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57331 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

57331: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include body_style: STRAIGHT SHAPE, shell_type: SOLID, thread_class: 2A A, overall_width: 39.000 INCHES NOMINAL IN, terminal_type: SOLDER TAB, overall_height: 1.187 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-588-0930, 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
57331
NSN: 5315-00-588-0930
NIINs: 005880930, 006611561, 007364498, 012385541, 015788827
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 82423 — KLEINSCHMIDT INC (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE
shell_typeSOLID
thread_class2A A
cell_quantity5
overall_width39.000 INCHES NOMINAL IN
terminal_typeSOLDER TAB
overall_height1.187 INCHES NOMINAL IN
overall_length0.937 INCHES NOMINAL IN
shell_materialSTEEL CORROSION RESISTING
insert_materialPLASTIC SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
overall_diameter0.625 INCHES NOMINAL IN
NSN5315-00-588-0930
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 57331 · 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
SUBSTITUTES & CROSS-REFERENCES 1
SMB314815GP6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 57331?
57331 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 57331?
There is 1 known substitute for 57331: SMB314815GP6. Substitute compatibility should be verified for your specific system.
What is the NSN for 57331?
57331 is cataloged in the U.S. Government catalog under NSN 5315-00-588-0930. 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.