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2191-0866 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

2191-0866: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052 TUBING, design_form: PREBENT, thread_class: 2B SINGLE END, wall_thickness: 0.035 INCHES NOMINAL IN, special_features: GRUMMAN;A10 AIRCRAFT, seat_angle_in_deg: 45.0 SINGLE END. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-024-3965, 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
2191-0866
NSN: 4710-00-024-3965
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 93568 — HARSCO CORP BMY-COMBAT SYSTEMS DIV (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052 TUBING
design_formPREBENT
thread_class2B SINGLE END
wall_thickness0.035 INCHES NOMINAL IN
special_featuresGRUMMAN;A10 AIRCRAFT
seat_angle_in_deg45.0 SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size0.438 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, FLARED SINGLE END
tube_outside_diameter0.250 INCHES NOMINAL IN
end_connection_spec/stdMIL,MS20819,PART NO.MS20819-4D,AN,AN818,PART NO. AN818-4D
thread_series_designatorUNF SINGLE END
NSN4710-00-024-3965
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 2191-0866 · 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
•
SEAT ANGLE IN DEG: 45.0 SINGLE END
•
DESIGN FORM: PREBENT
•
MATING END QUANTITY: 2 SINGLE END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/7 FED SPEC SINGLE MATERIAL RESPONSE TUBING
•
WALL THICKNESS: 0.035 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.438 INCHES SINGLE END IN
•
END CONNECTION STYLE: SWIVEL NUT, FLARED SINGLE END
•
TUBE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG45.0 SINGLE END
DESIGN FORMPREBENT
MATING END QUANTITY2 SINGLE END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/7 FED SPEC SINGLE MATERIAL RESPONSE TUBING
WALL THICKNESS0.035 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.438 INCHES SINGLE END IN
END CONNECTION STYLESWIVEL NUT, FLARED SINGLE END
TUBE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
SPECIAL FEATURESGRUMMAN;A10 AIRCRAFT
THREAD CLASS2B SINGLE END
OTHER ITEMS IN FSC 4710 — Pipe, Tube and Rigid Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4710-00-001-0080 4710-00-001-0081 4710-00-001-0082 4710-00-001-1229 4710-00-001-1676 4710-00-001-1686 4710-00-001-1688 4710-00-001-1691
SUBSTITUTES & CROSS-REFERENCES 4
05-2191-0866Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
WW-T-700/4Reference document
Same NSN cross-reference
Reference document — Identification reference
05-2191-08Reference document
Same NSN cross-reference
Reference document — Secondary reference
02191-0866Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2191-0866?
2191-0866 is a TUBE ASSEMBLY,METAL.
What parts can replace 2191-0866?
There are 4 known substitutes for 2191-0866: 05-2191-0866, WW-T-700/4, 05-2191-08 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2191-0866?
2191-0866 is cataloged in the U.S. Government catalog under NSN 4710-00-024-3965. 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.