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3493-AS-501-2 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3493-AS-501-2: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: GLASS OVERALL, hole_diameter: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN, overall_height: 0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN, shoulder_height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, outside_diameter: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-529-6331, 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
3493-AS-501-2
NSN: 5310-01-529-6331
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialGLASS OVERALL
hole_diameter0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
overall_height0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
shoulder_height0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
outside_diameter0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
style_designatorSHOULDERED
shoulder_diameter0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
end_item_identificationAN/AQS-20A MINE DETECTING SYSTEM (PAL) AND AN/AQS-20A MID SECTION A
part_name_assigned_by_controlling_agencyWASHER, SHOULDER
NSN5310-01-529-6331
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3493-AS-501-2 · 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
•
SHOULDER HEIGHT: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
•
MATERIAL: GLASS OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
SHOULDER HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
SHOULDER DIAMETER0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, SHOULDER
END ITEM IDENTIFICATIONAN/AQS-20A MINE DETECTING SYSTEM (PAL) AND AN/AQS-20A MID SECTION A
MATERIALGLASS OVERALL
HOLE DIAMETER0.198 INCHES MINIMUM AND 0.208 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3493-AS-501-2?
3493-AS-501-2 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 3493-AS-501-2?
3493-AS-501-2 is cataloged in the U.S. Government catalog under NSN 5310-01-529-6331. 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.