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Technical Data Sheet
PartsTable / COMPONENT / 551687
551687 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The SWITCH,PUSH is a the manufacturer industrial component. Key specifications include color: BLACK SINGLE ACTUATOR, material: STEEL CORROSION RESISTING TUBING, body_style: BUSHING MOUNTED, body_length: 0.839 INCHES MAXIMUM IN, design_form: PREBENT, thread_class: 2B SINGLE END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-322-9577, 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
551687
NSN: 4710-00-322-9577
FSC: 4710
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
colorBLACK SINGLE ACTUATOR
materialSTEEL CORROSION RESISTING TUBING
body_styleBUSHING MOUNTED
body_length0.839 INCHES MAXIMUM IN
design_formPREBENT
thread_class2B SINGLE END
body_diameter0.656 INCHES MAXIMUM IN
bushing_length0.310 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
wall_thickness0.032 INCHES NOMINAL IN
actuator_height0.187 INCHES NOMINAL IN
mounting_methodTHREADED BUSHING
NSN4710-00-322-9577
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 551687 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD CLASS: 2B SINGLE END
•
THREAD SERIES DESIGNATOR: UNF SINGLE END
•
NOMINAL THREAD SIZE: 0.500 INCHES SINGLE END IN
•
END CONNECTION STYLE: SWIVEL NUT WITH LOOSE OR INTEGRAL CLINCH SLEEVE SINGLE END
•
MATERIAL: STEEL SINGLE END
•
TUBE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
DESIGN FORM: PREBENT
•
FSC APPLICATION DATA: FUEL LINES,ENGINE,NONAIRCRAFT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B SINGLE END
THREAD SERIES DESIGNATORUNF SINGLE END
NOMINAL THREAD SIZE0.500 INCHES SINGLE END IN
END CONNECTION STYLESWIVEL NUT WITH LOOSE OR INTEGRAL CLINCH SLEEVE SINGLE END
MATERIALSTEEL SINGLE END
TUBE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
DESIGN FORMPREBENT
FSC APPLICATION DATAFUEL LINES,ENGINE,NONAIRCRAFT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-8606, TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE TUBING
WALL THICKNESS0.032 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2016764-1Interchangeable
interchangeable cross-reference
interchangeable
A4-86-103Interchangeable
interchangeable cross-reference
interchangeable
2PB11Interchangeable
interchangeable cross-reference
interchangeable
551684Interchangeable
interchangeable cross-reference
interchangeable
551687Interchangeable
interchangeable cross-reference
interchangeable
8732891Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 551687?
551687 is a SWITCH,PUSH.
What parts can replace 551687?
There are 6 known substitutes for 551687: 2016764-1, A4-86-103, 2PB11 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 551687?
551687 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-322-9577. 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