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Technical Data Sheet
PartsTable / COMPONENT / 13-660-00-294
13-660-00-294 ✓ Verified by PartsTable
— · 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

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303S OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL, first_end_style: CHAMFERED, surface_treatment: PASSIVATE OVERALL, pin_overall_length: 3.110 INCHES MINIMUM AND 3.130 INCHES MAXIMUM IN, pin_overall_diameter: 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN, first_end_taper_angle: 45.0 DEGREES NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-721-8382, 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
13-660-00-294
NSN: 5315-00-721-8382
FSC: 5315
CAGE: 78022 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303S OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL
first_end_styleCHAMFERED
surface_treatmentPASSIVATE OVERALL
pin_overall_length3.110 INCHES MINIMUM AND 3.130 INCHES MAXIMUM IN
pin_overall_diameter0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
first_end_taper_angle45.0 DEGREES NOMINAL
first_end_taper_length0.030 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-721-8382
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 13-660-00-294 · 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
•
FIRST END TAPER LENGTH: 0.030 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 303S OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
FIRST END STYLE: CHAMFERED
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END TAPER LENGTH0.030 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 303S OR STEEL COMP 303SE OR STEEL COMP 316 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END STYLECHAMFERED
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.2495 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
PIN OVERALL LENGTH3.110 INCHES MINIMUM AND 3.130 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
648FU1-5AInterchangeable
interchangeable cross-reference
interchangeable
J512Interchangeable
interchangeable cross-reference
interchangeable
A-311Interchangeable
interchangeable cross-reference
interchangeable
SIB-926Interchangeable
interchangeable cross-reference
interchangeable
1111Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13-660-00-294?
13-660-00-294 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 13-660-00-294?
There are 19 known substitutes for 13-660-00-294: SAE-J512, 648FU1-5A, J512 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13-660-00-294?
13-660-00-294 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-721-8382. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026