74640-3 — NUT,PLAIN,SLOTTED,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

74640-3: NUT,PLAIN,SLOTTED,HEXAGON.

The NUT,PLAIN,SLOTTED,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.188 INCHES NOMINAL IN, 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 5310-01-005-4029, 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

74640-3

NSN: 5310-01-005-4029
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	SLOTTED, HEXAGON
nut_height	0.188 INCHES NOMINAL IN
temp_rating	450.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
thread_direction	RIGHT-HAND
countersink_angle	110.0 DEGREES NOMINAL NUT
surface_treatment	CADMIUM OVERALL
width_across_flats	0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
nominal_thread_size	0.190 INCHES IN
bearing_surface_type	WASHER FACED
NSN	5310-01-005-4029

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.190 INCHES IN

•

NUT HEIGHT: 0.188 INCHES NOMINAL IN

•

SURFACE TREATMENT: CADMIUM OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	450.0 FAHRENHEIT NOMINAL DEGF
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.190 INCHES IN
NUT HEIGHT	0.188 INCHES NOMINAL IN
SURFACE TREATMENT	CADMIUM OVERALL
COUNTERSINK ANGLE	110.0 DEGREES NOMINAL NUT
NUT STYLE	SLOTTED, 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 5

10121934Reference document

Same NSN cross-reference

Reference document — Informative reference only

E10079-3Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

STM3M404-3Reference document

Same NSN cross-reference

Reference document — Secondary reference

ST3M404-3Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

3930AS1151-A3Reference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 74640-3?

74640-3 is a NUT,PLAIN,SLOTTED,HEXAGON.

What parts can replace 74640-3?

There are 5 known substitutes for 74640-3: 10121934, E10079-3, STM3M404-3 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 74640-3?

74640-3 is cataloged in the U.S. Government catalog under NSN 5310-01-005-4029. This indicates validated use in U.S. government and defense supply chains.

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74640-3 — NUT,PLAIN,SLOTTED,HEXAGON

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