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1829Q381 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1829Q381: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, recess_depth: 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN, hole_diameter: 1.385 INCHES MINIMUM AND 1.395 INCHES MAXIMUM IN, hardness_rating: 57.0 ROCKWELL C MINIMUM, recess_diameter: 1.416 INCHES NOMINAL IN, outside_diameter: 2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-700-0436, 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
1829Q381
NSN: 5310-00-700-0436
FSC: 5310 — Nuts and Washers
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
recess_depth0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
hole_diameter1.385 INCHES MINIMUM AND 1.395 INCHES MAXIMUM IN
hardness_rating57.0 ROCKWELL C MINIMUM
recess_diameter1.416 INCHES NOMINAL IN
outside_diameter2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM IN
style_designatorRECESSED BOTH SIDES
top_recess_angle90.0 DEGREES NOMINAL
features_providedCASEHARDENED
surface_treatmentCOPPER AND TIN OVERALL
material_thickness0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
bottom_recess_angle90.0 DEGREES NOMINAL
NSN5310-00-700-0436
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1829Q381 · 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
•
TOP RECESS DIAMETER: 1.416 INCHES NOMINAL IN
•
BOTTOM RECESS DIAMETER: 1.416 INCHES NOMINAL IN
•
HARDNESS RATING: 57.0 ROCKWELL C MINIMUM
•
TOP RECESS ANGLE: 90.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TOP RECESS DIAMETER1.416 INCHES NOMINAL IN
BOTTOM RECESS DIAMETER1.416 INCHES NOMINAL IN
HARDNESS RATING57.0 ROCKWELL C MINIMUM
TOP RECESS ANGLE90.0 DEGREES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM IN
RECESS DEPTH0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
MATERIAL THICKNESS0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
2124874Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
667180Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1829Q381?
1829Q381 is a WASHER,RECESSED.
What parts can replace 1829Q381?
There are 2 known substitutes for 1829Q381: 2124874, 667180. Substitute compatibility should be verified for your specific system.
What is the NSN for 1829Q381?
1829Q381 is cataloged in the U.S. Government catalog under NSN 5310-00-700-0436. 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.