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10910174-9 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10910174-9: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 1050 OVERALL, thickness: 0.187 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN, hole_diameter: 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN, heat_treatment: QUENCHED AND TEMPERED, hardness_rating: 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM, overall_diameter: 1.771 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-809-9514, 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
10910174-9
NSN: 5310-00-809-9514
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 1050 OVERALL
thickness0.187 INCHES MINIMUM AND 0.201 INCHES MAXIMUM IN
hole_diameter0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
heat_treatmentQUENCHED AND TEMPERED
hardness_rating33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
overall_diameter1.771 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-809-9514
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10910174-9 · 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-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 1.771 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN
•
HEAT TREATMENT: QUENCHED AND TEMPERED
•
HARDNESS RATING: 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-626 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-627 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-627 FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-624 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-626 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-627 FED SPEC 3RD MATERIAL RESPONSE AND QQ-S-624 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-626 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-627 FED SPEC 4TH MATERIAL RESPONSE AND SAE ASSN STD 5TH MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: CADMIUM OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER1.771 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN
HEAT TREATMENTQUENCHED AND TEMPERED
HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-626 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-627 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-627 FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-624 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-626 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-627 FED SPEC 3RD MATERIAL RESPONSE AND QQ-S-624 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-626 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-627 FED SPEC 4TH MATERIAL RESPONSE AND SAE ASSN STD 5TH MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTCADMIUM OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 1050 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 1
10392348Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10910174-9?
10910174-9 is a WASHER,FLAT.
What parts can replace 10910174-9?
There is 1 known substitute for 10910174-9: 10392348. Substitute compatibility should be verified for your specific system.
What is the NSN for 10910174-9?
10910174-9 is cataloged in the U.S. Government catalog under NSN 5310-00-809-9514. 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.