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407731 — MOUNTING BASE,ELECTRICAL EQUIPME

✓ Government record, cited
Legrand · BOLT SCREW
PRODUCT OVERVIEW

407731: MOUNTING BASE,ELECTRICAL EQUIPME.

MOUNTING BASE,ELECTRICAL EQUIPME. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: KNURLED NO. 4, head_height: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, thread_length: 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-492-9688, 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
407731
NSN: 5305-01-492-9688
NIINs: 014929688, 015342773
FSC: 5305 — Screws
CAGE: 09004 — TRANSISTOR DEVICES INC DIV ASTRODYNE TDI HIGH POWER BUSINESS UNIT (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleKNURLED NO. 4
head_height0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
thread_length0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
fastener_length0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
end_item_identificationMODEL 1256
nominal_thread_diameter0.164 INCHES IN
thread_quantity_per_inch32
NSN5305-01-492-9688
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 407731 · 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
•
HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD STYLE: KNURLED NO. 4
•
THREAD DIRECTION: RIGHT-HAND
•
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: 1
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
FASTENER LENGTH0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
THREAD LENGTH0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD STYLEKNURLED NO. 4
THREAD DIRECTIONRIGHT-HAND
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
INTERNAL DRIVE STYLESLOT
THREAD CLASS3A A
THREAD QUANTITY PER INCH32
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 407731?
407731 is a MOUNTING BASE,ELECTRICAL EQUIPME manufactured by Legrand.
What is the NSN for 407731?
407731 is cataloged in the U.S. Government catalog under NSN 5305-01-492-9688. 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.