H49820-3 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

H49820-3: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), hardness_rating: 32.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM, locking_feature: PREVAILING TORQUE ALL METAL DESIGN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-068-1886, 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

H49820-3

NSN: 5310-01-068-1886
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating	32.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.045 INCHES NOMINAL IN
surface_treatment	SILVER OVERALL
width_across_flats	0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
nominal_thread_size	0.190 INCHES IN
washer_outside_diameter	0.320 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
thread_quantity_per_inch	32
NSN	5310-01-068-1886

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.320 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM

•

WASHER THICKNESS: 0.045 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WASHER OUTSIDE DIAMETER	0.320 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
WASHER THICKNESS	0.045 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.190 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN

SUBSTITUTES & CROSS-REFERENCES 5

387526Reference document

Same NSN cross-reference

Reference document — Secondary reference

387525Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

387523Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

387254Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

FN1216-1032Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

Ready to buy H49820-3?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is H49820-3?

H49820-3 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace H49820-3?

There are 5 known substitutes for H49820-3: 387526, 387525, 387523 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for H49820-3?

H49820-3 is cataloged in the U.S. Government catalog under NSN 5310-01-068-1886. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

H49820-3 — NUT,SELF-LOCKING,EXTENDED WASHER

Request a Quote — H49820-3