PartsTable
Technical Data Sheet
Download PDF

10109379 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10109379: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, hole_diameter: 0.577 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN, outside_diameter: 0.910 INCHES NOMINAL IN, special_features: ONE EXTERNAL KEY STRAIGHT SHAPE; INTERNAL KEYS BOTTOM ROUND SURFACE, material_thickness: 0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, wire_hole_diameter: 0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-121-0385, 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
10109379
NSN: 5310-01-121-0385
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
hole_diameter0.577 INCHES MINIMUM AND 0.587 INCHES MAXIMUM IN
outside_diameter0.910 INCHES NOMINAL IN
special_featuresONE EXTERNAL KEY STRAIGHT SHAPE; INTERNAL KEYS BOTTOM ROUND SURFACE
material_thickness0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
wire_hole_diameter0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
internal_key_quantity2
minimum_tensile_strength180000 POUNDS PER SQUARE INCH LBS
external_prebent_key_angle30.0 DEGREES NOMINAL
internal_straight_key_width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-6758,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key0.530 INCHES NOMINAL IN
NSN5310-01-121-0385
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10109379 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
WIRE HOLE DIAMETER: 0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.530 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.910 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY ANGLE: 30.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
WIRE HOLE DIAMETER0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.530 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.910 INCHES NOMINAL IN
MATERIAL THICKNESS0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY ANGLE30.0 DEGREES NOMINAL
SPECIAL FEATURESONE EXTERNAL KEY STRAIGHT SHAPE; INTERNAL KEYS BOTTOM ROUND SURFACE
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH LBS
MATERIALSTEEL COMP 4130 OVERALL
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 1
74A410582-2001Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 10109379?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 10109379?
10109379 is a WASHER,KEY.
What parts can replace 10109379?
There is 1 known substitute for 10109379: 74A410582-2001. Substitute compatibility should be verified for your specific system.
What is the NSN for 10109379?
10109379 is cataloged in the U.S. Government catalog under NSN 5310-01-121-0385. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 10109379

✓ 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.