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10231183 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10231183: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, recess_angle: 45.0 DEGREES NOMINAL, hole_diameter: 1.265 INCHES MINIMUM AND 1.285 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, hardness_rating: 34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM, recess_diameter: 1.425 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-104-6640, 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
10231183
NSN: 5310-00-104-6640
FSC: 5310 — Nuts and Washers
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
recess_angle45.0 DEGREES NOMINAL
hole_diameter1.265 INCHES MINIMUM AND 1.285 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
hardness_rating34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
recess_diameter1.425 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
outside_diameter2.188 INCHES NOMINAL IN
style_designatorRECESSED
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
material_document_and_classificationAMS6415,E4340,CONDITION COLD DRAWN MFR REF SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-104-6640
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10231183 · 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 TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HEAT TREATMENT: AS FABRICATED
•
HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6415,E4340,CONDITION COLD DRAWN MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.188 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
RECESS DIAMETER: 1.425 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAT TREATMENTAS FABRICATED
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6415,E4340,CONDITION COLD DRAWN MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.188 INCHES NOMINAL IN
MATERIAL THICKNESS0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
RECESS DIAMETER1.425 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL 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
5310001046640Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10231183?
10231183 is a WASHER,RECESSED.
What parts can replace 10231183?
There is 1 known substitute for 10231183: 5310001046640. Substitute compatibility should be verified for your specific system.
What is the NSN for 10231183?
10231183 is cataloged in the U.S. Government catalog under NSN 5310-00-104-6640. This indicates validated use in U.S. government and defense supply chains.
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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.