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10109868 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10109868: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, hole_diameter: 1.390 INCHES NOMINAL IN, outside_diameter: 1.875 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.090 INCHES NOMINAL IN, wire_hole_diameter: 0.070 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-160-2046, 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
10109868
NSN: 5310-01-160-2046
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
hole_diameter1.390 INCHES NOMINAL IN
outside_diameter1.875 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
material_thickness0.090 INCHES NOMINAL IN
wire_hole_diameter0.070 INCHES NOMINAL IN
external_key_quantity1
internal_key_quantity2
external_prebent_key_width0.220 INCHES NOMINAL IN
external_prebent_key_length0.500 INCHES NOMINAL IN
internal_straight_key_width0.231 INCHES MINIMUM AND 0.241 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-25043,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-160-2046
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10109868 · 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: 0.231 INCHES MINIMUM AND 0.241 INCHES MAXIMUM IN
•
WIRE HOLE DIAMETER: 0.070 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: PS13001,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
EXTERNAL PREBENT KEY LENGTH: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-25043,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.875 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.090 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 1
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.231 INCHES MINIMUM AND 0.241 INCHES MAXIMUM IN
WIRE HOLE DIAMETER0.070 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13001,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
EXTERNAL PREBENT KEY LENGTH0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-25043,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.875 INCHES NOMINAL IN
MATERIAL THICKNESS0.090 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY1
SURFACE TREATMENTPASSIVATE OVERALL
EXTERNAL PREBENT KEY WIDTH0.220 INCHES NOMINAL 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 1
74A410775-2005Reference 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
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FREQUENTLY ASKED QUESTIONS
What is 10109868?
10109868 is a WASHER,KEY.
What parts can replace 10109868?
There is 1 known substitute for 10109868: 74A410775-2005. Substitute compatibility should be verified for your specific system.
What is the NSN for 10109868?
10109868 is cataloged in the U.S. Government catalog under NSN 5310-01-160-2046. 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.