10388-02673 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

10388-02673: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL COMP 4140 WASHER, nut_style: HEXAGON, overall_height: 25.0 MILLIMETERS NOMINAL MM, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND, width_across_flats: 27.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-616-5300, 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

10388-02673

NSN: 5310-01-616-5300
FSC: 5310 — Nuts and Washers
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)

SPECIFICATIONS

material	STEEL COMP 4140 WASHER
nut_style	HEXAGON
thread_series	M
overall_height	25.0 MILLIMETERS NOMINAL MM
hardness_rating	28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_direction	RIGHT-HAND
width_across_flats	27.0 MILLIMETERS NOMINAL MM
nominal_thread_size	18.0 MILLIMETERS MM
end_item_identification	3930-01-599-9978
washer_outside_diameter	40.3 MILLIMETERS NOMINAL MM
thread_pitch_in_millimeters	1.5
part_name_assigned_by_controlling_agency	NUT,WHEEL M18X1.5
NSN	5310-01-616-5300

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 40.3 MILLIMETERS NOMINAL MM

•

WIDTH ACROSS FLATS: 27.0 MILLIMETERS NOMINAL MM

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: POLYTETRAFLUOROETHYLENE COATED - 240 HOUR SALT SPRAY MFR REF SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: M

•

THREAD PITCH IN MILLIMETERS: 1.5

•

HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	25.0 MILLIMETERS NOMINAL MM
WASHER OUTSIDE DIAMETER	40.3 MILLIMETERS NOMINAL MM
WIDTH ACROSS FLATS	27.0 MILLIMETERS NOMINAL MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	POLYTETRAFLUOROETHYLENE COATED - 240 HOUR SALT SPRAY MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	M
THREAD PITCH IN MILLIMETERS	1.5
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	18.0 MILLIMETERS MM
PART NAME ASSIGNED BY CONTROLLING AGENCY	NUT,WHEEL M18X1.5

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 1

CC-0010472Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 10388-02673?

10388-02673 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.

What parts can replace 10388-02673?

There is 1 known substitute for 10388-02673: CC-0010472. Substitute compatibility should be verified for your specific system.

What is the NSN for 10388-02673?

10388-02673 is cataloged in the U.S. Government catalog under NSN 5310-01-616-5300. This indicates validated use in U.S. government and defense supply chains.

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10388-02673 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

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