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310476 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

310476: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include nut_diameter: 0.562 INCHES NOMINAL IN, thread_class: 1B, nut_thickness: 0.297 INCHES NOMINAL IN, thread_series: UNF, thread_direction: RIGHT-HAND, nominal_thread_size: 0.312 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-674-8455, 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
310476
NSN: 5310-00-674-8455
NIINs: 006748455, 016188745
FSC: 5310 — Nuts and Washers
CAGE: 36090 — LOCKHEED MARTIN LIBRASCOPE CORPORATION (USA)
SPECIFICATIONS
nut_diameter0.562 INCHES NOMINAL IN
thread_class1B
nut_thickness0.297 INCHES NOMINAL IN
thread_seriesUNF
thread_directionRIGHT-HAND
nominal_thread_size0.312 INCHES IN
counterbore_diameter0.317 INCHES NOMINAL NUT IN
drilled_hole_diameter0.052 INCHES NOMINAL IN
nut_counterbore_depth0.145 INCHES NOMINAL NUT IN
hole_type_and_quantity2 DRILLED
hole_configuration_styleCONFIGURATION J
thread_quantity_per_inch24
NSN5310-00-674-8455
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 310476 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD SERIES: UNF
•
HOLE CONFIGURATION STYLE: CONFIGURATION J
•
NUT COUNTERBORE DEPTH: 0.145 INCHES NOMINAL NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
NUT DIAMETER: 0.562 INCHES NOMINAL IN
•
COUNTERBORE DIAMETER: 0.317 INCHES NOMINAL NUT IN
•
NUT THICKNESS: 0.297 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
HOLE CONFIGURATION STYLECONFIGURATION J
NUT COUNTERBORE DEPTH0.145 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
NUT DIAMETER0.562 INCHES NOMINAL IN
COUNTERBORE DIAMETER0.317 INCHES NOMINAL NUT IN
NUT THICKNESS0.297 INCHES NOMINAL IN
DRILLED HOLE DIAMETER0.052 INCHES NOMINAL IN
THREAD CLASS1B
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 310476?
310476 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What is the NSN for 310476?
310476 is cataloged in the U.S. Government catalog under NSN 5310-00-674-8455. 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.