MS51970-4 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

MS51970-4: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL, nut_style: HEXAGON, nut_height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-903-3993, 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

MS51970-4

NSN: 5310-00-903-3993
FSC: 5310 — Nuts and Washers
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

material	COPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL
nut_style	HEXAGON
nut_height	0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_class	2B
thread_series	UNF
thread_direction	RIGHT-HAND
surface_treatment	OXIDE OVERALL
width_across_flats	0.6750 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN
nominal_thread_size	0.438 INCHES IN
bearing_surface_type	CHAMFERED OR WASHER FACED
thread_quantity_per_inch	20
material_document_and_classification	QQ-B-637,COMP 462 OR 464 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN	5310-00-903-3993

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.6750 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNF

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-637,COMP 462 OR 464 FED SPEC ALL MATERIAL RESPONSES OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.438 INCHES IN

•

NUT HEIGHT: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN

•

SURFACE TREATMENT: OXIDE OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.6750 INCHES MINIMUM AND 0.6875 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNF
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-B-637,COMP 462 OR 464 FED SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.438 INCHES IN
NUT HEIGHT	0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SURFACE TREATMENT	OXIDE OVERALL
NUT STYLE	HEXAGON
THREAD CLASS	2B

SUBSTITUTES & CROSS-REFERENCES 3

324951Reference document

Same NSN cross-reference

Reference document — Secondary reference

FFN836Reference document

Same NSN cross-reference

Reference document — Replaced / superseded reference

114544Reference 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 MS51970-4?

MS51970-4 is a NUT,PLAIN,HEXAGON.

What parts can replace MS51970-4?

There are 3 known substitutes for MS51970-4: 324951, FFN836, 114544. Substitute compatibility should be verified for your specific system.

What is the NSN for MS51970-4?

MS51970-4 is cataloged in the U.S. Government catalog under NSN 5310-00-903-3993. This indicates validated use in U.S. government and defense supply chains.

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MS51970-4 — NUT,PLAIN,HEXAGON

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