NK340-8 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

NK340-8: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-003-9348, 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

NK340-8

NSN: 5310-00-003-9348
FSC: 5310 — Nuts and Washers
CAGE: 26233 — NYLOK LLC (USA)

SPECIFICATIONS

material	PLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_style	HEXAGON
nut_height	0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
temp_rating	250.0 FAHRENHEIT NOMINAL DEGF
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
countersink_angle	110.0 DEGREES NOMINAL NUT
surface_treatment	CADMIUM OVERALL EXCEPT INSERT
width_across_flats	0.332 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
nominal_thread_size	0.164 INCHES IN
NSN	5310-00-003-9348

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.332 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE NUT

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.164 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.332 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
TEMP RATING	250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD SINGLE MATERIAL RESPONSE NUT
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.164 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT	0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
SURFACE TREATMENT	CADMIUM OVERALL EXCEPT INSERT

OTHER ITEMS IN FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-001-5340 5310-00-004-4584 5310-00-004-5157 5310-00-004-7045 5310-00-004-7046 5310-00-005-4375 5310-00-006-8067 5310-00-007-2907

SUBSTITUTES & CROSS-REFERENCES 1

GN510P08Reference document

Same NSN cross-reference

Reference document — Vendor item drawing 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 NK340-8?

NK340-8 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace NK340-8?

There is 1 known substitute for NK340-8: GN510P08. Substitute compatibility should be verified for your specific system.

What is the NSN for NK340-8?

NK340-8 is cataloged in the U.S. Government catalog under NSN 5310-00-003-9348. This indicates validated use in U.S. government and defense supply chains.

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NK340-8 — NUT,SELF-LOCKING,HEXAGON

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