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91104A050 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91104A050: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: 1 1/8" SCREW SIZE;CHROMATE PLATED;ID 1.153" X OD 1.903" X MIN THICK 0.345", surface_treatment: ZINC OVERALL, end_item_identification: 2330-01-108-7367 TRAILER, TANK, part_name_assigned_by_controlling_agency: HEAVY DUTY SPRING LOCK WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-556-9166, 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
91104A050
NSN: 5310-01-556-9166
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_features1 1/8" SCREW SIZE;CHROMATE PLATED;ID 1.153" X OD 1.903" X MIN THICK 0.345"
surface_treatmentZINC OVERALL
end_item_identification2330-01-108-7367 TRAILER, TANK
part_name_assigned_by_controlling_agencyHEAVY DUTY SPRING LOCK WASHER
NSN5310-01-556-9166
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91104A050 · 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
•
COLOR: YELLOW OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
COLORYELLOW OVERALL
SPECIAL FEATURES1 1/8" SCREW SIZE;CHROMATE PLATED;ID 1.153" X OD 1.903" X MIN THICK 0.345"
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYHEAVY DUTY SPRING LOCK WASHER
END ITEM IDENTIFICATION2330-01-108-7367 TRAILER, TANK
MATERIALSTEEL 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 91104A050?
91104A050 is a WASHER,LOCK.
What is the NSN for 91104A050?
91104A050 is cataloged in the U.S. Government catalog under NSN 5310-01-556-9166. 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.