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10-40703-9 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10-40703-9: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2017 OVERALL, recess_angle: 120.0 DEGREES NOMINAL, recess_depth: 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, hole_diameter: 0.761 INCHES MINIMUM AND 0.771 INCHES MAXIMUM IN, overall_height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, recess_diameter: 0.806 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-752-7641, 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
10-40703-9
NSN: 5310-00-752-7641
FSC: 5310 — Nuts and Washers
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2017 OVERALL
recess_angle120.0 DEGREES NOMINAL
recess_depth0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
hole_diameter0.761 INCHES MINIMUM AND 0.771 INCHES MAXIMUM IN
overall_height0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
recess_diameter0.806 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
outside_diameter1.046 INCHES MINIMUM AND 1.052 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentCADMIUM OVERALL
material_thickness0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
material_document_and_classificationAMS-4120 ASSN STD SINGLE MATERIAL RESPONSE OR AMS-4118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-752-7641
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-40703-9 · 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
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS-4120 ASSN STD SINGLE MATERIAL RESPONSE OR AMS-4118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.046 INCHES MINIMUM AND 1.052 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
RECESS DIAMETER: 0.806 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-4120 ASSN STD SINGLE MATERIAL RESPONSE OR AMS-4118 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.046 INCHES MINIMUM AND 1.052 INCHES MAXIMUM IN
RECESS DEPTH0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
MATERIAL THICKNESS0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
RECESS DIAMETER0.806 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2017 OVERALL
HOLE DIAMETER0.761 INCHES MINIMUM AND 0.771 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10-40703-9?
10-40703-9 is a WASHER,RECESSED.
What is the NSN for 10-40703-9?
10-40703-9 is cataloged in the U.S. Government catalog under NSN 5310-00-752-7641. 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.