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Technical Data Sheet
PartsTable / COMPONENT / AN500B4-4
AN500B4-4 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.250 INCHES MAXIMUM IN, screw_material: COPPER ALLOY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-639-0914, 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
AN500B4-4
NSN: 5305-00-639-0914
FSC: 5305
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.250 INCHES MAXIMUM IN
screw_materialCOPPER ALLOY
fastener_length0.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.112 INCHES IN
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch40
NSN5305-00-639-0914
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN500B4-4 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SCREW MATERIAL: COPPER ALLOY
•
THREAD QUANTITY PER INCH: 40
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
•
FASTENER LENGTH: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
HEAD STYLE: FILLISTER
•
THREAD CLASS: 2A A
•
HEAD DIAMETER: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
•
MINIMUM TENSILE STRENGTH: 55000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
SCREW MATERIALCOPPER ALLOY
THREAD QUANTITY PER INCH40
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
FASTENER LENGTH0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
HEAD STYLEFILLISTER
THREAD CLASS2A A
HEAD DIAMETER0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
HEAD HEIGHT0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
H2212PC31Interchangeable
interchangeable cross-reference
interchangeable
MIL S933Interchangeable
interchangeable cross-reference
interchangeable
GE500D1066Interchangeable
interchangeable cross-reference
interchangeable
A1066Interchangeable
interchangeable cross-reference
interchangeable
A051078163Interchangeable
interchangeable cross-reference
interchangeable
5961004780751Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN500B4-4?
AN500B4-4 is a SCREW,MACHINE.
What parts can replace AN500B4-4?
There are 16 known substitutes for AN500B4-4: H2212PC31, MIL S933, GE500D1066 and 13 more. Substitute compatibility should be verified for your specific system.
Is AN500B4-4 still available?
AN500B4-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026