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Technical Data Sheet
PartsTable / COMPONENT / 549177
549177 ✓ 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 STUD,TURNBUTTON FASTENER is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-619-0843, 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
549177
NSN: 5325-00-619-0843
FSC: 5325
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
special_featuresBRAND NAME DESCRIPTION SUPER MARATHON - 20 GAUGE;ADDITIONAL ITEM INFORMATION SSM 47-1/8 X 60-1/2 X .020,C;REQUIRED MINIMUM ORDER QUANTITY 1;REQUIRED MULTIPLE ORDER QUANTITY 1
NSN5325-00-619-0843
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 549177 · 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
•
HEIGHT: 0.703 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN
•
BUTTON WIDTH: 0.531 INCHES NOMINAL IN
•
BUTTON THICKNESS: 0.312 INCHES NOMINAL IN
•
TURNBUTTON STUD STYLE: PRONG
•
BASE WIDTH: 0.500 INCHES NOMINAL IN
•
BASE LENGTH: 0.750 INCHES NOMINAL IN
•
SOCKET ACCOMMODATED QUANTITY: 1
•
MATERIAL: COPPER ALLOY AND STEEL PIN
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT0.703 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN
BUTTON WIDTH0.531 INCHES NOMINAL IN
BUTTON THICKNESS0.312 INCHES NOMINAL IN
TURNBUTTON STUD STYLEPRONG
BASE WIDTH0.500 INCHES NOMINAL IN
BASE LENGTH0.750 INCHES NOMINAL IN
SOCKET ACCOMMODATED QUANTITY1
MATERIALCOPPER ALLOY AND STEEL PIN
FABRICATION METHODSTAMPED
END LENGTH0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
B410Interchangeable
interchangeable cross-reference
interchangeable
FB59-0437Interchangeable
interchangeable cross-reference
interchangeable
FB59Interchangeable
interchangeable cross-reference
interchangeable
61E660Interchangeable
interchangeable cross-reference
interchangeable
61E660-1Interchangeable
interchangeable cross-reference
interchangeable
60A125E16-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 549177?
549177 is a STUD,TURNBUTTON FASTENER.
What parts can replace 549177?
There are 14 known substitutes for 549177: B410, FB59-0437, FB59 and 11 more. Substitute compatibility should be verified for your specific system.
Is 549177 still available?
549177 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