03A511-4-8C — BOLT,INTERNAL WRENCHING

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

03A511-4-8C: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.438 INCHES MAXIMUM IN, thread_length: 0.403 INCHES MAXIMUM IN, fastener_length: 0.903 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-478-0564, 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

03A511-4-8C

NSN: 5306-01-478-0564
FSC: 5306 — Bolts
CAGE: 1W025 — NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS (USA)

SPECIFICATIONS

material	TITANIUM ALLOY UNS R56400 OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.438 INCHES MAXIMUM IN
thread_length	0.403 INCHES MAXIMUM IN
fastener_length	0.903 INCHES MAXIMUM IN
special_features	GRIP LENGTH MIN 0.490 MAX 0.510;GRIP DIAMETER MIN 0.2490 MAX 0.2495
thread_direction	RIGHT-HAND
countersink_angle	129.0 DEGREES MINIMUM AND 131.0 DEGREES MAXIMUM
internal_drive_style	TORX
nominal_thread_diameter	0.250 INCHES IN
minimum_tensile_strength	3700 POUNDS PER SQUARE INCH LBS
NSN	5306-01-478-0564

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.903 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.403 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS4928 ASSN STD 1ST MATERIAL RESPONSE OR AMS4967 ASSN STD 2ND MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

MINIMUM TENSILE STRENGTH: 3700 POUNDS PER SQUARE INCH LBS

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.903 INCHES MAXIMUM IN
THREAD LENGTH	0.403 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS4928 ASSN STD 1ST MATERIAL RESPONSE OR AMS4967 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	GRIP LENGTH MIN 0.490 MAX 0.510;GRIP DIAMETER MIN 0.2490 MAX 0.2495
MINIMUM TENSILE STRENGTH	3700 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLE	TORX
COUNTERSINK ANGLE	129.0 DEGREES MINIMUM AND 131.0 DEGREES MAXIMUM

SUBSTITUTES & CROSS-REFERENCES 2

CB9241-4-8CReference document

Same NSN cross-reference

Reference document — Secondary reference

03A511Reference 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 03A511-4-8C?

03A511-4-8C is a BOLT,INTERNAL WRENCHING.

What parts can replace 03A511-4-8C?

There are 2 known substitutes for 03A511-4-8C: CB9241-4-8C, 03A511. Substitute compatibility should be verified for your specific system.

What is the NSN for 03A511-4-8C?

03A511-4-8C is cataloged in the U.S. Government catalog under NSN 5306-01-478-0564. This indicates validated use in U.S. government and defense supply chains.

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