B831-9521-9 — COUPLING,SHAFT,RIGID

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

B831-9521-9: COUPLING,SHAFT,RIGID.

The COUPLING,SHAFT,RIGID is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, section_shape: SQUARE FIRST END FIRST PORTION, overall_length: 21.070 INCHES NOMINAL IN, shaft_location: ONE END OF WORM, worm_body_length: 21.070 INCHES NOMINAL IN, worm_helix_angle: 2.4302 DEG. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-505-0529, 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

B831-9521-9

NSN: 3040-01-505-0529
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

material	COPPER ALLOY
section_shape	SQUARE FIRST END FIRST PORTION
overall_length	21.070 INCHES NOMINAL IN
shaft_location	ONE END OF WORM
special_features	PART NAME BY CONTROLLING AGENCY: WORM SHAFT, ACME THREAD. NOTE: COAT ACME THREADS ON SHAFT WITH TERMALENE A-A-50433, PRIOR TO ASSEMBLY.
worm_body_length	21.070 INCHES NOMINAL IN
worm_helix_angle	2.4302 DEG
worm_thread_lead	0.166 INCHES NOMINAL IN
worm_pitch_diameter	1.1338 INCHES MINIMUM AND 1.1578 INCHES MAXIMUM IN
worm_thread_quantity	76
worm_outside_diameter	1.2417 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
worm_thread_direction	RIGHT-HAND
NSN	3040-01-505-0529

COMPONENT DIAGRAM

KEY FEATURES

•

SHAFT LOCATION: ONE END OF WORM

•

SECTION SHAPE: SQUARE FIRST END FIRST PORTION

•

WORM BODY LENGTH: 21.070 INCHES NOMINAL IN

•

WORM THREAD LEAD: 0.166 INCHES NOMINAL IN

•

WORM PITCH DIAMETER: 1.1338 INCHES MINIMUM AND 1.1578 INCHES MAXIMUM IN

•

WORM OUTSIDE DIAMETER: 1.2417 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SHAFT LOCATION	ONE END OF WORM
SECTION SHAPE	SQUARE FIRST END FIRST PORTION
WORM BODY LENGTH	21.070 INCHES NOMINAL IN
WORM THREAD LEAD	0.166 INCHES NOMINAL IN
OVERALL LENGTH	21.070 INCHES NOMINAL IN
WORM PITCH DIAMETER	1.1338 INCHES MINIMUM AND 1.1578 INCHES MAXIMUM IN
WORM OUTSIDE DIAMETER	1.2417 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
SPECIAL FEATURES	PART NAME BY CONTROLLING AGENCY: WORM SHAFT, ACME THREAD. NOTE: COAT ACME THREADS ON SHAFT WITH TERMALENE A-A-50433, PRIOR TO ASSEMBLY.
WORM THREAD SECTION LENGTH	12.670 INCHES NOMINAL IN
END ITEM IDENTIFICATION	SEAWOLF CLASS SUBMARINE SSN 23, CARGO BAY LOADLINE EXTENSION GUIDE RAILSASSEMBLY.

SUBSTITUTES & CROSS-REFERENCES 2

596-7410251-9Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

7410251Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 B831-9521-9?

B831-9521-9 is a COUPLING,SHAFT,RIGID.

What parts can replace B831-9521-9?

There are 2 known substitutes for B831-9521-9: 596-7410251-9, 7410251. Substitute compatibility should be verified for your specific system.

What is the NSN for B831-9521-9?

B831-9521-9 is cataloged in the U.S. Government catalog under NSN 3040-01-505-0529. This indicates validated use in U.S. government and defense supply chains.

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