PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 11780043
11780043 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT CHAMFER, head_height: 0.126 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN, thread_length: 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-081-8911, 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
11780043
NSN: 5305-01-081-8911
FSC: 5305
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT CHAMFER
head_height0.126 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
thread_length0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
fastener_length0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleW/O INTERNAL DRIVE
nominal_thread_diameter0.138 INCHES IN
first_diameter_from_head0.094 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
NSN5305-01-081-8911
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11780043 · 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
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD CLASS: 2A A
•
INTERNAL DRIVE STYLE: W/O INTERNAL DRIVE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.138 INCHES IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD CLASS2A A
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
HEAD HEIGHT0.126 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
20882P11Interchangeable
interchangeable cross-reference
interchangeable
PGF-10144-8Interchangeable
interchangeable cross-reference
interchangeable
E-3373 PIECE 7Interchangeable
interchangeable cross-reference
interchangeable
423201Interchangeable
interchangeable cross-reference
interchangeable
E-3373Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11780043?
11780043 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 11780043?
There are 5 known substitutes for 11780043: 20882P11, PGF-10144-8, E-3373 PIECE 7 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11780043?
11780043 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-081-8911. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026