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107D3078-1 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

107D3078-1: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, recess_depth: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN, hole_diameter: 0.312 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, outside_diameter: 0.690 INCHES NOMINAL IN, special_features: BOTH SIDES OUTSIDE DIA CHAMFERED 7.0 DEGREES,0.115 IN. LG IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-00-015-3936, 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
107D3078-1
NSN: 5310-00-015-3936
FSC: 5310 — Nuts and Washers
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
recess_depth0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
hole_diameter0.312 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
outside_diameter0.690 INCHES NOMINAL IN
special_featuresBOTH SIDES OUTSIDE DIA CHAMFERED 7.0 DEGREES,0.115 IN. LG IN
style_designatorRECESSED BOTH SIDES
top_recess_angle90.0 DEGREES NOMINAL
material_thickness0.188 INCHES NOMINAL IN
bottom_recess_angle90.0 DEGREES NOMINAL
top_recess_diameter0.373 INCHES NOMINAL IN
bottom_recess_diameter0.373 INCHES NOMINAL IN
NSN5310-00-015-3936
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 107D3078-1 · 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 DIAMETER: 0.373 INCHES NOMINAL IN
•
BOTTOM RECESS DIAMETER: 0.373 INCHES NOMINAL IN
•
HEAT TREATMENT: AS FABRICATED
•
TOP RECESS ANGLE: 90.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.690 INCHES NOMINAL IN
•
RECESS DEPTH: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TOP RECESS DIAMETER0.373 INCHES NOMINAL IN
BOTTOM RECESS DIAMETER0.373 INCHES NOMINAL IN
HEAT TREATMENTAS FABRICATED
TOP RECESS ANGLE90.0 DEGREES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.690 INCHES NOMINAL IN
RECESS DEPTH0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
MATERIAL THICKNESS0.188 INCHES NOMINAL IN
BOTTOM RECESS ANGLE90.0 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

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 107D3078-1?
107D3078-1 is a WASHER,RECESSED.
What is the NSN for 107D3078-1?
107D3078-1 is cataloged in the U.S. Government catalog under NSN 5310-00-015-3936. 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.