3M891-8 — NUT,PLAIN,SLOTTED,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

3M891-8: NUT,PLAIN,SLOTTED,HEXAGON.

The NUT,PLAIN,SLOTTED,HEXAGON is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-130-9048, 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

3M891-8

NSN: 5310-01-130-9048
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	SLOTTED, HEXAGON
nut_height	0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
thread_direction	RIGHT-HAND
countersink_angle	110.0 DEGREES NOMINAL FIRST END
surface_treatment	PASSIVATE OVERALL
width_across_flats	0.732 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
nominal_thread_size	0.500 INCHES IN
bearing_surface_type	WASHER FACED
thread_quantity_per_inch	20
NSN	5310-01-130-9048

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.732 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN

•

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

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.500 INCHES IN

•

NUT HEIGHT: 0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN

•

SURFACE TREATMENT: PASSIVATE OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.732 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.500 INCHES IN
NUT HEIGHT	0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
SURFACE TREATMENT	PASSIVATE OVERALL
COUNTERSINK ANGLE	110.0 DEGREES NOMINAL FIRST END
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 1

10109580Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 3M891-8?

3M891-8 is a NUT,PLAIN,SLOTTED,HEXAGON.

What parts can replace 3M891-8?

There is 1 known substitute for 3M891-8: 10109580. Substitute compatibility should be verified for your specific system.

What is the NSN for 3M891-8?

3M891-8 is cataloged in the U.S. Government catalog under NSN 5310-01-130-9048. This indicates validated use in U.S. government and defense supply chains.

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3M891-8 — NUT,PLAIN,SLOTTED,HEXAGON

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