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KTP224A — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

KTP224A: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.125 INCHES NOMINAL IN, hole_diameter: 0.252 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN, overall_diameter: 0.750 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, special_test_features: SPECIAL QUALITY CONTROL TESTING. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-332-3260, 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
KTP224A
NSN: 5310-01-332-3260
FSC: 5310 — Nuts and Washers
CAGE: 02750 — EATON AEROSPACE LLC DBA EATON INOAC DIV FLUID & ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.125 INCHES NOMINAL IN
hole_diameter0.252 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
overall_diameter0.750 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
special_test_featuresSPECIAL QUALITY CONTROL TESTING
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
departure_from_cited_documentAS MODIFIED BY MATERIAL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-332-3260
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: KTP224A · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.750 INCHES NOMINAL IN
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY MATERIAL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
TEST DATA DOCUMENT: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.750 INCHES NOMINAL IN
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MATERIAL
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
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 2
1277-25-SS-20Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LL-HQ7-0104Reference document
Same NSN cross-reference
Reference document — Secondary 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 KTP224A?
KTP224A is a WASHER,FLAT.
What parts can replace KTP224A?
There are 2 known substitutes for KTP224A: 1277-25-SS-20, LL-HQ7-0104. Substitute compatibility should be verified for your specific system.
What is the NSN for KTP224A?
KTP224A is cataloged in the U.S. Government catalog under NSN 5310-01-332-3260. 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.