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TW104 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

TW104: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.801 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN, outside_diameter: 1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.058 INCHES NOMINAL IN, external_key_quantity: 11. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-830-1677, 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
TW104
NSN: 5310-00-830-1677
FSC: 5310 — Nuts and Washers
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.801 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
outside_diameter1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.058 INCHES NOMINAL IN
external_key_quantity11
external_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_width0.166 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
internal_prebent_key_length0.063 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
overall_distance_including_keys1.562 INCHES NOMINAL IN
NSN5310-00-830-1677
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: TW104 · 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: 0.166 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.058 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 11
•
INTERNAL PREBENT KEY LENGTH: 0.063 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INTERNAL PREBENT KEY WIDTH0.166 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS1.562 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
MATERIAL THICKNESS0.058 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY11
INTERNAL PREBENT KEY LENGTH0.063 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.801 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
WH-104Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS0431S4400E1635908PC6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TW104?
TW104 is a WASHER,KEY.
What parts can replace TW104?
There are 2 known substitutes for TW104: WH-104, MS0431S4400E1635908PC6. Substitute compatibility should be verified for your specific system.
What is the NSN for TW104?
TW104 is cataloged in the U.S. Government catalog under NSN 5310-00-830-1677. 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.