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1190.340.74.062.120 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1190.340.74.062.120: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.062 INCHES NOMINAL IN, hole_diameter: 0.340 INCHES NOMINAL IN, overall_diameter: 0.740 INCHES NOMINAL IN, special_features: MATERIAL IS NYLON, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-546-5285, 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
1190.340.74.062.120
NSN: 5310-01-546-5285
FSC: 5310 — Nuts and Washers
CAGE: 1GV12 — FASTENERS INC. (USA)
SPECIFICATIONS
thickness0.062 INCHES NOMINAL IN
hole_diameter0.340 INCHES NOMINAL IN
overall_diameter0.740 INCHES NOMINAL IN
special_featuresMATERIAL IS NYLON
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification1940-01-526-7164, MK3 BRIDGE ERECTION BOAT
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyNYLON WASHER
NSN5310-01-546-5285
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1190.340.74.062.120 · 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
•
OVERALL DIAMETER: 0.740 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.340 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.740 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESMATERIAL IS NYLON
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNYLON WASHER
END ITEM IDENTIFICATION1940-01-526-7164, MK3 BRIDGE ERECTION BOAT
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.340 INCHES NOMINAL IN
THICKNESS0.062 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 1
5/16 PLASTIC FLAT WASHERReference document
Same NSN cross-reference
Reference document — Secondary reference
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 1190.340.74.062.120?
1190.340.74.062.120 is a WASHER,FLAT.
What parts can replace 1190.340.74.062.120?
There is 1 known substitute for 1190.340.74.062.120: 5/16 PLASTIC FLAT WASHER. Substitute compatibility should be verified for your specific system.
What is the NSN for 1190.340.74.062.120?
1190.340.74.062.120 is cataloged in the U.S. Government catalog under NSN 5310-01-546-5285. 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.