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AB44AA128 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AB44AA128: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, thread_length: 0.672 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-175-6867, 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
AB44AA128
NSN: 5305-01-175-6867
FSC: 5305 — Screws
CAGE: 10855 — CARRIER CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_length0.672 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
fastener_length0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNRC
material_document_and_classificationASTM-A-354 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5305-01-175-6867
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AB44AA128 · 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
•
HEAD HEIGHT: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.672 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-354 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
FASTENER LENGTH0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
THREAD LENGTH0.672 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-354 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
THREAD QUANTITY PER INCH32
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
ANSI-B18.3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AB44AA128?
AB44AA128 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace AB44AA128?
There is 1 known substitute for AB44AA128: ANSI-B18.3. Substitute compatibility should be verified for your specific system.
What is the NSN for AB44AA128?
AB44AA128 is cataloged in the U.S. Government catalog under NSN 5305-01-175-6867. This indicates validated use in U.S. government and defense supply chains.
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