S-21298-79 — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

S-21298-79: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.053 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN, thread_length: 0.375 INCHES NOMINAL IN, screw_material: STEEL CORROSION RESISTING. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-436-9360, 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

S-21298-79

NSN: 5305-01-436-9360
FSC: 5305 — Screws
CAGE: 26233 — NYLOK LLC (USA)

SPECIFICATIONS

head_style	ROUND
head_height	0.053 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
thread_class	2A A
head_diameter	0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
thread_length	0.375 INCHES NOMINAL IN
screw_material	STEEL CORROSION RESISTING
fastener_length	0.375 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
internal_drive_style	CROSS RECESS TYPE II
nominal_thread_diameter	0.164 INCHES IN
screw_surface_treatment	PASSIVATE
thread_quantity_per_inch	32
NSN	5305-01-436-9360

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.053 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN

•

LOCKING FEATURE MATERIAL DOCUMENT AND CLASSIFICATION: MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE

•

SCREW SURFACE TREATMENT: PASSIVATE

•

FASTENER LENGTH: 0.375 INCHES NOMINAL IN

•

SCREW MATERIAL DOCUMENT AND CLASSIFICATION: MS1957 MIL STD SINGLE MATERIAL RESPONSE

•

THREAD LENGTH: 0.375 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.164 INCHES IN

•

HEAD STYLE: ROUND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.053 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
LOCKING FEATURE MATERIAL DOCUMENT AND CLASSIFICATION	MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT	PASSIVATE
FASTENER LENGTH	0.375 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION	MS1957 MIL STD SINGLE MATERIAL RESPONSE
THREAD LENGTH	0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD STYLE	ROUND
THREAD DIRECTION	RIGHT-HAND
SCREW MATERIAL	STEEL CORROSION RESISTING

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 1

531118-79Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is S-21298-79?

S-21298-79 is a SCREW,MACHINE.

What parts can replace S-21298-79?

There is 1 known substitute for S-21298-79: 531118-79. Substitute compatibility should be verified for your specific system.

What is the NSN for S-21298-79?

S-21298-79 is cataloged in the U.S. Government catalog under NSN 5305-01-436-9360. This indicates validated use in U.S. government and defense supply chains.

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