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N405P19C16 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

N405P19C16: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM0.922 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM, outside_diameter: 1.470 INCHES MAXIMUM1.470 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-044-6587, 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
N405P19C16
NSN: 5310-01-044-6587
FSC: 5310 — Nuts and Washers
CAGE: 30221 — GENERAL ELECTRIC CO ARMAMENT AND ELECTRICAL SYSTEMS DEPT ELECTRICAL SYSTEMS PRODUCTS DEPT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM0.922 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM
outside_diameter1.470 INCHES MAXIMUM1.470 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.179 INCHES MINIMUM AND 0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM0.199 INCHES MAXIMUM IN
NSN5310-01-044-6587
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: N405P19C16 · 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
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 1.470 INCHES MAXIMUM1.470 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.179 INCHES MINIMUM AND 0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM0.199 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM0.922 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM53.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER1.470 INCHES MAXIMUM1.470 INCHES MAXIMUM IN
MATERIAL THICKNESS0.179 INCHES MINIMUM AND 0.179 INCHES MINIMUM AND 0.199 INCHES MAXIMUM0.199 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.890 INCHES MINIMUM AND 0.890 INCHES MINIMUM AND 0.922 INCHES MAXIMUM0.922 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: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is N405P19C16?
N405P19C16 is a WASHER,LOCK.
What is the NSN for N405P19C16?
N405P19C16 is cataloged in the U.S. Government catalog under NSN 5310-01-044-6587. 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.