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702E0021 — WASHER,KEYWAY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

702E0021: WASHER,KEYWAY.

The WASHER,KEYWAY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 2.250 INCHES NOMINAL IN, surface_finish: 32.0 MICROINCHES TOP, outside_diameter: 2.741 INCHES MINIMUM AND 2.742 INCHES MAXIMUM IN, material_thickness: 0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, internal_keyway_width: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-923-4863, 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
702E0021
NSN: 5310-00-923-4863
FSC: 5310 — Nuts and Washers
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter2.250 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES TOP
outside_diameter2.741 INCHES MINIMUM AND 2.742 INCHES MAXIMUM IN
material_thickness0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
internal_keyway_width0.250 INCHES NOMINAL IN
internal_keyway_quantity1
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
distance_from_centerline_to_bottom_of_internal_keyway1.688 INCHES NOMINAL IN
NSN5310-00-923-4863
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 702E0021 · 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
•
DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY: 1.688 INCHES NOMINAL IN
•
INTERNAL KEYWAY WIDTH: 0.250 INCHES NOMINAL IN
•
SURFACE FINISH: 32.0 MICROINCHES TOP
•
OUTSIDE DIAMETER: 2.741 INCHES MINIMUM AND 2.742 INCHES MAXIMUM IN
•
INTERNAL KEYWAY QUANTITY: 1
•
MATERIAL THICKNESS: 0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY1.688 INCHES NOMINAL IN
INTERNAL KEYWAY WIDTH0.250 INCHES NOMINAL IN
SURFACE FINISH32.0 MICROINCHES TOP
OUTSIDE DIAMETER2.741 INCHES MINIMUM AND 2.742 INCHES MAXIMUM IN
INTERNAL KEYWAY QUANTITY1
MATERIAL THICKNESS0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL OVERALL
HOLE DIAMETER2.250 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 702E0021?
702E0021 is a WASHER,KEYWAY.
What is the NSN for 702E0021?
702E0021 is cataloged in the U.S. Government catalog under NSN 5310-00-923-4863. 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.