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530733 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

530733: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, hole_diameter: 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, outside_diameter: 0.430 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN, special_features: DOUBLE KEY BENT 30 DEG PORM 10 DEG FROM SINGLE KEY, split_key_length: 0.140 INCHES NOMINAL IN, style_designator: KEY. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-997-6835, 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
530733
NSN: 5310-00-997-6835
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
hole_diameter0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
outside_diameter0.430 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
special_featuresDOUBLE KEY BENT 30 DEG PORM 10 DEG FROM SINGLE KEY
split_key_length0.140 INCHES NOMINAL IN
style_designatorKEY
surface_treatmentPASSIVATE OVERALL
material_thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
external_key_quantity3
external_prebent_key_width0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
external_tapered_key_width0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
angle_between_external_keys60.0 DEGREES NOMINAL
NSN5310-00-997-6835
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 530733 · 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 INSIDE OF PREBENT KEY: 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
SPLIT KEY LENGTH: 0.140 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.085 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.430 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
•
EXTERNAL TAPERED KEY WIDTH: 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
SPLIT KEY LENGTH0.140 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.085 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.430 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
EXTERNAL TAPERED KEY WIDTH0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY3
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 530733?
530733 is a WASHER,KEY.
What is the NSN for 530733?
530733 is cataloged in the U.S. Government catalog under NSN 5310-00-997-6835. 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.