PartsTable
Technical Data Sheet
Download PDF

12592391 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12592391: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.155 INCHES NOMINAL IN, hole_diameter: 0.890 INCHES NOMINAL IN, overall_diameter: 1.660 INCHES NOMINAL IN, special_features: 20 DEGREE ANGLE AT FIRST END FOR LENGTH OF 0.92 IN.WITH HOLE 0.187 IN. DIA IN, peripheral_shape_style: ROUND.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-342-4963, 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
12592391
NSN: 5310-01-342-4963
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.155 INCHES NOMINAL IN
hole_diameter0.890 INCHES NOMINAL IN
overall_diameter1.660 INCHES NOMINAL IN
special_features20 DEGREE ANGLE AT FIRST END FOR LENGTH OF 0.92 IN.WITH HOLE 0.187 IN. DIA IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationM119A1 HOWITZER
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-342-4963
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12592391 · 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: 1.660 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.890 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.660 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURES20 DEGREE ANGLE AT FIRST END FOR LENGTH OF 0.92 IN.WITH HOLE 0.187 IN. DIA IN
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONM119A1 HOWITZER
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.890 INCHES NOMINAL IN
THICKNESS0.155 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 12592391?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 12592391?
12592391 is a WASHER,FLAT.
What is the NSN for 12592391?
12592391 is cataloged in the U.S. Government catalog under NSN 5310-01-342-4963. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 12592391

✓ 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.