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529304 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

529304: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.320 INCHES NOMINAL IN, special_features: MATT IS STEEL AMS 5516, style_designator: KEY, external_straight_key_width: 0.130 INCHES NOMINAL IN, criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-293-1406, 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
529304
NSN: 5310-01-293-1406
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.320 INCHES NOMINAL IN
special_featuresMATT IS STEEL AMS 5516
style_designatorKEY
external_straight_key_width0.130 INCHES NOMINAL IN
criticality_code_justificationFEAT
NSN5310-01-293-1406
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 529304 · 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: KEY
•
EXTERNAL STRAIGHT KEY WIDTH: 0.130 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.320 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORKEY
EXTERNAL STRAIGHT KEY WIDTH0.130 INCHES NOMINAL IN
SPECIAL FEATURESMATT IS STEEL AMS 5516
MATERIALSTEEL OVERALL
HOLE DIAMETER0.320 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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 529304?
529304 is a WASHER,KEY.
What is the NSN for 529304?
529304 is cataloged in the U.S. Government catalog under NSN 5310-01-293-1406. 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.