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10496198 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10496198: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 270 OR COPPER ALLOY 268 OVERALL, thickness: 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN, hole_diameter: 0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN, overall_diameter: 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN, surface_treatment: TIN OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-177-1156, 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
10496198
NSN: 5310-00-177-1156
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialCOPPER ALLOY 270 OR COPPER ALLOY 268 OVERALL
thickness0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
hole_diameter0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
overall_diameter0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
surface_treatmentTIN OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-W-321 1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-177-1156
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10496198 · 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: MIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-321 1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: TIN OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY 270 OR COPPER ALLOY 268 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.495 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-321 1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTTIN OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONW/S: ENGINE, AIRCRAFT, F110-GE-100/129 (F-16C/D); AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130); GUIDED MISSILE LAUNCHING SYSTEM, MK 26 (GMLS); SUPPORT EQUIPMENT, B-1 AIRCRAFT; AIRCRAFT, C-2A (REPROCURED); TRAINER, B-1B AIRCRAFT; CLOSE IN WEAPON SYSTEM (CIWS-PHALANX); TACTICAL AIR OPNS MODULE (AN/TYQ-(23)); DEEP SUBMERGENCE SYSTEMS PROGRAMS (DSSP) A
MATERIALCOPPER ALLOY 270 OR COPPER ALLOY 268 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
817262Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5310PL0983477Reference document
Same NSN cross-reference
Reference document — Informative reference only
AN961-416TReference document
Same NSN cross-reference
Reference document — Secondary reference
NASM961-416TReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10496198?
10496198 is a WASHER,FLAT.
What parts can replace 10496198?
There are 4 known substitutes for 10496198: 817262, 5310PL0983477, AN961-416T and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10496198?
10496198 is cataloged in the U.S. Government catalog under NSN 5310-00-177-1156. 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.