21NTU058 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

21NTU058: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 NUT, nut_style: HEXAGON, nut_height: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-013-7709, 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

21NTU058

NSN: 5310-00-013-7709
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)

SPECIFICATIONS

material	STEEL COMP 1212 NUT
nut_style	HEXAGON
nut_height	0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
temp_rating	250.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL COARSE (UNC)
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
surface_treatment	ZINC OVERALL EXCEPT INSERT
width_across_flats	0.551 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN
nominal_thread_size	0.312 INCHES IN
bearing_surface_type	CHAMFERED
NSN	5310-00-013-7709

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.551 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY 1,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: MIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.312 INCHES IN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.551 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-Z-325,TY 1,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	MIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5010 ASSN STD SINGLE MATERIAL RESPONSE NUT
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.312 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT	0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 3

2533409PC11Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

2533409PC10Reference document

Same NSN cross-reference

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

2533409-11Reference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 21NTU058?

21NTU058 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace 21NTU058?

There are 3 known substitutes for 21NTU058: 2533409PC11, 2533409PC10, 2533409-11. Substitute compatibility should be verified for your specific system.

What is the NSN for 21NTU058?

21NTU058 is cataloged in the U.S. Government catalog under NSN 5310-00-013-7709. This indicates validated use in U.S. government and defense supply chains.

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