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Technical Data Sheet
PartsTable / COMPONENT / 526-21
526-21 ✓ Verified by PartsTable
Clementoni · 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

- R7s Socket<br>- 220-240V<br>- 20000 hours Lifetime<br>- 83% Energy Saving<br>- Luminous Flux: 650 lm<br>- Equivalent to 50W incandescent bulb. Key specifications include color: IVORY, material: STEEL COMP 1018 OVERALL, thickness: 0.062 INCHES NOMINAL IN, body_style: STRAIGHT SHAPE DUPLEX, body_length: 2.875 INCHES MAXIMUM IN, design_form: PREBENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-751-8929, 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
526-21
NSN: 4710-00-751-8929
FSC: 4710
CAGE: 81381 — STEWART & STEVENSON POWER PRODUCTS LLC (USA)
SPECIFICATIONS
colorIVORY
materialSTEEL COMP 1018 OVERALL
thickness0.062 INCHES NOMINAL IN
body_styleSTRAIGHT SHAPE DUPLEX
body_length2.875 INCHES MAXIMUM IN
design_formPREBENT
thread_class2B FIRST END
hole_diameter0.257 INCHES NOMINAL IN
overall_width1.750 INCHES MAXIMUM IN
terminal_typeSCREW ALL MATING ENDS ALL CONTACT GROUPINGS
overall_height1.156 INCHES NOMINAL IN
wall_thickness0.028 INCHES NOMINAL IN
NSN4710-00-751-8929
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 526-21 · Clementoni ⚠ 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: 2A SECOND END A
•
DESIGN FORM: PREBENT
•
TUBE OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND SINGLE END
•
MATERIAL: STEEL TUBING
•
THREAD SERIES DESIGNATOR: UNF SECOND END
•
END CONNECTION STYLE: FLARE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A SECOND END A
DESIGN FORMPREBENT
TUBE OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
THREAD CLASS2B FIRST END
THREAD DIRECTIONRIGHT-HAND SINGLE END
MATERIALSTEEL TUBING
THREAD SERIES DESIGNATORUNF SECOND END
END CONNECTION STYLEFLARE FIRST END
MATERIALSTEEL SINGLE END
END CONNECTION STYLEINVERTED FLARE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
34861049Interchangeable
interchangeable cross-reference
interchangeable
5262GRAYInterchangeable
interchangeable cross-reference
interchangeable
5262-GRYInterchangeable
interchangeable cross-reference
interchangeable
8180538Interchangeable
interchangeable cross-reference
interchangeable
526-21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 526-21?
526-21 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Clementoni.
What parts can replace 526-21?
There are 5 known substitutes for 526-21: 34861049, 5262GRAY, 5262-GRY and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 526-21?
526-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-751-8929. 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