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7027644 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7027644: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OR STEEL COMP 1020 OVERALL, recess_angle: 110.0 DEGREES NOMINAL, hole_diameter: 1.089 INCHES NOMINAL IN, recess_diameter: 1.875 INCHES NOMINAL IN, shoulder_height: 0.250 INCHES NOMINAL IN, outside_diameter: 3.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-679-4993, 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
7027644
NSN: 5310-00-679-4993
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1020 OVERALL
recess_angle110.0 DEGREES NOMINAL
hole_diameter1.089 INCHES NOMINAL IN
recess_diameter1.875 INCHES NOMINAL IN
shoulder_height0.250 INCHES NOMINAL IN
outside_diameter3.000 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter1.089 INCHES NOMINAL IN
material_thickness0.250 INCHES NOMINAL IN
material_document_and_classificationASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-679-4993
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7027644 · 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
•
SHOULDER HEIGHT: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.250 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 1.089 INCHES NOMINAL IN
•
RECESS DIAMETER: 1.875 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1020 OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.250 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.250 INCHES NOMINAL IN
SHOULDER DIAMETER1.089 INCHES NOMINAL IN
RECESS DIAMETER1.875 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OR STEEL COMP 1020 OVERALL
HOLE DIAMETER1.089 INCHES NOMINAL IN
RECESS ANGLE110.0 DEGREES NOMINAL
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
5310006794993Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7027644?
7027644 is a WASHER,SHOULDERED AND RECESSED.
What parts can replace 7027644?
There is 1 known substitute for 7027644: 5310006794993. Substitute compatibility should be verified for your specific system.
What is the NSN for 7027644?
7027644 is cataloged in the U.S. Government catalog under NSN 5310-00-679-4993. 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.