99041A111 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

99041A111: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.170 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, hole_diameter: 0.562 INCHES NOMINAL IN, hardness_rating: 40.0 ROCKWELL B NOMINAL, special_features: ROHS 3 AND REACH COMPLIANT; ECCN EAR 99; SCHEDULE B 731822.0000, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-693-7677, 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

99041A111

NSN: 5310-01-693-7677
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)

SPECIFICATIONS

material	STEEL OVERALL
thickness	0.170 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
hole_diameter	0.562 INCHES NOMINAL IN
hardness_rating	40.0 ROCKWELL B NOMINAL
special_features	ROHS 3 AND REACH COMPLIANT; ECCN EAR 99; SCHEDULE B 731822.0000
surface_treatment	ZINC OVERALL
width_across_flats	1.375 INCHES NOMINAL IN
peripheral_shape_style	SQUARE
center_hole_shape_style	ROUND
end_item_identification	2355-01-567-4930
cross-sectional_shape_style	RECTANGULAR
specification/standard_data	05047-ASME B18.24-2015 NATIONAL STD/SPEC
NSN	5310-01-693-7677

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 1.375 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

HARDNESS RATING: 40.0 ROCKWELL B NOMINAL

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F436,TYPE 1 - CARBON STEEL AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SPECIFICATION/STANDARD DATA: 05047-ASME B18.24-2015 NATIONAL STD/SPEC

•

SURFACE TREATMENT: ZINC OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	1.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	40.0 ROCKWELL B NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM F436,TYPE 1 - CARBON STEEL AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SPECIFICATION/STANDARD DATA	05047-ASME B18.24-2015 NATIONAL STD/SPEC
SPECIAL FEATURES	ROHS 3 AND REACH COMPLIANT; ECCN EAR 99; SCHEDULE B 731822.0000
SURFACE TREATMENT	ZINC OVERALL
PERIPHERAL SHAPE STYLE	SQUARE
PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER,STRUCTURAL,HARDENED SQUARE BEVELED

OTHER ITEMS IN FSC 5310 — Nuts and Washers

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

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 99041A111?

99041A111 is a WASHER,FLAT.

What is the NSN for 99041A111?

99041A111 is cataloged in the U.S. Government catalog under NSN 5310-01-693-7677. This indicates validated use in U.S. government and defense supply chains.

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99041A111 — WASHER,FLAT

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