KFN673-7 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

KFN673-7: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HEXAGON, lubrication: DRY FILM LUBRICANT, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.410 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-513-9849, 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

KFN673-7

NSN: 5310-01-513-9849
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
nut_style	HEXAGON
lubrication	DRY FILM LUBRICANT
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.410 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
washer_thickness	0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
surface_treatment	CADMIUM OVERALL
width_across_flats	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
nominal_thread_size	0.437 INCHES IN
end_item_identification	CL-215, AIRCRAFT
NSN	5310-01-513-9849

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

WASHER OUTSIDE DIAMETER: 0.727 INCHES MINIMUM AND 0.733 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-410, TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

WASHER THICKNESS: 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5639 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5697 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
OVERALL HEIGHT	0.410 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.727 INCHES MINIMUM AND 0.733 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-410, TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
WASHER THICKNESS	0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5639 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5697 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.437 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 1

B0203014-7Same 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 KFN673-7?

KFN673-7 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.

What parts can replace KFN673-7?

There is 1 known substitute for KFN673-7: B0203014-7. Substitute compatibility should be verified for your specific system.

What is the NSN for KFN673-7?

KFN673-7 is cataloged in the U.S. Government catalog under NSN 5310-01-513-9849. This indicates validated use in U.S. government and defense supply chains.

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KFN673-7 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

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