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91074A330 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91074A330: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.340 INCHES NOMINAL IN, overall_height: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, hardness_rating: 46.0 ROCKWELL C NOMINAL, outside_diameter: 0.650 INCHES NOMINAL IN, special_features: ROHS COMPLIANT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-689-5874, 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
91074A330
NSN: 5310-01-689-5874
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.340 INCHES NOMINAL IN
overall_height0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C NOMINAL
outside_diameter0.650 INCHES NOMINAL IN
special_featuresROHS COMPLIANT
style_designatorTWO PIECE INTERLOCKING
surface_treatmentZINC OVERALL
part_name_assigned_by_controlling_agencyZINC-FLAKE-COATED STEEL WIDGE LOCK WASHER
NSN5310-01-689-5874
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91074A330 · 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: 46.0 ROCKWELL C NOMINAL
•
STYLE DESIGNATOR: TWO PIECE INTERLOCKING
•
OUTSIDE DIAMETER: 0.650 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C NOMINAL
STYLE DESIGNATORTWO PIECE INTERLOCKING
OUTSIDE DIAMETER0.650 INCHES NOMINAL IN
SPECIAL FEATURESROHS COMPLIANT
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYZINC-FLAKE-COATED STEEL WIDGE LOCK WASHER
MATERIALSTEEL OVERALL
HOLE DIAMETER0.340 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 91074A330?
91074A330 is a WASHER,LOCK.
What is the NSN for 91074A330?
91074A330 is cataloged in the U.S. Government catalog under NSN 5310-01-689-5874. 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.