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F310986 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

F310986: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, recess_angle: 100.0 DEGREES NOMINAL, hole_diameter: 0.995 INCHES NOMINAL IN, recess_diameter: 1.200 INCHES NOMINAL IN, outside_diameter: 1.508 INCHES NOMINAL IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-009-8541, 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
F310986
NSN: 5310-00-009-8541
FSC: 5310 — Nuts and Washers
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
recess_angle100.0 DEGREES NOMINAL
hole_diameter0.995 INCHES NOMINAL IN
recess_diameter1.200 INCHES NOMINAL IN
outside_diameter1.508 INCHES NOMINAL IN
style_designatorRECESSED
surface_treatmentPAINT OVERALL
material_thickness0.281 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-009-8541
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F310986 · 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
•
STYLE DESIGNATOR: RECESSED
•
OUTSIDE DIAMETER: 1.508 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.281 INCHES NOMINAL IN
•
RECESS DIAMETER: 1.200 INCHES NOMINAL IN
•
COLOR: YELLOW OVERALL
•
SURFACE TREATMENT: PAINT OVERALL
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER1.508 INCHES NOMINAL IN
MATERIAL THICKNESS0.281 INCHES NOMINAL IN
RECESS DIAMETER1.200 INCHES NOMINAL IN
COLORYELLOW OVERALL
SURFACE TREATMENTPAINT OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALALUMINUM ALLOY OVERALL
HOLE DIAMETER0.995 INCHES NOMINAL IN
RECESS ANGLE100.0 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 F310986?
F310986 is a WASHER,RECESSED.
What is the NSN for F310986?
F310986 is cataloged in the U.S. Government catalog under NSN 5310-00-009-8541. 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.