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Technical Data Sheet
PartsTable / COMPONENT / AN961-6T
AN961-6T ✓ 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 material: COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL, thickness: 0.026 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, hole_diameter: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN, overall_diameter: 0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, surface_treatment: TIN OVERALL, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-136-1472, 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
AN961-6T
NSN: 5310-00-136-1472
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL
thickness0.026 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
hole_diameter0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
overall_diameter0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
surface_treatmentTIN OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-T-10727,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-136-1472
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN961-6T · 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
•
HOLE DIAMETER: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-T-10727,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: TIN OVERALL
•
MATERIAL: COPPER ALLOY 268 OR COPPER ALLOY 270 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-321,1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626,1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
THICKNESS: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTTIN OVERALL
MATERIALCOPPER ALLOY 268 OR COPPER ALLOY 270 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-321,1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626,1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
5310PL0787116Interchangeable
interchangeable cross-reference
interchangeable
512-95NInterchangeable
interchangeable cross-reference
interchangeable
5310001361472Interchangeable
Same NIIN cross-reference
interchangeable
10116567Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN961-6T?
AN961-6T is a WASHER,FLAT.
What parts can replace AN961-6T?
There are 4 known substitutes for AN961-6T: 5310PL0787116, 512-95N, 5310001361472 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN961-6T?
AN961-6T is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-136-1472. 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