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91104A033 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91104A033: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OVERALL, hole_diameter: 0.512 INCHES NOMINAL IN, hardness_rating: 38.0 ROCKWELL C NOMINAL, outside_diameter: 0.869 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.125 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-516-7549, 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
91104A033
NSN: 5310-01-516-7549
FSC: 5310 — Nuts and Washers
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 4037 OVERALL
hole_diameter0.512 INCHES NOMINAL IN
hardness_rating38.0 ROCKWELL C NOMINAL
outside_diameter0.869 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.125 INCHES MINIMUM IN
end_item_identificationMRAP - COUGAR; LOGISTICS SUPPORT VESSEL
NSN5310-01-516-7549
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91104A033 · 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: 38.0 ROCKWELL C NOMINAL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.869 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.125 INCHES MINIMUM IN
•
MATERIAL: STEEL COMP 4037 OVERALL
•
HOLE DIAMETER: 0.512 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING38.0 ROCKWELL C NOMINAL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.869 INCHES NOMINAL IN
MATERIAL THICKNESS0.125 INCHES MINIMUM IN
END ITEM IDENTIFICATIONMRAP - COUGAR; LOGISTICS SUPPORT VESSEL
MATERIALSTEEL COMP 4037 OVERALL
HOLE DIAMETER0.512 INCHES NOMINAL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91104A033?
91104A033 is a WASHER,LOCK.
What is the NSN for 91104A033?
91104A033 is cataloged in the U.S. Government catalog under NSN 5310-01-516-7549. 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.