PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 12577041
12577041 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-303-9275, 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
12577041
NSN: 5305-01-303-9275
FSC: 5305
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
Part Number12577041
NSN5305-01-303-9275
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12577041 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
S-25 ALL BRONZE/3-4IN FLANGEInterchangeable
interchangeable cross-reference
interchangeable
106192 W/ 3/4IN FLANGESInterchangeable
interchangeable cross-reference
interchangeable
SERIES 100-AB W/3/4 IN.FLANGESInterchangeable
interchangeable cross-reference
interchangeable
B75-68Interchangeable
interchangeable cross-reference
interchangeable
B75Interchangeable
interchangeable cross-reference
interchangeable
2939237-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12577041?
12577041 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 12577041?
There are 11 known substitutes for 12577041: S-25 ALL BRONZE/3-4IN FLANGE, 106192 W/ 3/4IN FLANGES, SERIES 100-AB W/3/4 IN.FLANGES and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12577041?
12577041 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-303-9275. 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