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10-9943 — 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

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thickness: 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN, hole_diameter: 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN, overall_diameter: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-639-6711, 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
10-9943
NSN: 5310-00-639-6711
FSC: 5310
CAGE: 28839 — TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
hole_diameter0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
overall_diameter0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-639-6711
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-9943 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS
CENTER HOLE SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
HOLE DIAMETER0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
OVERALL DIAMETER0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
T9161357PC10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SF-276 5/16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
GPW3571InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
36-24InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
GGG-C-95 TY2CL2SZ24 IN.InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7900345InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10-9943?
10-9943 is a WASHER,FLAT.
What parts can replace 10-9943?
There are 14 known substitutes for 10-9943: T9161357PC10, SF-276 5/16, GPW3571 and 11 more. Substitute compatibility should be verified for your specific system.
Is 10-9943 still available?
10-9943 is currently cancelled.
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Last verified: September 2026