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596-7409708-20 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

596-7409708-20: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, hole_diameter: 0.650 INCHES NOMINAL IN, outside_diameter: 0.880 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.620 INCHES NOMINAL IN, end_item_identification: REGULATOR, FL SEAWOLF CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-508-1877, 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
596-7409708-20
NSN: 5310-01-508-1877
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
hole_diameter0.650 INCHES NOMINAL IN
outside_diameter0.880 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.620 INCHES NOMINAL IN
external_key_quantity9
internal_key_quantity1
end_item_identificationREGULATOR, FL SEAWOLF CLASS SSN
external_straight_key_width0.170 INCHES NOMINAL IN
internal_straight_key_width0.170 INCHES NOMINAL IN
overall_distance_including_keys1.500 INCHES NOMINAL IN
distance_from_centerline_to_top_of_internal_key0.260 INCHES NOMINAL IN
NSN5310-01-508-1877
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 596-7409708-20 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.170 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.260 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 0.880 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.620 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.170 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 9
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.170 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.260 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS1.500 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER0.880 INCHES NOMINAL IN
MATERIAL THICKNESS0.620 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.170 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY9
END ITEM IDENTIFICATIONREGULATOR, FL SEAWOLF CLASS SSN
MATERIALSTEEL COMP 304 OVERALL
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 596-7409708-20?
596-7409708-20 is a WASHER,KEY.
What is the NSN for 596-7409708-20?
596-7409708-20 is cataloged in the U.S. Government catalog under NSN 5310-01-508-1877. 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.