AN503-8-4 — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

AN503-8-4: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, hole_diameter: 0.046 INCHES NOMINAL IN, thread_length: 0.094 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-264-2220, 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

AN503-8-4

NSN: 5305-00-264-2220
FSC: 5305 — Screws
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)

SPECIFICATIONS

head_style	FILLISTER
head_height	0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
hole_diameter	0.046 INCHES NOMINAL IN
hole_quantity	1
thread_length	0.094 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
screw_material	STEEL COMP 8630
fastener_length	0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
hardness_rating	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_direction	RIGHT-HAND
internal_drive_style	CROSS RECESS TYPE 1
NSN	5305-00-264-2220

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN

•

SCREW SURFACE TREATMENT: CADMIUM

•

FASTENER LENGTH: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN

•

SCREW MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE

•

THREAD LENGTH: 0.094 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN

•

HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

NOMINAL THREAD DIAMETER: 0.164 INCHES IN

•

HEAD STYLE: FILLISTER

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.106 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
SCREW SURFACE TREATMENT	CADMIUM
FASTENER LENGTH	0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE
THREAD LENGTH	0.094 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD STYLE	FILLISTER
THREAD DIRECTION	RIGHT-HAND
SCREW MATERIAL	STEEL COMP 8630

SUBSTITUTES & CROSS-REFERENCES 1

218092Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 AN503-8-4?

AN503-8-4 is a SCREW,MACHINE.

What parts can replace AN503-8-4?

There is 1 known substitute for AN503-8-4: 218092. Substitute compatibility should be verified for your specific system.

What is the NSN for AN503-8-4?

AN503-8-4 is cataloged in the U.S. Government catalog under NSN 5305-00-264-2220. This indicates validated use in U.S. government and defense supply chains.

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