B619 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

B619: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, thickness: 0.010 INCHES NOMINAL IN, hole_diameter: 0.097 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN, hardness_rating: 75.0 ROCKWELL B MINIMUM AND 80.0 ROCKWELL B MAXIMUM, overall_diameter: 0.209 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN, special_features: C.U. POLYURETHANE 80 KG/M3; 5 INDIVIDUAL 19MM DIAMETER WATER EQUIVALENT EPOXY SPHERES; CONTAINS GERMANIUM-68 KG.

This part is cataloged in the U.S. Government catalog under NSN 5310-00-052-8840, 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

B619

NSN: 5310-00-052-8840
NIINs: 000528840, 005142711, 015827746
FSC: 5310 — Nuts and Washers
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)

SPECIFICATIONS

material	STEEL COMP 301 OVERALL
thickness	0.010 INCHES NOMINAL IN
hole_diameter	0.097 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN
hardness_rating	75.0 ROCKWELL B MINIMUM AND 80.0 ROCKWELL B MAXIMUM
overall_diameter	0.209 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN
special_features	C.U. POLYURETHANE 80 KG/M3; 5 INDIVIDUAL 19MM DIAMETER WATER EQUIVALENT EPOXY SPHERES; CONTAINS GERMANIUM-68 KG
surface_treatment	PASSIVATE OVERALL
radioactive_content	CONTAINS RADIOACTIVE MATERIAL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
specification/standard_data	70210-S8154 MANUFACTURERS STANDARD
NSN	5310-00-052-8840

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 0.203 INCHES NOMINAL IN

•

HARDNESS RATING: 75.0 ROCKWELL B MINIMUM AND 80.0 ROCKWELL B MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: PASSIVATE OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	0.203 INCHES NOMINAL IN
HARDNESS RATING	75.0 ROCKWELL B MINIMUM AND 80.0 ROCKWELL B MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	PASSIVATE OVERALL
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	STEEL OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.094 INCHES NOMINAL IN
THICKNESS	0.010 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 1

S176-53Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B619?

B619 is a WASHER,FLAT.

What parts can replace B619?

There is 1 known substitute for B619: S176-53. Substitute compatibility should be verified for your specific system.

What is the NSN for B619?

B619 is cataloged in the U.S. Government catalog under NSN 5310-00-052-8840. This indicates validated use in U.S. government and defense supply chains.

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