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Technical Data Sheet
PartsTable / COMPONENT / 51970
51970 ✓ Verified by PartsTable
— · 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 YOKE,UNIVERSAL JOINT,AIRCRAFT is a the manufacturer industrial component. Key specifications include end_item_identification: CRANE, part_name_assigned_by_controlling_agency: ROLLER ASSEMBLY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-757-2981, 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
51970
NSN: 4820-00-757-2981
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
end_item_identificationCRANE
part_name_assigned_by_controlling_agencyROLLER ASSEMBLY
NSN4820-00-757-2981
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51970 · 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
•
SEATING SURFACE SHAPE: ANGULAR
•
BODY INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 30.000 NOMINAL
•
FLANGE SEAT TO DISK END HEIGHT: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
UNDER FLANGE HEIGHT: 0.375 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEATING SURFACE SHAPEANGULAR
BODY INSIDE DIAMETER0.500 INCHES NOMINAL IN
SEAT ANGLE IN DEG30.000 NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.188 INCHES NOMINAL IN
STYLE DESIGNATORTHREADED FLANGED
UNDER FLANGE HEIGHT0.375 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
FLANGE DIAMETER1.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MP-208-AInterchangeable
interchangeable cross-reference
interchangeable
51970Interchangeable
interchangeable cross-reference
interchangeable
FL804FPInterchangeable
interchangeable cross-reference
interchangeable
25010495Interchangeable
interchangeable cross-reference
interchangeable
25010971Interchangeable
interchangeable cross-reference
interchangeable
SG811-CF-MMC-010 ITEM 5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51970?
51970 is a YOKE,UNIVERSAL JOINT,AIRCRAFT.
What parts can replace 51970?
There are 6 known substitutes for 51970: MP-208-A, 51970, FL804FP and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51970?
51970 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-757-2981. 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: July 2026