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10437719 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10437719: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include hole_diameter: 0.378 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES TOP, hardness_rating: 29.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM, recess_diameter: 0.435 INCHES NOMINAL IN, outside_diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN, style_designator: RECESSED BOTH SIDES. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-059-5228, 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
10437719
NSN: 5310-00-059-5228
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
hole_diameter0.378 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES TOP
hardness_rating29.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
recess_diameter0.435 INCHES NOMINAL IN
outside_diameter0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
style_designatorRECESSED BOTH SIDES
top_recess_angle90.000 DEGREES NOMINAL
material_thickness0.107 INCHES MINIMUM AND 0.117 INCHES MAXIMUM IN
bottom_recess_angle90.000 DEGREES NOMINAL
top_recess_diameter0.435 INCHES NOMINAL IN
bottom_recess_diameter0.435 INCHES NOMINAL IN
material_document_and_classificationAMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5518 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN5310-00-059-5228
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10437719 · 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
•
SURFACE FINISH: 63.0 MICROINCHES BOTTOM
•
TOP RECESS DIAMETER: 0.435 INCHES NOMINAL IN
•
BOTTOM RECESS DIAMETER: 0.435 INCHES NOMINAL IN
•
HARDNESS RATING: 29.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
•
TOP RECESS ANGLE: 90.000 DEGREES NOMINAL
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5518 ASSN STD 2ND MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
TOP RECESS DIAMETER0.435 INCHES NOMINAL IN
BOTTOM RECESS DIAMETER0.435 INCHES NOMINAL IN
HARDNESS RATING29.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
TOP RECESS ANGLE90.000 DEGREES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5518 ASSN STD 2ND MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
MATERIAL THICKNESS0.107 INCHES MINIMUM AND 0.117 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
5310PL0712488Reference document
Same NSN cross-reference
Reference document — Informative reference only
MS9768-12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10437719?
10437719 is a WASHER,RECESSED.
What parts can replace 10437719?
There are 2 known substitutes for 10437719: 5310PL0712488, MS9768-12. Substitute compatibility should be verified for your specific system.
What is the NSN for 10437719?
10437719 is cataloged in the U.S. Government catalog under NSN 5310-00-059-5228. 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.