall_length2.940 INCHES NOMINAL IN
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter0.619 INCHES NOMINAL IN
NSN4820-01-275-9060
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3.0-51-21 PC5 3IN · 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 COMP 316
•
LARGEST OUTSIDE DIAMETER: 0.619 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
TECHNICAL CHARACTERISTICS
MATERIALSTEEL COMP 316
OVERALL LENGTH2.940 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER0.619 INCHES NOMINAL IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
305121InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
TW-66008InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2285225InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
52-IN13-1 3INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
BN-2.0/12-52-L10 3INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
BN2.0/12-52-L10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3.0-51-21 PC5 3IN?
3.0-51-21 PC5 3IN is a TELETYPEWRITER SUBASSEMBLY.
What parts can replace 3.0-51-21 PC5 3IN?
There are 13 known substitutes for 3.0-51-21 PC5 3IN: 305121, TW-66008, 2285225 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3.0-51-21 PC5 3IN?
3.0-51-21 PC5 3IN is cataloged in the Federal Logistics Information System under NSN 4820-01-275-9060. 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: October 2026