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PartsTable / COMPONENT / AN960XC4
AN960XC4 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include color: BLACK OVERALL, material: STEEL CORROSION RESISTING OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL, thickness: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN, hole_diameter: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, overall_diameter: 0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, surface_treatment: OXIDE FILM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-001-4858, 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
AN960XC4
NSN: 5310-00-001-4858
FSC: 5310
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
colorBLACK OVERALL
materialSTEEL CORROSION RESISTING OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL
thickness0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
hole_diameter0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
overall_diameter0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
surface_treatmentOXIDE FILM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 1 GRADE AND B CLASS
material_document_and_classificationMIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-001-4858
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN960XC4 · 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: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
COLOR: BLACK OVERALL
•
OVERALL DIAMETER: 0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND B CLASS
•
THICKNESS: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
COLORBLACK OVERALL
OVERALL DIAMETER0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND B CLASS
THICKNESS0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
FFW92Interchangeable
Same NIIN cross-reference
interchangeable
21125315900Interchangeable
Same NIIN cross-reference
interchangeable
10116489Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN960XC4?
AN960XC4 is a WASHER,FLAT.
What parts can replace AN960XC4?
There are 3 known substitutes for AN960XC4: FFW92, 21125315900, 10116489. Substitute compatibility should be verified for your specific system.
What is the NSN for AN960XC4?
AN960XC4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-001-4858. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026