06657-179 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

06657-179: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.720 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, thread_length: 5.75 INCHES NOMINAL IN, fastener_length: 5.984 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-699-9905, 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

06657-179

NSN: 5305-01-699-9905
FSC: 5305 — Screws
CAGE: 21439 — CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.720 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
thread_length	5.75 INCHES NOMINAL IN
fastener_length	5.984 INCHES NOMINAL IN
special_features	0.375-16 UNC-3A, 5.75LG ZINC PLATED STEEL. A
thread_direction	RIGHT-HAND
countersink_angle	80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
surface_treatment	ZINC OVERALL
width_across_flats	0.62 INCHES NOMINAL IN
internal_drive_style	HEXAGON
NSN	5305-01-699-9905

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.62 INCHES NOMINAL IN

•

FASTENER LENGTH: 5.984 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B 633 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL

•

THREAD LENGTH: 5.75 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.62 INCHES NOMINAL IN
FASTENER LENGTH	5.984 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B 633 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH	5.75 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	0.375-16 UNC-3A, 5.75LG ZINC PLATED STEEL. A
SURFACE TREATMENT	ZINC OVERALL
INTERNAL DRIVE STYLE	HEXAGON

SUBSTITUTES & CROSS-REFERENCES 2

MS24667 REV DReference document

Same NSN cross-reference

Reference document — Secondary reference

NASM24667Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 06657-179?

06657-179 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 06657-179?

There are 2 known substitutes for 06657-179: MS24667 REV D, NASM24667. Substitute compatibility should be verified for your specific system.

What is the NSN for 06657-179?

06657-179 is cataloged in the U.S. Government catalog under NSN 5305-01-699-9905. This indicates validated use in U.S. government and defense supply chains.

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06657-179 — SCREW,CAP,SOCKET HEAD

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