4-40UNC2AX3-8 — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

4-40UNC2AX3-8: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, fastener_length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-027-8957, 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

4-40UNC2AX3-8

NSN: 5305-01-027-8957
NIINs: 010278957, 012533110
FSC: 5305 — Screws
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)

SPECIFICATIONS

material	STEEL COMP 303SE OR STEEL COMP 304L OR STEEL COMP 302B OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OVERALL
head_style	HEXAGON
head_height	0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
thread_class	2A A
thread_length	0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
fastener_length	0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
hardness_rating	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
locking_feature	PATCH OR STRIP THREADS
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE OVERALL
width_between_flats	0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
internal_drive_style	W/O INTERNAL DRIVE
NSN	5305-01-027-8957

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN

•

HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.112 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.049 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
FASTENER LENGTH	0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.310 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.181 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
LOCKING FEATURE	PATCH OR STRIP THREADS

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 4-40UNC2AX3-8?

4-40UNC2AX3-8 is a SCREW,MACHINE.

What is the NSN for 4-40UNC2AX3-8?

4-40UNC2AX3-8 is cataloged in the U.S. Government catalog under NSN 5305-01-027-8957. This indicates validated use in U.S. government and defense supply chains.

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4-40UNC2AX3-8 — SCREW,MACHINE

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