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5144178 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5144178: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, recess_angle: 270.0 DEGREES NOMINAL, hole_diameter: 0.379 INCHES MINIMUM AND 0.389 INCHES MAXIMUM IN, shoulder_height: 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN, outside_diameter: 0.680 INCHES NOMINAL IN, style_designator: SHOULDERED AND RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-409-9031, 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
5144178
NSN: 5310-00-409-9031
FSC: 5310 — Nuts and Washers
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
recess_angle270.0 DEGREES NOMINAL
hole_diameter0.379 INCHES MINIMUM AND 0.389 INCHES MAXIMUM IN
shoulder_height0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
outside_diameter0.680 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter0.530 INCHES NOMINAL IN
material_thickness0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
NSN5310-00-409-9031
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5144178 · 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: 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
OUTSIDE DIAMETER: 0.680 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.530 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.379 INCHES MINIMUM AND 0.389 INCHES MAXIMUM IN
•
RECESS ANGLE: 270.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED AND RECESSED
OUTSIDE DIAMETER0.680 INCHES NOMINAL IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
SHOULDER DIAMETER0.530 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.379 INCHES MINIMUM AND 0.389 INCHES MAXIMUM IN
RECESS ANGLE270.0 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 2
5310004099031Reference document
Same NSN cross-reference
Reference document — Secondary reference
PC5144178Reference 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 5144178?
5144178 is a WASHER,SHOULDERED AND RECESSED.
What parts can replace 5144178?
There are 2 known substitutes for 5144178: 5310004099031, PC5144178. Substitute compatibility should be verified for your specific system.
What is the NSN for 5144178?
5144178 is cataloged in the U.S. Government catalog under NSN 5310-00-409-9031. 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.