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2078884 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2078884: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, hole_diameter: 0.143 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN, shoulder_height: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN, outside_diameter: 0.625 INCHES NOMINAL IN, style_designator: SHOULDERED, shoulder_diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-901-0276, 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
2078884
NSN: 5310-00-901-0276
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
hole_diameter0.143 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
shoulder_height0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
outside_diameter0.625 INCHES NOMINAL IN
style_designatorSHOULDERED
shoulder_diameter0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
surface_treatmentCHROMATE OVERALL
material_thickness0.064 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationAMS 2473 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-901-0276
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2078884 · 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: AMS 2473 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER HEIGHT: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.064 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2473 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SHOULDER HEIGHT0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
MATERIAL THICKNESS0.064 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
SHOULDER DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
SURFACE TREATMENTCHROMATE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
HOLE DIAMETER0.143 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2078884?
2078884 is a WASHER,SHOULDERED.
What is the NSN for 2078884?
2078884 is cataloged in the U.S. Government catalog under NSN 5310-00-901-0276. 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.