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T5998553PC2 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

T5998553PC2: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.316 INCHES NOMINAL0.316 INCHES NOMINAL IN, outside_diameter: 0.469 INCHES NOMINAL0.469 INCHES NOMINAL IN, style_designator: KEYKEY, surface_treatment: ZINC AND ZINC AND CHROMATE OVERALLCHROMATE OVERALL, material_thickness: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-262-5845, 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
T5998553PC2
NSN: 5310-00-262-5845
FSC: 5310 — Nuts and Washers
CAGE: 24446 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.316 INCHES NOMINAL0.316 INCHES NOMINAL IN
outside_diameter0.469 INCHES NOMINAL0.469 INCHES NOMINAL IN
style_designatorKEYKEY
surface_treatmentZINC AND ZINC AND CHROMATE OVERALLCHROMATE OVERALL
material_thickness0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
external_key_quantity55
external_straight_key_width0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
overall_distance_including_keys0.719 INCHES NOMINAL0.719 INCHES NOMINAL IN
NSN5310-00-262-5845
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: T5998553PC2 · 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
•
OVERALL DISTANCE INCLUDING KEYS: 0.719 INCHES NOMINAL0.719 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEYKEY
•
OUTSIDE DIAMETER: 0.469 INCHES NOMINAL0.469 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 55
•
SURFACE TREATMENT: ZINC AND ZINC AND CHROMATE OVERALLCHROMATE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS0.719 INCHES NOMINAL0.719 INCHES NOMINAL IN
STYLE DESIGNATORKEYKEY
OUTSIDE DIAMETER0.469 INCHES NOMINAL0.469 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY55
SURFACE TREATMENTZINC AND ZINC AND CHROMATE OVERALLCHROMATE OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.316 INCHES NOMINAL0.316 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 1
273765PC2Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 T5998553PC2?
T5998553PC2 is a WASHER,KEY.
What parts can replace T5998553PC2?
There is 1 known substitute for T5998553PC2: 273765PC2. Substitute compatibility should be verified for your specific system.
What is the NSN for T5998553PC2?
T5998553PC2 is cataloged in the U.S. Government catalog under NSN 5310-00-262-5845. 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.