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1404448 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1404448: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN, thickness: 0.060 INCHES NOMINAL IN, hole_diameter: 0.529 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN, width_across_flats: 1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN, peripheral_shape_style: RECTANGULAR, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-894-4677, 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
1404448
NSN: 5310-00-894-4677
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
length1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
materialSTEEL COMP 1015 OR STEEL COMP 1020 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1018 OVERALL
thickness0.060 INCHES NOMINAL IN
hole_diameter0.529 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
width_across_flats1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
peripheral_shape_styleRECTANGULAR
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-894-4677
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1404448 · 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
•
WIDTH ACROSS FLATS: 1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
•
LENGTH: 1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 6TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 7TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 8TH MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL COMP 1015 OR STEEL COMP 1020 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1018 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.529 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.030 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN
LENGTH1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 1ST MATERIAL RESPONSE OR AISI ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 6TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 7TH MATERIAL RESPONSE OR QQ-S-698,COND HRCQ FED SPEC 8TH MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLERECTANGULAR
MATERIALSTEEL COMP 1015 OR STEEL COMP 1020 OR STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1018 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.529 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
THICKNESS0.060 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1404448?
1404448 is a WASHER,FLAT.
What is the NSN for 1404448?
1404448 is cataloged in the U.S. Government catalog under NSN 5310-00-894-4677. 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.