B1231 — B1231

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

B1231: B1231.

The B1231 is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, usage_design: TRANSMITTING POWER, nominal_width: 0.500 INCHES IN, style_designator: REGULAR FLAT TYPE, nominal_thickness: 0.040 INCHES IN, surface_condition: SMOOTH PULLEY SURFACE. This part is cataloged in the U.S.

Government catalog under NSN 3030-00-053-0394, 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

MRO→ MRO_GENERAL→ B1231

NSN: 3030-00-053-0394
NIINs: 000530394, 004375983, 015496758
FSC: 3030 — Belting, Drive Belts, Fan Belts, and Accessories
CAGE: 73518 — TILTON ENGINEERING COMPONENTS (USA)

SPECIFICATIONS

material	RUBBER OVERALL
ply_quantity	1
usage_design	TRANSMITTING POWER
nominal_width	0.500 INCHES IN
style_designator	REGULAR FLAT TYPE
nominal_thickness	0.040 INCHES IN
surface_condition	SMOOTH PULLEY SURFACE
nominal_inside_circumference	31.420 INCHES IN
NSN	3030-00-053-0394

COMPONENT DIAGRAM

KEY FEATURES

•

NOMINAL INSIDE CIRCUMFERENCE: 31.420 INCHES IN

•

USAGE DESIGN: TRANSMITTING POWER

•

STYLE DESIGNATOR: REGULAR FLAT TYPE

•

SURFACE CONDITION: SMOOTH PULLEY SURFACE

•

PLY QUANTITY: 1

•

NOMINAL WIDTH: 0.500 INCHES IN

•

MATERIAL: COTTON BODY

TECHNICAL CHARACTERISTICS

NOMINAL INSIDE CIRCUMFERENCE	31.420 INCHES IN
USAGE DESIGN	TRANSMITTING POWER
STYLE DESIGNATOR	REGULAR FLAT TYPE
SURFACE CONDITION	SMOOTH PULLEY SURFACE
SURFACE CONDITION	SMOOTH TOP SURFACE
PLY QUANTITY	1
NOMINAL WIDTH	0.500 INCHES IN
MATERIAL	COTTON BODY
MATERIAL	RUBBER OVERALL
NOMINAL THICKNESS	0.040 INCHES IN

SUBSTITUTES & CROSS-REFERENCES 2

4532872-2Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

31-500X500X040RSSReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B1231?

B1231 is a B1231. It is classified as a MRO (MRO_GENERAL).

What parts can replace B1231?

There are 2 known substitutes for B1231: 4532872-2, 31-500X500X040RSS. Substitute compatibility should be verified for your specific system.

What is the NSN for B1231?

B1231 is cataloged in the U.S. Government catalog under NSN 3030-00-053-0394. This indicates validated use in U.S. government and defense supply chains.

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