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Technical Data Sheet
PartsTable / COMPONENT / 797061
797061 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OVERALL, thickness: 0.09375 INCHES NOMINAL IN, hole_diameter: 1.391 INCHES NOMINAL IN, hardness_rating: 56.2 ROCKWELL B NOMINAL, overall_diameter: 1.875 INCHES NOMINAL IN, features_provided: CASEHARDENED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-281-8319, 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
797061
NSN: 5310-00-281-8319
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
thickness0.09375 INCHES NOMINAL IN
hole_diameter1.391 INCHES NOMINAL IN
hardness_rating56.2 ROCKWELL B NOMINAL
overall_diameter1.875 INCHES NOMINAL IN
features_providedCASEHARDENED
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-281-8319
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 797061 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.391 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
THICKNESS: 0.09375 INCHES NOMINAL IN
•
HARDNESS RATING: 56.2 ROCKWELL B NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER1.391 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OVERALL
FEATURES PROVIDEDCASEHARDENED
THICKNESS0.09375 INCHES NOMINAL IN
HARDNESS RATING56.2 ROCKWELL B NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER1.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
KS5842L02Interchangeable
interchangeable cross-reference
interchangeable
P250A8041Interchangeable
interchangeable cross-reference
interchangeable
17000Interchangeable
interchangeable cross-reference
interchangeable
27958Interchangeable
interchangeable cross-reference
interchangeable
27088HInterchangeable
Same NIIN cross-reference
interchangeable
T2996Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 797061?
797061 is a WASHER,FLAT.
What parts can replace 797061?
There are 8 known substitutes for 797061: KS5842L02, P250A8041, 17000 and 5 more. Substitute compatibility should be verified for your specific system.
Is 797061 still available?
797061 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026