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2505844 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2505844: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 OVERALL, hole_diameter: 1.630 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN, shoulder_height: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, outside_diameter: 2.375 INCHES NOMINAL IN, special_features: TWO 0.185 IN. DIA HOLES,EQUALLY SPACED ON 2.062 IN.

DIA BASIC CIRCLE IN, style_designator: SHOULDERED. This part is cataloged in the U.S. Government catalog under NSN 5310-01-031-7553, 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
2505844
NSN: 5310-01-031-7553
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 OVERALL
hole_diameter1.630 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
shoulder_height0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
outside_diameter2.375 INCHES NOMINAL IN
special_featuresTWO 0.185 IN. DIA HOLES,EQUALLY SPACED ON 2.062 IN. DIA BASIC CIRCLE IN
style_designatorSHOULDERED
shoulder_diameter1.776 INCHES MINIMUM AND 1.786 INCHES MAXIMUM IN
material_thickness0.135 INCHES NOMINAL IN
NSN5310-01-031-7553
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2505844 · 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: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 2.375 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.135 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 1.776 INCHES MINIMUM AND 1.786 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 2017 OVERALL
•
HOLE DIAMETER: 1.630 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER2.375 INCHES NOMINAL IN
MATERIAL THICKNESS0.135 INCHES NOMINAL IN
SHOULDER DIAMETER1.776 INCHES MINIMUM AND 1.786 INCHES MAXIMUM IN
SPECIAL FEATURESTWO 0.185 IN. DIA HOLES,EQUALLY SPACED ON 2.062 IN. DIA BASIC CIRCLE IN
MATERIALALUMINUM ALLOY 2017 OVERALL
HOLE DIAMETER1.630 INCHES MINIMUM AND 1.640 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2505844?
2505844 is a WASHER,SHOULDERED.
What is the NSN for 2505844?
2505844 is cataloged in the U.S. Government catalog under NSN 5310-01-031-7553. 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.