FN26M1018 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

FN26M1018: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 8740 OR STEEL COMP H11 OVERALL, nut_style: DOUBLE HEXAGON, lubrication: DRY FILM LUBRICANT, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-112-1387, 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

FN26M1018

NSN: 5310-00-112-1387
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL COMP 8740 OR STEEL COMP H11 OVERALL
nut_style	DOUBLE HEXAGON
lubrication	DRY FILM LUBRICANT
temp_rating	450.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.875 INCHES MAXIMUM IN
hardness_rating	43.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.047 INCHES MINIMUM IN
surface_treatment	CADMIUM OVERALL
NSN	5310-00-112-1387

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

WASHER OUTSIDE DIAMETER: 1.195 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF

•

HARDNESS RATING: 43.0 ROCKWELL C MAXIMUM

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
OVERALL HEIGHT	0.875 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	1.195 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	450.0 FAHRENHEIT NOMINAL DEGF
HARDNESS RATING	43.0 ROCKWELL C MAXIMUM
WASHER THICKNESS	0.047 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6485 ASSN STD 2ND MATERIAL RESPONSE OVERALL

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

RMLH6426T108Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 FN26M1018?

FN26M1018 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace FN26M1018?

There is 1 known substitute for FN26M1018: RMLH6426T108. Substitute compatibility should be verified for your specific system.

What is the NSN for FN26M1018?

FN26M1018 is cataloged in the U.S. Government catalog under NSN 5310-00-112-1387. This indicates validated use in U.S. government and defense supply chains.

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FN26M1018 — NUT,SELF-LOCKING,EXTENDED WASHER

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