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Technical Data Sheet
PartsTable / COMPONENT / 57-3047
57-3047 ✓ Verified by PartsTable
Legrand · 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

Product Mechanism supplied with rocker plate, to be equipped with support frame and surround plate<br><br>Equipped with blue LED. Key specifications include head_style: KNURLED NO. 1, head_height: 0.074 INCHES NOMINAL IN, point_style: FLAT, thread_class: 2A A, head_diameter: 0.219 INCHES NOMINAL IN, thread_length: 0.105 INCHES MINIMUM IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-206-6051, 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
57-3047
NSN: 5305-00-206-6051
FSC: 5305
CAGE: 77885 — SEEBURG CORP THE SEEBURG PRODUCTS DIV (USA)
SPECIFICATIONS
head_styleKNURLED NO. 1
head_height0.074 INCHES NOMINAL IN
point_styleFLAT
thread_class2A A
head_diameter0.219 INCHES NOMINAL IN
thread_length0.105 INCHES MINIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.345 INCHES NOMINAL IN
shoulder_length0.240 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.113 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5305-00-206-6051
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 57-3047 · Legrand ⚠ 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
•
THREAD LENGTH: 0.105 INCHES MINIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
SHOULDER LENGTH: 0.240 INCHES NOMINAL FIRST SHOULDER IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD QUANTITY PER INCH: 56
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18732 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
POINT STYLE: FLAT
•
HEAD DIAMETER: 0.219 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.105 INCHES MINIMUM IN
THREAD DIRECTIONRIGHT-HAND
SHOULDER LENGTH0.240 INCHES NOMINAL FIRST SHOULDER IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD QUANTITY PER INCH56
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18732 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
POINT STYLEFLAT
HEAD DIAMETER0.219 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
HEAD STYLEKNURLED NO. 1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
21NE-066Interchangeable
interchangeable cross-reference
interchangeable
SN-6Interchangeable
interchangeable cross-reference
interchangeable
149493Interchangeable
interchangeable cross-reference
interchangeable
34274Interchangeable
interchangeable cross-reference
interchangeable
9418216Interchangeable
interchangeable cross-reference
interchangeable
5253-635Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57-3047?
57-3047 is a THUMBSCREW manufactured by Legrand.
What parts can replace 57-3047?
There are 12 known substitutes for 57-3047: 21NE-066, SN-6, 149493 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 57-3047?
57-3047 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-206-6051. 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