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251821 — UNIVERSAL JOINT,NONVEHICULAR

✓ Government record, cited
TCL · PIPE SECTION
PRODUCT OVERVIEW

251821: UNIVERSAL JOINT,NONVEHICULAR.

The UNIVERSAL JOINT,NONVEHICULAR is a TCL industrial component. Key specifications include end_item_identification: FITTING, UPPER ROLLER RAMP STREAMING AMCM., part_name_assigned_by_controlling_agency: FITTING, UPPER ROLLER, STBD. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-092-5079, 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
251821
NSN: 4720-01-092-5079
NIINs: 010925079, 015254765
FSC: 4720 — Hose and Flexible Tubing
CAGE: 0KDP7 — KIDDE-FENWAL, LLC (USA)
SPECIFICATIONS
end_item_identificationFITTING, UPPER ROLLER RAMP STREAMING AMCM.
part_name_assigned_by_controlling_agencyFITTING, UPPER ROLLER, STBD
NSN4720-01-092-5079
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 251821 · TCL ⚠ 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
•
MEASURING METHOD AND LENGTH: 16.375 INCHES NOMINAL OVERALL IN
•
CONNECTION STYLE: NUT ASSEMBLY WITH GASKET SECOND END
•
END CONNECTION DESIGN: STRAIGHT FIRST END
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER MOLDED RUBBER
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH16.375 INCHES NOMINAL OVERALL IN
CONNECTION STYLENUT ASSEMBLY WITH GASKET SECOND END
CONNECTION STYLEPLAIN OPTIONAL END FIRST END
END CONNECTION DESIGNSTRAIGHT FIRST END
END CONNECTION DESIGNSTRAIGHT SECOND END
LAYER COMPOSITION AND LOCATIONOUTER LAYER MOLDED RUBBER
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED INTERNAL HOSE SECOND END
CROSS-SECTIONAL SHAPE STYLEROUND
THREAD DIRECTIONRIGHT-HAND SECOND END
SUBSTITUTES & CROSS-REFERENCES 2
L-70025Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
252821Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 251821?
251821 is a UNIVERSAL JOINT,NONVEHICULAR manufactured by TCL.
What parts can replace 251821?
There are 2 known substitutes for 251821: L-70025, 252821. Substitute compatibility should be verified for your specific system.
What is the NSN for 251821?
251821 is cataloged in the U.S. Government catalog under NSN 4720-01-092-5079. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.