B18.22M — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

B18.22M: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 1.60 MILLIMETERS MINIMUM AND 2.30 MILLIMETERS MAXIMUM MM, hole_diameter: 10.85 MILLIMETERS MINIMUM AND 11.12 MILLIMETERS MAXIMUM MM, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM, overall_diameter: 19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-232-8489, 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

B18.22M

NSN: 5310-01-232-8489
NIINs: 012328489, 012328492, 014182335, 014545913, 014732268, 015072223, 015699619, 016171587
FSC: 5310 — Nuts and Washers
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)

SPECIFICATIONS

material	STEEL OVERALL
thickness	1.60 MILLIMETERS MINIMUM AND 2.30 MILLIMETERS MAXIMUM MM
hole_diameter	10.85 MILLIMETERS MINIMUM AND 11.12 MILLIMETERS MAXIMUM MM
hardness_rating	38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
overall_diameter	19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM
special_features	MUST BE SUITABLY TREATED FOR RELIEF OF HYDROGEN EMBRITTLEMENT; CONFORMS IN ALL ESSENTIALS WITH ANSI B18.22M (NARROW SERIES) METRIC PLAIN WASHERS
surface_treatment	CADMIUM OVERALL
peripheral_shape_style	ROUND
supplementary_features	CAGE CALLS THIS: WASHER-FLAT,METRIC,HARDENED
center_hole_shape_style	ROUND
end_item_identification	1005-01-605-3321
cross-sectional_shape_style	RECTANGULAR
NSN	5310-01-232-8489

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,TY 2,CL 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

OVERALL DIAMETER: 19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: ZINC AND CHROMATE OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

•

THICKNESS: 1.60 MILLIMETERS MINIMUM AND 2.30 MILLIMETERS MAXIMUM MM

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TY 2,CL 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER	19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	STEEL OVERALL
CENTER HOLE SHAPE STYLE	ROUND
THICKNESS	1.60 MILLIMETERS MINIMUM AND 2.30 MILLIMETERS MAXIMUM MM

SUBSTITUTES & CROSS-REFERENCES 1

B1822BS100NReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B18.22M?

B18.22M is a WASHER,FLAT.

What parts can replace B18.22M?

There is 1 known substitute for B18.22M: B1822BS100N. Substitute compatibility should be verified for your specific system.

What is the NSN for B18.22M?

B18.22M is cataloged in the U.S. Government catalog under NSN 5310-01-232-8489. This indicates validated use in U.S. government and defense supply chains.

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