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Technical Data Sheet
PartsTable / COMPONENT / TMC49-23
TMC49-23 ✓ 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: 0.046 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.181 INCHES NOMINAL IN, thread_length: 0.654 INCHES MINIMUM IN, screw_material: STEEL CORROSION RESISTING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-803-9098, 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
TMC49-23
NSN: 5305-00-803-9098
FSC: 5305
CAGE: D2295 — ASTRO-TECHNIK GMBH (DEU)
SPECIFICATIONS
head_styleBINDING
head_height0.046 INCHES NOMINAL IN
thread_class2A A
head_diameter0.181 INCHES NOMINAL IN
thread_length0.654 INCHES MINIMUM IN
screw_materialSTEEL CORROSION RESISTING
fastener_length0.690 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.086 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch56
NSN5305-00-803-9098
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: TMC49-23 · 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: 0.654 INCHES MINIMUM IN
•
HEAD DIAMETER: 0.181 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 56
•
NOMINAL THREAD DIAMETER: 0.086 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
•
INTERNAL DRIVE STYLE: SLOT
•
SCREW SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.654 INCHES MINIMUM IN
HEAD DIAMETER0.181 INCHES NOMINAL IN
THREAD QUANTITY PER INCH56
NOMINAL THREAD DIAMETER0.086 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A A
INTERNAL DRIVE STYLESLOT
SCREW SURFACE TREATMENTPASSIVATE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
FASTENER LENGTH0.690 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
050-003663Interchangeable
interchangeable cross-reference
interchangeable
205-008-002Interchangeable
interchangeable cross-reference
interchangeable
1828X5Interchangeable
interchangeable cross-reference
interchangeable
5524FInterchangeable
interchangeable cross-reference
interchangeable
6721Interchangeable
interchangeable cross-reference
interchangeable
S685-17-280Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TMC49-23?
TMC49-23 is a SCREW,MACHINE.
What parts can replace TMC49-23?
There are 11 known substitutes for TMC49-23: 050-003663, 205-008-002, 1828X5 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TMC49-23?
TMC49-23 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-803-9098. 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