991 4111 — SPROCKET WHEEL

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

991 4111: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 2.0 MILLIMETERS NOMINAL MM, hole_diameter: 10.5 MILLIMETERS NOMINAL MM, heat_treatment: QUENCHED AND TEMPERED, hardness_rating: 225.0 BRINELL STANDARD MINIMUM AND 300.0 BRINELL STANDARD MAXIMUM, overall_diameter: 22.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-159-6590, 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

991 4111

NSN: 5310-01-159-6590
NIINs: 011596590, 011634970
FSC: 5310 — Nuts and Washers
CAGE: 34914 — HIAB USA INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
thickness	2.0 MILLIMETERS NOMINAL MM
hole_diameter	10.5 MILLIMETERS NOMINAL MM
heat_treatment	QUENCHED AND TEMPERED
hardness_rating	225.0 BRINELL STANDARD MINIMUM AND 300.0 BRINELL STANDARD MAXIMUM
overall_diameter	22.0 MILLIMETERS NOMINAL MM
surface_treatment	ZINC OVERALL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
end_item_identification	HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-097-0260 HIAB CRANE (HEMTT); 2320-01-442-1940,TRUCK,CBT,(COMMAND BRIDGE TRANSPORTER)
minimum_tensile_strength	113783 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_style	RECTANGULAR
NSN	5310-01-159-6590

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 22.0 MILLIMETERS NOMINAL MM

•

HEAT TREATMENT: QUENCHED AND TEMPERED

•

HARDNESS RATING: 225.0 BRINELL STANDARD MINIMUM AND 300.0 BRINELL STANDARD MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: 8.8,FSCM 21969 MFR REF SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: ZINC OVERALL

•

MINIMUM TENSILE STRENGTH: 113783 POUNDS PER SQUARE INCH LBS

•

PERIPHERAL SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	22.0 MILLIMETERS NOMINAL MM
HEAT TREATMENT	QUENCHED AND TEMPERED
HARDNESS RATING	225.0 BRINELL STANDARD MINIMUM AND 300.0 BRINELL STANDARD MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	8.8,FSCM 21969 MFR REF SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	ZINC OVERALL
MINIMUM TENSILE STRENGTH	113783 POUNDS PER SQUARE INCH LBS
PERIPHERAL SHAPE STYLE	ROUND
END ITEM IDENTIFICATION	HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-097-0260 HIAB CRANE (HEMTT); 2320-01-442-1940,TRUCK,CBT,(COMMAND BRIDGE TRANSPORTER)
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 3

4HC41Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

6V8495Reference document

Same NSN cross-reference

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

760 598Reference document

Same NSN cross-reference

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

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 991 4111?

991 4111 is a SPROCKET WHEEL.

What parts can replace 991 4111?

There are 3 known substitutes for 991 4111: 4HC41, 6V8495, 760 598. Substitute compatibility should be verified for your specific system.

What is the NSN for 991 4111?

991 4111 is cataloged in the U.S. Government catalog under NSN 5310-01-159-6590. This indicates validated use in U.S. government and defense supply chains.

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991 4111 — SPROCKET WHEEL

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