298538 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

Hama · NUT WASHER

PRODUCT OVERVIEW

298538: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a Hama industrial component. Key specifications include nut_style: HEXAGON, nut_height: 0.391 INCHES MINIMUM AND 0.421 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. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-241-6640, 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

298538

NSN: 5310-00-241-6640
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)

SPECIFICATIONS

nut_style	HEXAGON
nut_height	0.391 INCHES MINIMUM AND 0.421 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
countersink_angle	88.0 DEGREES NOMINAL NUT
surface_treatment	PASSIVATE NUT
width_across_flats	0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
nominal_thread_size	0.375 INCHES IN
bearing_surface_type	CHAMFERED
NSN	5310-00-241-6640

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN

•

BEARING SURFACE FINISH: 125.0 MICROINCHES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF

•

MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES NUT

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
BEARING SURFACE FINISH	125.0 MICROINCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
TEMP RATING	250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES NUT
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT

SUBSTITUTES & CROSS-REFERENCES 4

131-471Reference document

Same NSN cross-reference

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

T8004943-7Reference document

Same NSN cross-reference

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

MS16228-6CSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MS16229-3CReference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 298538?

298538 is a NUT,SELF-LOCKING,HEXAGON manufactured by Hama.

What parts can replace 298538?

There are 4 known substitutes for 298538: 131-471, T8004943-7, MS16228-6C and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 298538?

298538 is cataloged in the U.S. Government catalog under NSN 5310-00-241-6640. This indicates validated use in U.S. government and defense supply chains.

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298538 — NUT,SELF-LOCKING,HEXAGON

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