2121 2622-491 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

2121 2622-491: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 10.9 OVERALL, head_style: FLAT COUNTERSUNK, head_height: 5.563 MILLIMETERS MINIMUM AND 6.200 MILLIMETERS MAXIMUM MM, thread_class: 6G G, head_diameter: 19.22 MILLIMETERS MINIMUM AND 20.69 MILLIMETERS MAXIMUM MM, thread_length: 19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-733-4576, 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

2121 2622-491

NSN: 5305-01-733-4576
FSC: 5305 — Screws
CAGE: AC90N — BAE SYSTEMS HAGGLUNDS AKTIEBOLAG (SWE)

SPECIFICATIONS

material	STEEL PROPERTY CLASS 10.9 OVERALL
head_style	FLAT COUNTERSUNK
head_height	5.563 MILLIMETERS MINIMUM AND 6.200 MILLIMETERS MAXIMUM MM
thread_class	6G G
head_diameter	19.22 MILLIMETERS MINIMUM AND 20.69 MILLIMETERS MAXIMUM MM
thread_length	19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM
fastener_length	19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM
thread_direction	RIGHT-HAND
countersink_angle	90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM
surface_treatment	ZINC NICKEL OVERALL
width_across_flats	6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM MM
internal_drive_style	HEXAGON
NSN	5305-01-733-4576

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM MM

•

HEAD HEIGHT: 5.563 MILLIMETERS MINIMUM AND 6.200 MILLIMETERS MAXIMUM MM

•

FASTENER LENGTH: 19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ISO 4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD PITCH IN MILLIMETERS: 1.5

•

THREAD LENGTH: 19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM

•

MATERIAL DOCUMENT AND CLASSIFICATION: ISO 898-1 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS MM

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM MM
HEAD HEIGHT	5.563 MILLIMETERS MINIMUM AND 6.200 MILLIMETERS MAXIMUM MM
FASTENER LENGTH	19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ISO 4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD PITCH IN MILLIMETERS	1.5
THREAD LENGTH	19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM
MATERIAL DOCUMENT AND CLASSIFICATION	ISO 898-1 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	10.0 MILLIMETERS MM
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND

SUBSTITUTES & CROSS-REFERENCES 1

ISO10642Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 2121 2622-491?

2121 2622-491 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 2121 2622-491?

There is 1 known substitute for 2121 2622-491: ISO10642. Substitute compatibility should be verified for your specific system.

What is the NSN for 2121 2622-491?

2121 2622-491 is cataloged in the U.S. Government catalog under NSN 5305-01-733-4576. This indicates validated use in U.S. government and defense supply chains.

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