ST7M191-20D — NUT ASSEMBLY,TUBE COUPLING

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

ST7M191-20D: NUT ASSEMBLY,TUBE COUPLING.

The NUT ASSEMBLY,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, thread_size: 1-13/16-16, thread_class: 2B, overall_length: 0.496 INCHES MAXIMUM IN, outside_diameter: 1.939 INCHES MAXIMUM IN, special_features: W/TWO ALUMINUM WASHERS AND SIX ALUMINUM O-RINGS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-083-2890, 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

ST7M191-20D

NSN: 4730-01-083-2890
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024
thread_size	1-13/16-16
thread_class	2B
overall_length	0.496 INCHES MAXIMUM IN
outside_diameter	1.939 INCHES MAXIMUM IN
special_features	W/TWO ALUMINUM WASHERS AND SIX ALUMINUM O-RINGS
style_designator	NUT ASSEMBLY
thread_direction	RIGHT-HAND
surface_treatment	ANODIZE
end_item_identification	AIRCRAFT APPLICATION
screw_thread_series_designator	UN
tube_outside_diameter_for_which_designed	1.250 INCHES NOMINAL IN
NSN	4730-01-083-2890

COMPONENT DIAGRAM

KEY FEATURES

•

TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.250 INCHES NOMINAL IN

•

STYLE DESIGNATOR: NUT ASSEMBLY

•

OUTSIDE DIAMETER: 1.939 INCHES MAXIMUM IN

•

THREAD DIRECTION: RIGHT-HAND

•

THREAD SIZE: 1-13/16-16

•

SCREW THREAD SERIES DESIGNATOR: UN

TECHNICAL CHARACTERISTICS

TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED	1.250 INCHES NOMINAL IN
STYLE DESIGNATOR	NUT ASSEMBLY
OVERALL LENGTH	0.496 INCHES MAXIMUM IN
OUTSIDE DIAMETER	1.939 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND
THREAD SIZE	1-13/16-16
SPECIAL FEATURES	W/TWO ALUMINUM WASHERS AND SIX ALUMINUM O-RINGS
SCREW THREAD SERIES DESIGNATOR	UN
SURFACE TREATMENT	ANODIZE
THREAD CLASS	2B

SUBSTITUTES & CROSS-REFERENCES 2

12H72-20ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST7M191Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 ST7M191-20D?

ST7M191-20D is a NUT ASSEMBLY,TUBE COUPLING.

What parts can replace ST7M191-20D?

There are 2 known substitutes for ST7M191-20D: 12H72-20A, ST7M191. Substitute compatibility should be verified for your specific system.

What is the NSN for ST7M191-20D?

ST7M191-20D is cataloged in the U.S. Government catalog under NSN 4730-01-083-2890. This indicates validated use in U.S. government and defense supply chains.

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ST7M191-20D — NUT ASSEMBLY,TUBE COUPLING

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