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235-1-431 — Technical Data Sheet

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— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

CABLE ASSEMBLY,POWER,ELECTRICAL,. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, thickness: 0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN, hole_diameter: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, overall_diameter: 0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-687-7738, 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
235-1-431
NSN: 5310-00-687-7738
FSC: 5310
CAGE: 0D0D0 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
thickness0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
hole_diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
overall_diameter0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationASTM A582,COND A ASSN STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-687-7738
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 235-1-431 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582,COND A ASSN STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
THICKNESS: 0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582,COND A ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
THICKNESS0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
B55-1-1961B48InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
48BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B48InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
30SF48InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SS113InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SL3516InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 235-1-431?
235-1-431 is a CABLE ASSEMBLY,POWER,ELECTRICAL,.
What parts can replace 235-1-431?
There are 20 known substitutes for 235-1-431: B55-1-1961B48, 48B, B48 and 17 more. Substitute compatibility should be verified for your specific system.
Is 235-1-431 still available?
235-1-431 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: September 2026