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373-8050-000 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

373-8050-000: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, hole_diameter: 0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM IN, outside_diameter: 0.494 INCHES MINIMUM AND 0.494 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL TEETH, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.023 INCHES MINIMUM AND 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM0.028 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-061-4903, 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
373-8050-000
NSN: 5310-01-061-4903
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
hole_diameter0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM IN
outside_diameter0.494 INCHES MINIMUM AND 0.494 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL TEETH
surface_treatmentPASSIVATE OVERALL
material_thickness0.023 INCHES MINIMUM AND 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM0.028 INCHES MAXIMUM IN
material_document_and_classificationFF-W-100, COMP 410 FED SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-061-4903
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 373-8050-000 · 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-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
MATERIAL DOCUMENT AND CLASSIFICATION: FF-W-100, COMP 410 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.494 INCHES MINIMUM AND 0.494 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.023 INCHES MINIMUM AND 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM0.028 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 410 OVERALL
•
HOLE DIAMETER: 0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORFLAT EXTERNAL TEETH
MATERIAL DOCUMENT AND CLASSIFICATIONFF-W-100, COMP 410 FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.494 INCHES MINIMUM AND 0.494 INCHES MINIMUM AND 0.510 INCHES MAXIMUM0.510 INCHES MAXIMUM IN
MATERIAL THICKNESS0.023 INCHES MINIMUM AND 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM0.028 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 410 OVERALL
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM0.267 INCHES MAXIMUM 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 373-8050-000?
373-8050-000 is a WASHER,LOCK.
What is the NSN for 373-8050-000?
373-8050-000 is cataloged in the U.S. Government catalog under NSN 5310-01-061-4903. 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.