PartsTable
Technical Data Sheet
PartsTable / COMPONENT / LS12906-63
LS12906-63 ✓ 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: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.333 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, thread_length: 0.824 INCHES MINIMUM AND 0.917 INCHES MAXIMUM IN, screw_material: COPPER ALLOY, fastener_length: 0.969 INCHES MINIMUM AND 1.000 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 5305-00-418-2533, 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
LS12906-63
NSN: 5305-00-418-2533
FSC: 5305
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.333 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_length0.824 INCHES MINIMUM AND 0.917 INCHES MAXIMUM IN
screw_materialCOPPER ALLOY
fastener_length0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.190 INCHES IN
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch32
NSN5305-00-418-2533
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LS12906-63 · 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: 0.824 INCHES MINIMUM AND 0.917 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
SCREW MATERIAL: COPPER ALLOY
•
THREAD SERIES DESIGNATOR: UNF
•
TEST DATA DOCUMENT: 36659-LC+72-1238 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
•
FASTENER LENGTH: 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.333 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.824 INCHES MINIMUM AND 0.917 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
NOMINAL THREAD DIAMETER0.190 INCHES IN
SCREW MATERIALCOPPER ALLOY
THREAD SERIES DESIGNATORUNF
TEST DATA DOCUMENT36659-LC+72-1238 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
FASTENER LENGTH0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
HEAD DIAMETER0.333 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THREAD CLASS2A A
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
178554-6Interchangeable
interchangeable cross-reference
interchangeable
110488Interchangeable
interchangeable cross-reference
interchangeable
5305009140245Interchangeable
interchangeable cross-reference
interchangeable
FFS92Interchangeable
Same NIIN cross-reference
interchangeable
AN500-10-10Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy LS12906-63?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is LS12906-63?
LS12906-63 is a SCREW,MACHINE.
What parts can replace LS12906-63?
There are 5 known substitutes for LS12906-63: 178554-6, 110488, 5305009140245 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LS12906-63?
LS12906-63 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-418-2533. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — LS12906-63

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026