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575745-1 — BOLT,INTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

575745-1: BOLT,INTERNALLY RELIEVED BODY.

The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.200 INCHES NOMINAL IN, thread_class: 3A A, hole_diameter: 0.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-172-9449, 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
575745-1
NSN: 5306-00-172-9449
FSC: 5306 — Bolts
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.200 INCHES NOMINAL IN
thread_class3A A
hole_diameter0.063 INCHES NOMINAL IN
hole_quantity3
thread_length0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
fastener_length0.250 INCHES NOMINAL IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
NSN5306-00-172-9449
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 575745-1 · 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: 0.200 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
CONCENTRIC HOLE DEPTH: 0.190 INCHES NOMINAL IN
•
THREAD LENGTH: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: HEXAGON LONGITUDINAL HOLE
•
STYLE DESIGNATOR: CONCENTRIC HOLE UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.200 INCHES NOMINAL IN
FASTENER LENGTH0.250 INCHES NOMINAL IN
CONCENTRIC HOLE DEPTH0.190 INCHES NOMINAL IN
THREAD LENGTH0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 1
685402-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 575745-1?
575745-1 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace 575745-1?
There is 1 known substitute for 575745-1: 685402-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 575745-1?
575745-1 is cataloged in the U.S. Government catalog under NSN 5306-00-172-9449. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.