HN-4-40 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

HN-4-40: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.087 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), hardness_rating: 80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-928-9672, 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

HN-4-40

NSN: 5310-00-928-9672
FSC: 5310 — Nuts and Washers
CAGE: 08289 — THE DELBERT BLINN CO INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	HEXAGON
nut_height	0.087 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
hardness_rating	80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
nominal_thread_size	0.112 INCHES IN
bearing_surface_type	FLAT
thread_quantity_per_inch	40
NSN	5310-00-928-9672

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN

•

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

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

HARDNESS RATING: 80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A563,GRADE A ASSN STD SINGLE MATERIAL RESPONSE OR SAE J995,GRADE 2,UNS K05802 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.112 INCHES IN

•

SPECIFICATION/STANDARD DATA: 81348-FF-N-836 GOVERNMENT SPECIFICATION AND 96906-MS20341/CANCELED/ GOVERNMENT STANDARD

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING	80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A563,GRADE A ASSN STD SINGLE MATERIAL RESPONSE OR SAE J995,GRADE 2,UNS K05802 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.112 INCHES IN
SPECIFICATION/STANDARD DATA	81348-FF-N-836 GOVERNMENT SPECIFICATION AND 96906-MS20341/CANCELED/ GOVERNMENT STANDARD
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND 13 STYLE AND 4-40UNC SIZE
NUT HEIGHT	0.087 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN

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 3

FF-N-836Reference document

Same NSN cross-reference

Reference document — Identification reference

MS20341-4SReference document

Same NSN cross-reference

Reference document — Secondary reference

5310PL1386253Reference 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 HN-4-40?

HN-4-40 is a NUT,PLAIN,HEXAGON.

What parts can replace HN-4-40?

There are 3 known substitutes for HN-4-40: FF-N-836, MS20341-4S, 5310PL1386253. Substitute compatibility should be verified for your specific system.

What is the NSN for HN-4-40?

HN-4-40 is cataloged in the U.S. Government catalog under NSN 5310-00-928-9672. This indicates validated use in U.S. government and defense supply chains.

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