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Technical Data Sheet
PartsTable / COMPONENT / EE2-1-6-6
EE2-1-6-6 ✓ 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: BINDING, head_height: 0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, thread_length: 0.375 INCHES MINIMUM IN, screw_material: COPPER ALLOY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-149-9878, 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
EE2-1-6-6
NSN: 5305-00-149-9878
FSC: 5305
CAGE: 36378 — RAYTHEON TECHNICAL SERVICES COMPANY (USA)
SPECIFICATIONS
head_styleBINDING
head_height0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
thread_length0.375 INCHES MINIMUM IN
screw_materialCOPPER ALLOY
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentNICKEL
thread_quantity_per_inch32
NSN5305-00-149-9878
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: EE2-1-6-6 · 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
•
THREAD LENGTH: 0.375 INCHES MINIMUM IN
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HEAD STYLE: BINDING
•
THREAD QUANTITY PER INCH: 32
•
HEAD HEIGHT: 0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: NICKEL
•
HEAD DIAMETER: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.375 INCHES MINIMUM IN
INTERNAL DRIVE STYLESLOT
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD STYLEBINDING
THREAD QUANTITY PER INCH32
HEAD HEIGHT0.071 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTNICKEL
HEAD DIAMETER0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
FASTENER LENGTH0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4038Interchangeable
interchangeable cross-reference
interchangeable
91J2R2Interchangeable
interchangeable cross-reference
interchangeable
21748Interchangeable
interchangeable cross-reference
interchangeable
L-4038Interchangeable
interchangeable cross-reference
interchangeable
00W00891Interchangeable
interchangeable cross-reference
interchangeable
CP-360RSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EE2-1-6-6?
EE2-1-6-6 is a SCREW,MACHINE.
What parts can replace EE2-1-6-6?
There are 17 known substitutes for EE2-1-6-6: 4038, 91J2R2, 21748 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for EE2-1-6-6?
EE2-1-6-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-149-9878. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026