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131.020-SS-11 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

131.020-SS-11: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.020 INCHES NOMINAL IN, hole_diameter: 0.173 INCHES NOMINAL IN, overall_diameter: 0.290 INCHES NOMINAL IN, special_features: BLACK OXIDE SURFACE TREATMENT, surface_treatment: OXIDE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-510-0763, 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
131.020-SS-11
NSN: 5310-01-510-0763
FSC: 5310 — Nuts and Washers
CAGE: 51506 — ACCURATE SCREW MACHINE CORP DIV ACCURATE SCREW MACHINE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.020 INCHES NOMINAL IN
hole_diameter0.173 INCHES NOMINAL IN
overall_diameter0.290 INCHES NOMINAL IN
special_featuresBLACK OXIDE SURFACE TREATMENT
surface_treatmentOXIDE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification1FLOLS/CATAPULT ARRESTING GEAR
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationMIL=C=13924-C,AMEND 1, CLASS 4 300 SERIES CORROSSION MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-510-0763
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 131.020-SS-11 · 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: MIL=C=13924-C,AMEND 1, CLASS 4 300 SERIES CORROSSION MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.290 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: OXIDE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL=C=13924-C,AMEND 1, CLASS 4 300 SERIES CORROSSION MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.290 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESBLACK OXIDE SURFACE TREATMENT
SURFACE TREATMENTOXIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATION1FLOLS/CATAPULT ARRESTING GEAR
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.173 INCHES NOMINAL 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 131.020-SS-11?
131.020-SS-11 is a WASHER,FLAT.
What is the NSN for 131.020-SS-11?
131.020-SS-11 is cataloged in the U.S. Government catalog under NSN 5310-01-510-0763. This indicates validated use in U.S. government and defense supply chains.
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