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13231057-5 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

13231057-5: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: PLASTIC NYLON OVERALL, hole_diameter: 0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN, outside_diameter: 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN, style_designator: RECESSED BOTH SIDES, top_recess_angle: 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM, material_thickness: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-337-2358, 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
13231057-5
NSN: 5310-01-337-2358
FSC: 5310 — Nuts and Washers
CAGE: 04939 — LOCKHEED MARTIN CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC NYLON OVERALL
hole_diameter0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
outside_diameter0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
style_designatorRECESSED BOTH SIDES
top_recess_angle85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
material_thickness0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
bottom_recess_angle85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
end_item_identification4931-01-318-5730
NSN5310-01-337-2358
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 13231057-5 · 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
•
TOP RECESS ANGLE: 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
OUTSIDE DIAMETER: 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
BOTTOM RECESS ANGLE: 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
•
MATERIAL: PLASTIC NYLON OVERALL
•
HOLE DIAMETER: 0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TOP RECESS ANGLE85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
STYLE DESIGNATORRECESSED BOTH SIDES
OUTSIDE DIAMETER0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
MATERIAL THICKNESS0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
BOTTOM RECESS ANGLE85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
END ITEM IDENTIFICATION4931-01-318-5730
MATERIALPLASTIC NYLON OVERALL
HOLE DIAMETER0.381 INCHES MINIMUM AND 0.401 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 13231057-5?
13231057-5 is a WASHER,RECESSED.
What is the NSN for 13231057-5?
13231057-5 is cataloged in the U.S. Government catalog under NSN 5310-01-337-2358. This indicates validated use in U.S. government and defense supply chains.
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