261U 1/4 — NUT,TUBE COUPLING

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

261U 1/4: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.343 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-210-8750, 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

261U 1/4

NSN: 4730-01-210-8750
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30327 — IMPERIAL (USA)

SPECIFICATIONS

material	COPPER ALLOY 360 OVERALL
nut_style	TUBE COUPLING
nut_height	0.343 INCHES NOMINAL IN
thread_class	2B
thread_series	UNF
thread_direction	RIGHT-HAND
fabrication_method	MACHINED
width_across_flats	0.437 INCHES NOMINAL IN
nominal_thread_size	0.375 INCHES IN
end_item_identification	GENERATOR
thread_quantity_per_inch	24
nominal_tube_outside_diameter	0.250 INCHES IN
NSN	4730-01-210-8750

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.437 INCHES NOMINAL IN

•

THREAD SERIES: UNF

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.375 INCHES IN

•

NUT HEIGHT: 0.343 INCHES NOMINAL IN

•

NUT STYLE: TUBE COUPLING

•

THREAD CLASS: 2B

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.437 INCHES NOMINAL IN
THREAD SERIES	UNF
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
NUT HEIGHT	0.343 INCHES NOMINAL IN
NUT STYLE	TUBE COUPLING
THREAD CLASS	2B
END ITEM IDENTIFICATION	GENERATOR
THREAD QUANTITY PER INCH	24
MATERIAL	COPPER ALLOY 360 OVERALL

OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008

SUBSTITUTES & CROSS-REFERENCES 3

261-U-04Reference document

Same NSN cross-reference

Reference document — Secondary reference

RS7810-261-U04Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

352258902594Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 261U 1/4?

261U 1/4 is a NUT,TUBE COUPLING.

What parts can replace 261U 1/4?

There are 3 known substitutes for 261U 1/4: 261-U-04, RS7810-261-U04, 352258902594. Substitute compatibility should be verified for your specific system.

What is the NSN for 261U 1/4?

261U 1/4 is cataloged in the U.S. Government catalog under NSN 4730-01-210-8750. This indicates validated use in U.S. government and defense supply chains.

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