2 1/2HMRB — COUPLING,SHAFT,FLEXIBLE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

2 1/2HMRB: COUPLING,SHAFT,FLEXIBLE.

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include bore_shape: STRAIGHT BOTH ENDS, bore_length: 6.2500 INCHES NOMINAL BOTH ENDS IN, design_type: INTERNAL GEAR, bore_diameter: 3.3750 INCHES NOMINAL BOTH ENDS IN, overall_length: 6.250 INCHES NOMINAL IN, securing_method: THREADED HOLE(S) BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 3010-01-413-8261, 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

2 1/2HMRB

NSN: 3010-01-413-8261
FSC: 3010 — Torque Converters and Speed Changers
CAGE: 75394 — EMERSON POWER TRANSMISSION CORPORATION DBA EMERSON DIV EMERSON POWER TRANSMISSION DIVISION (USA)

SPECIFICATIONS

bore_shape	STRAIGHT BOTH ENDS
bore_length	6.2500 INCHES NOMINAL BOTH ENDS IN
design_type	INTERNAL GEAR
bore_diameter	3.3750 INCHES NOMINAL BOTH ENDS IN
overall_length	6.250 INCHES NOMINAL IN
securing_method	THREADED HOLE(S) BOTH ENDS
outside_diameter	8.375 INCHES NOMINAL IN
features_provided	EXPOSED COUPLING BOLT TYPE AND GEAR FLEX
thread_size_designator	5/8-18 BOTH ENDS
threaded_hole_location	BOTH ENDS: THROUGH FLANGE EQUALLY SPACED
threaded_hole_quantity	6 BOTH ENDS
end_item_identification	WEAPONS SYSTEM WITCHITA CLASS AOR
NSN	3010-01-413-8261

COMPONENT DIAGRAM

KEY FEATURES

•

SECURING METHOD: THREADED HOLE(S) BOTH ENDS

•

THREADED HOLE LOCATION: BOTH ENDS: THROUGH FLANGE EQUALLY SPACED

•

BORE LENGTH: 6.2500 INCHES NOMINAL BOTH ENDS IN

•

DESIGN TYPE: INTERNAL GEAR

•

OUTSIDE DIAMETER: 8.375 INCHES NOMINAL IN

•

FEATURES PROVIDED: EXPOSED COUPLING BOLT TYPE AND GEAR FLEX

•

BORE SHAPE: STRAIGHT BOTH ENDS

TECHNICAL CHARACTERISTICS

SECURING METHOD	THREADED HOLE(S) BOTH ENDS
THREADED HOLE LOCATION	BOTH ENDS: THROUGH FLANGE EQUALLY SPACED
BORE LENGTH	6.2500 INCHES NOMINAL BOTH ENDS IN
DESIGN TYPE	INTERNAL GEAR
OVERALL LENGTH	6.250 INCHES NOMINAL IN
OUTSIDE DIAMETER	8.375 INCHES NOMINAL IN
FEATURES PROVIDED	EXPOSED COUPLING BOLT TYPE AND GEAR FLEX
BORE SHAPE	STRAIGHT BOTH ENDS
THREADED HOLE QUANTITY	6 BOTH ENDS
THREAD SIZE DESIGNATOR	5/8-18 BOTH ENDS

OTHER ITEMS IN FSC 3010 — Torque Converters and Speed Changers

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

3010-00-001-0013 3010-00-001-0067 3010-00-001-0069 3010-00-001-0095 3010-00-001-1239 3010-00-001-1689 3010-00-001-2168 3010-00-001-2173

SUBSTITUTES & CROSS-REFERENCES 6

2 1/2WRBReference document

Same NSN cross-reference

Reference document — Secondary reference

2 1/2X3.8RBSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

1025G20RBSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

662384FB-160031RBReference document

Same NSN cross-reference

Reference document — Secondary reference

F-2 1/2 EB RBReference document

Same NSN cross-reference

Reference document — Secondary reference

FS202 1/2 EB/RBSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 2 1/2HMRB?

2 1/2HMRB is a COUPLING,SHAFT,FLEXIBLE.

What parts can replace 2 1/2HMRB?

There are 6 known substitutes for 2 1/2HMRB: 2 1/2WRB, 2 1/2X3.8RB, 1025G20RB and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 2 1/2HMRB?

2 1/2HMRB is cataloged in the U.S. Government catalog under NSN 3010-01-413-8261. This indicates validated use in U.S. government and defense supply chains.

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