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16-1877 — GASKET

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

16-1877: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 3.969 INCHES MINIMUM AND 3.979 INCHES MAXIMUM IN, outside_diameter: 4.125 INCHES NOMINAL IN, style_designator: KEY, surface_treatment: CADMIUM OR ZINC OVERALL, material_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-637-8563, 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
16-1877
NSN: 5310-00-637-8563
NIINs: 006378563, 013045188
FSC: 5310 — Nuts and Washers
CAGE: 13002 — GOODRICH CORPORATION DIV ADVANCED STRUCTURES LANDING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter3.969 INCHES MINIMUM AND 3.979 INCHES MAXIMUM IN
outside_diameter4.125 INCHES NOMINAL IN
style_designatorKEY
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.032 INCHES NOMINAL IN
external_key_quantity25
internal_prebent_key_width0.281 INCHES NOMINAL IN
external_straight_key_width0.312 INCHES NOMINAL IN
internal_prebent_key_length0.218 INCHES NOMINAL IN
overall_distance_including_keys4.500 INCHES NOMINAL IN
NSN5310-00-637-8563
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 16-1877 · 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
•
INTERNAL PREBENT KEY WIDTH: 0.281 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 4.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 4.125 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.312 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 25
•
INTERNAL PREBENT KEY LENGTH: 0.218 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
INTERNAL PREBENT KEY WIDTH0.281 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS4.500 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER4.125 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.312 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY25
INTERNAL PREBENT KEY LENGTH0.218 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 16-1877?
16-1877 is a GASKET.
What is the NSN for 16-1877?
16-1877 is cataloged in the U.S. Government catalog under NSN 5310-00-637-8563. 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.