2W1C18-36-56 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

2W1C18-36-56: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, thickness: 0.056 INCHES NOMINAL IN, hole_diameter: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, overall_diameter: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-686-1678, 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

2W1C18-36-56

NSN: 5310-00-686-1678
FSC: 5310 — Nuts and Washers
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)

SPECIFICATIONS

material	STEEL COMP 301 OVERALL
thickness	0.056 INCHES NOMINAL IN
hole_diameter	0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
overall_diameter	1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
specification/standard_data	43999-2W1 MANUFACTURERS STANDARD
material_document_and_classification	MIL-S-5059 COND 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-686-1678

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 COND 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SPECIFICATION/STANDARD DATA: 43999-2W1 MANUFACTURERS STANDARD

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL COMP 301 OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

•

HOLE DIAMETER: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5059 COND 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SPECIFICATION/STANDARD DATA	43999-2W1 MANUFACTURERS STANDARD
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	STEEL COMP 301 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
THICKNESS	0.056 INCHES NOMINAL IN

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: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 2W1C18-36-56?

2W1C18-36-56 is a WASHER,FLAT.

What is the NSN for 2W1C18-36-56?

2W1C18-36-56 is cataloged in the U.S. Government catalog under NSN 5310-00-686-1678. This indicates validated use in U.S. government and defense supply chains.

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