642AS0219 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

642AS0219: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-078-9431, 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

642AS0219

NSN: 5310-01-078-9431
FSC: 5310 — Nuts and Washers
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 2024 OVERALL
nut_style	HEXAGON
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
washer_thickness	0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
countersink_angle	90.0 DEGREES NOMINAL BOTH ENDS
surface_treatment	PASSIVATE NUT
width_across_flats	0.777 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
nominal_thread_size	0.625 INCHES IN
washer_outside_diameter	0.875 INCHES NOMINAL IN
NSN	5310-01-078-9431

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.875 INCHES NOMINAL IN

•

WIDTH ACROSS FLATS: 0.777 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

WASHER THICKNESS: 0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,TEMPER T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.875 INCHES NOMINAL IN
WIDTH ACROSS FLATS	0.777 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-27725,TYPE 2,CLASS A MIL SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
WASHER THICKNESS	0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/6,TEMPER T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.625 INCHES 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: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 642AS0219?

642AS0219 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.

What is the NSN for 642AS0219?

642AS0219 is cataloged in the U.S. Government catalog under NSN 5310-01-078-9431. This indicates validated use in U.S. government and defense supply chains.

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642AS0219 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

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