PartsTable
Technical Data Sheet
4066-012-1000 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include head_style: HEADLESS (SETSCREW), point_style: FLAT, thread_class: 3A A, fastener_length: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-229-7995, 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
4066-012-1000
NSN: 5305-01-229-7995
FSC: 5305
CAGE: 28055 — POSITROL INC (USA)
SPECIFICATIONS
materialSTEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
head_styleHEADLESS (SETSCREW)
point_styleFLAT
thread_class3A A
fastener_length0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.125 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
NSN5305-01-229-7995
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4066-012-1000 · 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
WIDTH ACROSS FLATS: 0.125 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
THREAD DIRECTION: RIGHT-HAND
POINT STYLE: FLAT
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
HEAD STYLE: HEADLESS (SETSCREW)
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.125 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD QUANTITY PER INCH20
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 STYLE
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
149495Interchangeable
interchangeable cross-reference
interchangeable
31419Interchangeable
interchangeable cross-reference
interchangeable
FFS92Interchangeable
interchangeable cross-reference
interchangeable
MS5207-279Interchangeable
interchangeable cross-reference
interchangeable
MS51965-58Interchangeable
Same NIIN cross-reference
interchangeable
FF-S-200Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4066-012-1000?
4066-012-1000 is a SETSCREW.
What parts can replace 4066-012-1000?
There are 6 known substitutes for 4066-012-1000: 149495, 31419, FFS92 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4066-012-1000?
4066-012-1000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-229-7995. This indicates validated use in U.S. government and defense supply chains.
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