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642-2673-001 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

642-2673-001: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include recess_depth: 0.038 INCHES NOMINAL IN, hole_diameter: 0.142 INCHES NOMINAL IN, overall_height: 0.052 INCHES NOMINAL IN, outside_diameter: 0.500 INCHES NOMINAL IN, style_designator: RECESSED, material_thickness: 0.047 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-248-9747, 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
642-2673-001
NSN: 5310-01-248-9747
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
recess_depth0.038 INCHES NOMINAL IN
hole_diameter0.142 INCHES NOMINAL IN
overall_height0.052 INCHES NOMINAL IN
outside_diameter0.500 INCHES NOMINAL IN
style_designatorRECESSED
material_thickness0.047 INCHES NOMINAL IN
NSN5310-01-248-9747
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 642-2673-001 · 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
•
STYLE DESIGNATOR: RECESSED
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
RECESS DEPTH: 0.038 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.047 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.142 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.052 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
RECESS DEPTH0.038 INCHES NOMINAL IN
MATERIAL THICKNESS0.047 INCHES NOMINAL IN
HOLE DIAMETER0.142 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 642-2673-001?
642-2673-001 is a WASHER,RECESSED.
What is the NSN for 642-2673-001?
642-2673-001 is cataloged in the U.S. Government catalog under NSN 5310-01-248-9747. 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.