620-857-563-0 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

620-857-563-0: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: HEXAGON, temp_rating: 425.0 CELSIUS MAXIMUM DEGC, thread_series: ISO M, overall_height: 3.0 MILLIMETERS MAXIMUM MM, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-231-9346, 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

620-857-563-0

NSN: 5310-01-231-9346
FSC: 5310 — Nuts and Washers
CAGE: F0301 — SAFRAN AIRCRAFT ENGINES (FRA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	HEXAGON
temp_rating	425.0 CELSIUS MAXIMUM DEGC
thread_series	ISO M
overall_height	3.0 MILLIMETERS MAXIMUM MM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
special_features	SILVER PLATED
thread_direction	RIGHT-HAND
washer_thickness	0.5 MILLIMETERS MINIMUM MM
precious_material	SILVER
surface_treatment	SILVER OVERALL
width_across_flats	4.0 MILLIMETERS NOMINAL MM
NSN	5310-01-231-9346

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 6.0 MILLIMETERS NOMINAL MM

•

WIDTH ACROSS FLATS: 4.0 MILLIMETERS NOMINAL MM

•

THREAD TOLERANCE CLASS: 4H5H INTERNAL

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: ISO M

•

PRECIOUS MATERIAL: SILVER

•

THREAD PITCH IN MILLIMETERS: 0.50

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	3.0 MILLIMETERS MAXIMUM MM
WASHER OUTSIDE DIAMETER	6.0 MILLIMETERS NOMINAL MM
WIDTH ACROSS FLATS	4.0 MILLIMETERS NOMINAL MM
THREAD TOLERANCE CLASS	4H5H INTERNAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	ISO M
PRECIOUS MATERIAL	SILVER
THREAD PITCH IN MILLIMETERS	0.50
TEMP RATING	425.0 CELSIUS MAXIMUM DEGC
WASHER THICKNESS	0.5 MILLIMETERS MINIMUM MM

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 2

HM41-030Reference document

Same NSN cross-reference

Reference document — Secondary reference

3000S01508Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 620-857-563-0?

620-857-563-0 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 620-857-563-0?

There are 2 known substitutes for 620-857-563-0: HM41-030, 3000S01508. Substitute compatibility should be verified for your specific system.

What is the NSN for 620-857-563-0?

620-857-563-0 is cataloged in the U.S. Government catalog under NSN 5310-01-231-9346. This indicates validated use in U.S. government and defense supply chains.

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