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AN960B616 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AN960B616: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL, thickness: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, hole_diameter: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, overall_diameter: 0.620 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN, surface_treatment: NICKEL OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-167-0704, 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
AN960B616
NSN: 5310-00-167-0704
NIINs: 001670704, 003313225
FSC: 5310 — Nuts and Washers
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
thickness0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
hole_diameter0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
overall_diameter0.620 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN
surface_treatmentNICKEL OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 2 GRADE AND E CLASS
departure_from_cited_designatorAS MODIFIED BY SURFACE TREATMENT
material_document_and_classificationQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-167-0704
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN960B616 · 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
•
OVERALL DIAMETER: 0.620 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
•
THICKNESS: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.620 INCHES MINIMUM AND 0.645 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
THICKNESS0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
NAS1149B663HReference document
Same NSN cross-reference
Reference document — Secondary reference
NAS1149B063HReference document
Same NSN cross-reference
Reference document — Secondary reference
5310001670704Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN960B616?
AN960B616 is a WASHER,FLAT.
What parts can replace AN960B616?
There are 3 known substitutes for AN960B616: NAS1149B663H, NAS1149B063H, 5310001670704. Substitute compatibility should be verified for your specific system.
What is the NSN for AN960B616?
AN960B616 is cataloged in the U.S. Government catalog under NSN 5310-00-167-0704. 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.