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2149850 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2149850: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, hole_diameter: 5.007 INCHES MINIMUM AND 5.015 INCHES MAXIMUM IN, outside_diameter: 5.625 INCHES NOMINAL IN, special_features: SECOND INERNAL PREBENT KEY; PHOSPHATE MANGANESE COAT BEFORE PRESERVATIVE, style_designator: KEY, surface_treatment: OIL OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-317-8167, 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
2149850
NSN: 5310-01-317-8167
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
hole_diameter5.007 INCHES MINIMUM AND 5.015 INCHES MAXIMUM IN
outside_diameter5.625 INCHES NOMINAL IN
special_featuresSECOND INERNAL PREBENT KEY; PHOSPHATE MANGANESE COAT BEFORE PRESERVATIVE
style_designatorKEY
surface_treatmentOIL OVERALL
material_thickness0.062 INCHES NOMINAL IN
internal_prebent_key_width0.369 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
internal_prebent_key_length0.156 INCHES NOMINAL IN
material_document_and_classificationQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification1603000,CAGEC 10001 MFR REF SINGLE TREATMENT RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key2.504 INCHES NOMINAL IN
NSN5310-01-317-8167
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2149850 · 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: 1603000,CAGEC 10001 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 2.504 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY WIDTH: 0.369 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 5.625 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY LENGTH: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION1603000,CAGEC 10001 MFR REF SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY2.504 INCHES NOMINAL IN
INTERNAL PREBENT KEY WIDTH0.369 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER5.625 INCHES NOMINAL IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
INTERNAL PREBENT KEY LENGTH0.156 INCHES NOMINAL IN
SPECIAL FEATURESSECOND INERNAL PREBENT KEY; PHOSPHATE MANGANESE COAT BEFORE PRESERVATIVE
SURFACE TREATMENTOIL OVERALL
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 2149850?
2149850 is a WASHER,KEY.
What is the NSN for 2149850?
2149850 is cataloged in the U.S. Government catalog under NSN 5310-01-317-8167. 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.