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499348 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

499348: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, recess_depth: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN, hole_diameter: 0.439 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN, overall_height: 0.100 INCHES NOMINAL IN, outside_diameter: 1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-941-9654, 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
499348
NSN: 5310-00-941-9654
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
recess_depth0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
hole_diameter0.439 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
overall_height0.100 INCHES NOMINAL IN
outside_diameter1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentPASSIVATE OVERALL
material_thickness0.080 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
material_document_and_classificationAMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-941-9654
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 499348 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.080 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.100 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
RECESS DEPTH0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
MATERIAL THICKNESS0.080 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 303 OVERALL
HOLE DIAMETER0.439 INCHES MINIMUM AND 0.442 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 499348?
499348 is a WASHER,RECESSED.
What is the NSN for 499348?
499348 is cataloged in the U.S. Government catalog under NSN 5310-00-941-9654. 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.