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74A731426-2001A — WASHER,CONVEX

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

74A731426-2001A: WASHER,CONVEX.

The WASHER,CONVEX is a the manufacturer industrial component. Key specifications include hole_diameter: 0.625 INCHES NOMINAL IN, outside_diameter: 1.800 INCHES NOMINAL IN, special_features: 45.0 DEG. CHAMPER ARROUND CENTER HOLE CONCAVE SIDE, style_designator: CONVEX, material_thickness: 0.500 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: SPACER,STUD-RFTF ADAPTER.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-584-8488, 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
74A731426-2001A
NSN: 5310-01-584-8488
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
hole_diameter0.625 INCHES NOMINAL IN
outside_diameter1.800 INCHES NOMINAL IN
special_features45.0 DEG. CHAMPER ARROUND CENTER HOLE CONCAVE SIDE
style_designatorCONVEX
material_thickness0.500 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencySPACER,STUD-RFTF ADAPTER
NSN5310-01-584-8488
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74A731426-2001A · 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: CONVEX
•
OUTSIDE DIAMETER: 1.800 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.500 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCONVEX
OUTSIDE DIAMETER1.800 INCHES NOMINAL IN
MATERIAL THICKNESS0.500 INCHES NOMINAL IN
SPECIAL FEATURES45.0 DEG. CHAMPER ARROUND CENTER HOLE CONCAVE SIDE
PART NAME ASSIGNED BY CONTROLLING AGENCYSPACER,STUD-RFTF ADAPTER
HOLE DIAMETER0.625 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74A731426-2001A?
74A731426-2001A is a WASHER,CONVEX.
What is the NSN for 74A731426-2001A?
74A731426-2001A is cataloged in the U.S. Government catalog under NSN 5310-01-584-8488. 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.