H49403-6 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

H49403-6: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CASTELLATED HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.190 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-175-2811, 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

H49403-6

NSN: 5310-01-175-2811
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
nut_style	CASTELLATED HEXAGON
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.190 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
washer_thickness	0.025 INCHES NOMINAL IN
width_across_flats	0.435 INCHES NOMINAL IN
nominal_thread_size	0.375 INCHES IN
washer_outside_diameter	0.579 INCHES NOMINAL IN
thread_quantity_per_inch	24
criticality_code_justification	MATT
NSN	5310-01-175-2811

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.579 INCHES NOMINAL IN

•

WIDTH ACROSS FLATS: 0.435 INCHES NOMINAL IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

CRITICALITY CODE JUSTIFICATION: MATT

•

WASHER THICKNESS: 0.025 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.190 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER	0.579 INCHES NOMINAL IN
WIDTH ACROSS FLATS	0.435 INCHES NOMINAL IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
CRITICALITY CODE JUSTIFICATION	MATT
WASHER THICKNESS	0.025 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
NUT STYLE	CASTELLATED HEXAGON

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 4

SMTE9925-6Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

9131M74P24Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

73783CM624Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

9131M74P04Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 H49403-6?

H49403-6 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.

What parts can replace H49403-6?

There are 4 known substitutes for H49403-6: SMTE9925-6, 9131M74P24, 73783CM624 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for H49403-6?

H49403-6 is cataloged in the U.S. Government catalog under NSN 5310-01-175-2811. This indicates validated use in U.S. government and defense supply chains.

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H49403-6 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

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