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Technical Data Sheet
PartsTable / COMPONENT / 186619
186619 ✓ Verified by PartsTable
Hama · 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,CAP,HEXAGON HEAD is a Hama industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.125 INCHES MAXIMUM IN, fastener_length: 1.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-018-6619, 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
186619
NSN: 5305-00-018-6619
FSC: 5305
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
thread_class2A A
thread_length1.125 INCHES MAXIMUM IN
fastener_length1.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
minimum_yield_strength120 POUNDS PER SQUARE INCH LBS
end_item_identificationMRAP-RG-33 ARMORED UTILITY VEHICLE (AUV); MRAP BUFFALO MK2A2; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
nominal_thread_diameter0.375 INCHES IN
NSN5305-00-018-6619
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 186619 · Hama ⚠ 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: 0.375 INCHES IN
•
HEAD HEIGHT: 0.234 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 0.562 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 10P STYLE AND 8 GRADE
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD HEIGHT0.234 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.562 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 8 GRADE
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A A
FASTENER LENGTH1.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MS90728-61Interchangeable
interchangeable cross-reference
interchangeable
S172BInterchangeable
interchangeable cross-reference
interchangeable
13207E3409FN63Interchangeable
interchangeable cross-reference
interchangeable
7418028Interchangeable
Same NIIN cross-reference
interchangeable
5305PL0950589Interchangeable
Same NIIN cross-reference
interchangeable
S269DInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 186619?
186619 is a SCREW,CAP,HEXAGON HEAD manufactured by Hama.
What parts can replace 186619?
There are 8 known substitutes for 186619: MS90728-61, S172B, 13207E3409FN63 and 5 more. Substitute compatibility should be verified for your specific system.
Is 186619 still available?
186619 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026