PartsTable
Technical Data Sheet
Download PDF

775-4412-001 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

775-4412-001: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, thickness: 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN, hole_diameter: 0.187 INCHES NOMINAL IN, overall_diameter: 0.250 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND W/FLATS. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-809-2573, 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
775-4412-001
NSN: 5310-00-809-2573
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
thickness0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
hole_diameter0.187 INCHES NOMINAL IN
overall_diameter0.250 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND W/FLATS
hole_width_across_flats0.070 INCHES NOMINAL IN
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-809-2573
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 775-4412-001 · 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: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
•
HOLE WIDTH ACROSS FLATS: 0.070 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND W/FLATS
•
HOLE DIAMETER: 0.187 INCHES NOMINAL IN
•
THICKNESS: 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
HOLE WIDTH ACROSS FLATS0.070 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND W/FLATS
HOLE DIAMETER0.187 INCHES NOMINAL IN
THICKNESS0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM 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 775-4412-001?
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 775-4412-001?
775-4412-001 is a WASHER,FLAT.
What is the NSN for 775-4412-001?
775-4412-001 is cataloged in the U.S. Government catalog under NSN 5310-00-809-2573. 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 — 775-4412-001

✓ 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.